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1478 lines
34 KiB
Perl
1478 lines
34 KiB
Perl
@c
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@c COPYRIGHT (c) 1988-2008.
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@c On-Line Applications Research Corporation (OAR).
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@c All rights reserved.
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@c
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@c $Id$
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@c
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@chapter File and Directory Commands
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@section Introduction
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The RTEMS shell has the following file and directory commands:
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@itemize @bullet
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@item @code{umask} - Set file mode creation mask
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@item @code{cp} - copy files
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@item @code{pwd} - print work directory
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@item @code{ls} - list files in the directory
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@item @code{chdir} - change the current directory
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@item @code{mkdir} - create a directory
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@item @code{rmdir} - remove empty directories
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@item @code{chroot} - change the root directory
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@item @code{chmod} - change permissions of a file
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@item @code{cat} - display file contents
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@item @code{msdosfmt} - format disk
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@item @code{rm} - remove files
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@item @code{mount} - mount disk
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@item @code{unmount} - unmount disk
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@item @code{blksync} - sync the block driver
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@item @code{dir} - alias for ls
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@item @code{cd} - alias for chdir
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@end itemize
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@section Commands
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This section details the File and Directory Commands available. A
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subsection is dedicated to each of the commands and
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describes the behavior and configuration of that
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command as well as providing an example usage.
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@c
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@c
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@c
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@page
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@subsection umask - set file mode creation mask
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@pgindex umask
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@subheading SYNOPSYS:
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@example
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umask [new_umask]
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@end example
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@subheading DESCRIPTION:
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This command sets the user file creation mask to @code{new_umask}. The
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argument @code{new_umask} may be octal, hexadecimal, or decimal.
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@subheading EXIT STATUS:
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This command returns 0 on success and non-zero if an error is encountered.
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@subheading NOTES:
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This command does not currently support symbolic mode masks.
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@subheading EXAMPLES:
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The following is an example of how to use @code{umask}:
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@example
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SHLL [/] $ umask
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022
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SHLL [/] $ umask 0666
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0666
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SHLL [/] $ umask
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0666
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@end example
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@subheading CONFIGURATION:
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@findex CONFIGURE_SHELL_NO_COMMAND_UMASK
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@findex CONFIGURE_SHELL_COMMAND_UMASK
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This command is included in the default shell command set.
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When building a custom command set, define
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@code{CONFIGURE_SHELL_COMMAND_UMASK} to have this
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command included.
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This command can be excluded from the shell command set by
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defining @code{CONFIGURE_SHELL_NO_COMMAND_UMASK} when all
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shell commands have been configured.
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@subheading PROGRAMMING INFORMATION:
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@findex rtems_shell_rtems_main_umask
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The @code{umask} is implemented by a C language function
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which has the following prototype:
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@example
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int rtems_shell_rtems_main_umask(
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int argc,
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char **argv
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);
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@end example
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The configuration structure for the @code{umask} has the
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following prototype:
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@example
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extern rtems_shell_cmd_t rtems_shell_UMASK_Command;
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@end example
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@c
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@c
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@c
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@page
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@subsection cp - copy files
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@pgindex cp
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@subheading SYNOPSYS:
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@example
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cp [-R [-H | -L | -P]] [-f | -i] [-pv] src target
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cp [-R [-H | -L] ] [-f | -i] [-NpPv] source_file ... target_directory
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@end example
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@subheading DESCRIPTION:
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In the first synopsis form, the cp utility copies the contents of the
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source_file to the target_file. In the second synopsis form, the contents of
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each named source_file is copied to the destination target_directory. The names
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of the files themselves are not changed. If cp detects an attempt to copy a
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file to itself, the copy will fail.
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The following options are available:
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@table @b
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@item -f
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For each existing destination pathname, attempt to overwrite it. If permissions
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do not allow copy to succeed, remove it and create a new file, without
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prompting for confirmation. (The -i option is ignored if the -f option is
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specified.)
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@item -H
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If the -R option is specified, symbolic links on the command line are followed.
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(Symbolic links encountered in the tree traversal are not followed.)
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@item -i
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Causes cp to write a prompt to the standard error output before copying a file
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that would overwrite an existing file. If the response from the standard input
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begins with the character 'y', the file copy is attempted.
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@item -L
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If the -R option is specified, all symbolic links are followed.
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@item -N
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When used with -p, do not copy file flags.
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@item -P
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No symbolic links are followed.
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@item -p
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Causes cp to preserve in the copy as many of the modification time, access
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time, file flags, file mode, user ID, and group ID as allowed by permissions.
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If the user ID and group ID cannot be preserved, no error message is displayed
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and the exit value is not altered.
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If the source file has its set user ID bit on and the user ID cannot be
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preserved, the set user ID bit is not preserved in the copy's permissions. If
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the source file has its set group ID bit on and the group ID cannot be
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preserved, the set group ID bit is not preserved in the copy's permissions. If
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the source file has both its set user ID and set group ID bits on, and either
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the user ID or group ID cannot be preserved, neither the set user ID or set
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group ID bits are preserved in the copy's permissions.
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@item -R
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If source_file designates a directory, cp copies the directory and the entire
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subtree connected at that point. This option also causes symbolic links to be
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copied, rather than indirected through, and for cp to create special files
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rather than copying them as normal files. Created directories have the same
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mode as the corresponding source directory, unmodified by the process's umask.
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@item -v
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Cause cp to be verbose, showing files as they are copied.
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@end table
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For each destination file that already exists, its contents are overwritten if
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permissions allow, but its mode, user ID, and group ID are unchanged.
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In the second synopsis form, target_directory must exist unless there is only
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one named source_file which is a directory and the -R flag is specified.
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If the destination file does not exist, the mode of the source file is used as
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modified by the file mode creation mask (umask, see csh(1)). If the source file
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has its set user ID bit on, that bit is removed unless both the source file and
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the destination file are owned by the same user. If the source file has its set
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group ID bit on, that bit is removed unless both the source file and the
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destination file are in the same group and the user is a member of that group.
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If both the set user ID and set group ID bits are set, all of the above
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conditions must be fulfilled or both bits are removed.
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Appropriate permissions are required for file creation or overwriting.
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Symbolic links are always followed unless the -R flag is set, in which case
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symbolic links are not followed, by default. The -H or -L flags (in conjunction
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with the -R flag), as well as the -P flag cause symbolic links to be followed
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as described above. The -H and -L options are ignored unless the -R option is
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specified. In addition, these options override eachsubhedading other and the
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command's actions are determined by the last one specified.
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@subheading EXIT STATUS:
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This command returns 0 on success and non-zero if an error is encountered.
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@subheading NOTES:
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NONE
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@subheading EXAMPLES:
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The following is an example of how to use @code{cp} to
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copy a file to a new name in the current directory:
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@example
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SHLL [/] # cat joel
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cat: joel: No such file or directory
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SHLL [/] # cp etc/passwd joel
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SHLL [/] # cat joel
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root:*:0:0:root::/:/bin/sh
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rtems:*:1:1:RTEMS Application::/:/bin/sh
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tty:!:2:2:tty owner::/:/bin/false
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SHLL [/] # ls
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drwxr-xr-x 1 root root 536 Jan 01 00:00 dev/
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drwxr-xr-x 1 root root 1072 Jan 01 00:00 etc/
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-rw-r--r-- 1 root root 102 Jan 01 00:00 joel
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3 files 1710 bytes occupied
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@end example
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The following is an example of how to use @code{cp} to
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copy one or more files to a destination directory and
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use the same @code{basename} in the destination directory:
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@example
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SHLL [/] # mkdir tmp
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SHLL [/] # ls tmp
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0 files 0 bytes occupied
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SHLL [/] # cp /etc/passwd tmp
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SHLL [/] # ls /tmp
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-rw-r--r-- 1 root root 102 Jan 01 00:01 passwd
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1 files 102 bytes occupied
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SHLL [/] # cp /etc/passwd /etc/group /tmp
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SHLL [/] # ls /tmp
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-rw-r--r-- 1 root root 102 Jan 01 00:01 passwd
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-rw-r--r-- 1 root root 42 Jan 01 00:01 group
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2 files 144 bytes occupied
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SHLL [/] #
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@end example
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@subheading CONFIGURATION:
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@findex CONFIGURE_SHELL_NO_COMMAND_CP
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@findex CONFIGURE_SHELL_COMMAND_CP
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This command is included in the default shell command set.
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When building a custom command set, define
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@code{CONFIGURE_SHELL_COMMAND_CP} to have this
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command included.
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This command can be excluded from the shell command set by
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defining @code{CONFIGURE_SHELL_NO_COMMAND_CP} when all
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shell commands have been configured.
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@subheading PROGRAMMING INFORMATION:
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@findex rtems_shell_rtems_main_cp
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The @code{cp} is implemented by a C language function
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which has the following prototype:
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@example
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int rtems_shell_rtems_main_cp(
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int argc,
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char **argv
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);
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@end example
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The configuration structure for the @code{cp} has the
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following prototype:
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@example
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extern rtems_shell_cmd_t rtems_shell_CP_Command;
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@end example
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@subheading ORIGIN:
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The implementation and portions of the documentation for this
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command are from NetBSD 4.0.
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@c
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@c
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@c
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@page
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@subsection pwd - print work directory
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@pgindex pwd
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@subheading SYNOPSYS:
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@example
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pwd
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@end example
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@subheading DESCRIPTION:
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This command prints the fully qualified filename of the current
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working directory.
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@subheading EXIT STATUS:
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This command returns 0 on success and non-zero if an error is encountered.
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@subheading NOTES:
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NONE
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@subheading EXAMPLES:
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The following is an example of how to use @code{pwd}:
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@example
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SHLL [/] $ pwd
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/
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SHLL [/] $ cd dev
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SHLL [/dev] $ pwd
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/dev
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@end example
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@subheading CONFIGURATION:
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@findex CONFIGURE_SHELL_NO_COMMAND_PWD
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@findex CONFIGURE_SHELL_COMMAND_PWD
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This command is included in the default shell command set.
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When building a custom command set, define
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@code{CONFIGURE_SHELL_COMMAND_PWD} to have this
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command included.
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This command can be excluded from the shell command set by
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defining @code{CONFIGURE_SHELL_NO_COMMAND_PWD} when all
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shell commands have been configured.
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@subheading PROGRAMMING INFORMATION:
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@findex rtems_shell_rtems_main_pwd
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The @code{pwd} is implemented by a C language function
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which has the following prototype:
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@example
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int rtems_shell_rtems_main_pwd(
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int argc,
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char **argv
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);
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@end example
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The configuration structure for the @code{pwd} has the
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following prototype:
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@example
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extern rtems_shell_cmd_t rtems_shell_PWD_Command;
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@end example
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@c
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@c
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@c
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@page
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@subsection ls - list files in the directory
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@pgindex ls
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@subheading SYNOPSYS:
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@example
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ls [dir]
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@end example
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@subheading DESCRIPTION:
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This command displays the contents of the specified directory. If
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no arguments are given, then it displays the contents of the current
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working directory.
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@subheading EXIT STATUS:
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This command returns 0 on success and non-zero if an error is encountered.
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@subheading NOTES:
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This command currently does not display information on a set of
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files like the POSIX ls(1). It only displays the contents of
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entire directories.
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@subheading EXAMPLES:
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The following is an example of how to use @code{ls}:
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@example
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SHLL [/] $ ls
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drwxr-xr-x 1 root root 536 Jan 01 00:00 dev/
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drwxr-xr-x 1 root root 1072 Jan 01 00:00 etc/
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2 files 1608 bytes occupied
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SHLL [/] $ ls etc
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-rw-r--r-- 1 root root 102 Jan 01 00:00 passwd
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-rw-r--r-- 1 root root 42 Jan 01 00:00 group
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-rw-r--r-- 1 root root 30 Jan 01 00:00 issue
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-rw-r--r-- 1 root root 28 Jan 01 00:00 issue.net
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4 files 202 bytes occupied
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SHLL [/] $ ls dev etc
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-rwxr-xr-x 1 rtems root 0 Jan 01 00:00 console
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-rwxr-xr-x 1 root root 0 Jan 01 00:00 console_b
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@end example
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@subheading CONFIGURATION:
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@findex CONFIGURE_SHELL_NO_COMMAND_LS
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@findex CONFIGURE_SHELL_COMMAND_LS
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This command is included in the default shell command set.
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When building a custom command set, define
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@code{CONFIGURE_SHELL_COMMAND_LS} to have this
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command included.
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This command can be excluded from the shell command set by
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defining @code{CONFIGURE_SHELL_NO_COMMAND_LS} when all
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shell commands have been configured.
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@subheading PROGRAMMING INFORMATION:
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@findex rtems_shell_rtems_main_ls
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The @code{ls} is implemented by a C language function
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which has the following prototype:
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@example
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int rtems_shell_rtems_main_ls(
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int argc,
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char **argv
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);
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@end example
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The configuration structure for the @code{ls} has the
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following prototype:
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@example
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extern rtems_shell_cmd_t rtems_shell_LS_Command;
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@end example
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@c
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@c
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@c
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@page
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@subsection chdir - change the current directory
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@pgindex chdir
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@subheading SYNOPSYS:
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@example
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chdir [dir]
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@end example
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@subheading DESCRIPTION:
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This command is used to change the current working directory to
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the specified directory. If no arguments are given, the current
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working directory will be changed to @code{/}.
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@subheading EXIT STATUS:
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This command returns 0 on success and non-zero if an error is encountered.
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@subheading NOTES:
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NONE
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@subheading EXAMPLES:
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The following is an example of how to use @code{chdir}:
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@example
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SHLL [/] $ pwd
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/
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SHLL [/] $ chdir etc
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SHLL [/etc] $ pwd
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/etc
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@end example
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@subheading CONFIGURATION:
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@findex CONFIGURE_SHELL_NO_COMMAND_CHDIR
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@findex CONFIGURE_SHELL_COMMAND_CHDIR
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|
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This command is included in the default shell command set.
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When building a custom command set, define
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@code{CONFIGURE_SHELL_COMMAND_CHDIR} to have this
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command included.
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This command can be excluded from the shell command set by
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defining @code{CONFIGURE_SHELL_NO_COMMAND_CHDIR} when all
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shell commands have been configured.
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@subheading PROGRAMMING INFORMATION:
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@findex rtems_shell_rtems_main_chdir
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The @code{chdir} is implemented by a C language function
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which has the following prototype:
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@example
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int rtems_shell_rtems_main_chdir(
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int argc,
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char **argv
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);
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@end example
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The configuration structure for the @code{chdir} has the
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following prototype:
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@example
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extern rtems_shell_cmd_t rtems_shell_CHDIR_Command;
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@end example
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@c
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@c
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@c
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@page
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@subsection mkdir - create a directory
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@pgindex mkdir
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@subheading SYNOPSYS:
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@example
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mkdir dir [dir1 .. dirN]
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@end example
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@subheading DESCRIPTION:
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This command creates the set of directories in the order they
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are specified on the command line. If an error is encountered
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making one of the directories, the command will continue to
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attempt to create the remaining directories on the command line.
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|
|
|
@subheading EXIT STATUS:
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|
This command returns 0 on success and non-zero if an error is encountered.
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|
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|
@subheading NOTES:
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|
|
If this command is invoked with no arguments, nothing occurs.
|
|
|
|
The user must have sufficient permissions to create the directory.
|
|
For the @code{fileio} test provided with RTEMS, this means the user
|
|
must login as @code{root} not @code{rtems}.
|
|
|
|
@subheading EXAMPLES:
|
|
|
|
The following is an example of how to use @code{mkdir}:
|
|
|
|
@example
|
|
SHLL [/] # ls
|
|
drwxr-xr-x 1 root root 536 Jan 01 00:00 dev/
|
|
drwxr-xr-x 1 root root 1072 Jan 01 00:00 etc/
|
|
2 files 1608 bytes occupied
|
|
SHLL [/] # mkdir joel
|
|
SHLL [/] # ls joel
|
|
0 files 0 bytes occupied
|
|
SHLL [/] # cp etc/passwd joel
|
|
SHLL [/] # ls joel
|
|
-rw-r--r-- 1 root root 102 Jan 01 00:02 passwd
|
|
1 files 102 bytes occupied
|
|
@end example
|
|
|
|
@subheading CONFIGURATION:
|
|
|
|
@findex CONFIGURE_SHELL_NO_COMMAND_MKDIR
|
|
@findex CONFIGURE_SHELL_COMMAND_MKDIR
|
|
|
|
This command is included in the default shell command set.
|
|
When building a custom command set, define
|
|
@code{CONFIGURE_SHELL_COMMAND_MKDIR} to have this
|
|
command included.
|
|
|
|
This command can be excluded from the shell command set by
|
|
defining @code{CONFIGURE_SHELL_NO_COMMAND_MKDIR} when all
|
|
shell commands have been configured.
|
|
|
|
@subheading PROGRAMMING INFORMATION:
|
|
|
|
@findex rtems_shell_rtems_main_mkdir
|
|
|
|
The @code{mkdir} is implemented by a C language function
|
|
which has the following prototype:
|
|
|
|
@example
|
|
int rtems_shell_rtems_main_mkdir(
|
|
int argc,
|
|
char **argv
|
|
);
|
|
@end example
|
|
|
|
The configuration structure for the @code{mkdir} has the
|
|
following prototype:
|
|
|
|
@example
|
|
extern rtems_shell_cmd_t rtems_shell_MKDIR_Command;
|
|
@end example
|
|
|
|
@c
|
|
@c
|
|
@c
|
|
@page
|
|
@subsection rmdir - remove empty directories
|
|
|
|
@pgindex rmdir
|
|
|
|
@subheading SYNOPSYS:
|
|
|
|
@example
|
|
rmdir [dir1 .. dirN]
|
|
@end example
|
|
|
|
@subheading DESCRIPTION:
|
|
|
|
This command removes the specified set of directories. If no
|
|
directories are provided on the command line, no actions are taken.
|
|
|
|
@subheading EXIT STATUS:
|
|
|
|
This command returns 0 on success and non-zero if an error is encountered.
|
|
|
|
@subheading NOTES:
|
|
|
|
This command is a implemented using the @code{rmdir(2)} system
|
|
call and all reasons that call may fail apply to this command.
|
|
|
|
@subheading EXAMPLES:
|
|
|
|
The following is an example of how to use @code{rmdir}:
|
|
|
|
@example
|
|
SHLL [/] # mkdir joeldir
|
|
SHLL [/] # rmdir joeldir
|
|
SHLL [/] # ls joeldir
|
|
joeldir: No such file or directory.
|
|
@end example
|
|
|
|
@subheading CONFIGURATION:
|
|
|
|
@findex CONFIGURE_SHELL_NO_COMMAND_RMDIR
|
|
@findex CONFIGURE_SHELL_COMMAND_RMDIR
|
|
|
|
This command is included in the default shell command set.
|
|
When building a custom command set, define
|
|
@code{CONFIGURE_SHELL_COMMAND_RMDIR} to have this
|
|
command included.
|
|
|
|
This command can be excluded from the shell command set by
|
|
defining @code{CONFIGURE_SHELL_NO_COMMAND_RMDIR} when all
|
|
shell commands have been configured.
|
|
|
|
@subheading PROGRAMMING INFORMATION:
|
|
|
|
@findex rtems_shell_rtems_main_rmdir
|
|
|
|
The @code{rmdir} is implemented by a C language function
|
|
which has the following prototype:
|
|
|
|
@example
|
|
int rtems_shell_rtems_main_rmdir(
|
|
int argc,
|
|
char **argv
|
|
);
|
|
@end example
|
|
|
|
The configuration structure for the @code{rmdir} has the
|
|
following prototype:
|
|
|
|
@example
|
|
extern rtems_shell_cmd_t rtems_shell_RMDIR_Command;
|
|
@end example
|
|
|
|
@c
|
|
@c
|
|
@c
|
|
@page
|
|
@subsection chroot - change the root directory
|
|
|
|
@pgindex chroot
|
|
|
|
@subheading SYNOPSYS:
|
|
|
|
@example
|
|
chroot [dir]
|
|
@end example
|
|
|
|
@subheading DESCRIPTION:
|
|
|
|
This command changes the root directory to @code{dir} for subsequent
|
|
commands.
|
|
|
|
@subheading EXIT STATUS:
|
|
|
|
This command returns 0 on success and non-zero if an error is encountered.
|
|
|
|
The destination directory @code{dir} must exist.
|
|
|
|
@subheading NOTES:
|
|
|
|
NONE
|
|
|
|
@subheading EXAMPLES:
|
|
|
|
The following is an example of how to use @code{chroot}
|
|
and the impact it has on the environment for subsequent
|
|
command invocations:
|
|
|
|
@example
|
|
SHLL [/] $ cat passwd
|
|
cat: passwd: No such file or directory
|
|
SHLL [/] $ chroot etc
|
|
SHLL [/] $ cat passwd
|
|
root:*:0:0:root::/:/bin/sh
|
|
rtems:*:1:1:RTEMS Application::/:/bin/sh
|
|
tty:!:2:2:tty owner::/:/bin/false
|
|
SHLL [/] $ cat /etc/passwd
|
|
cat: /etc/passwd: No such file or directory
|
|
@end example
|
|
|
|
@subheading CONFIGURATION:
|
|
|
|
@findex CONFIGURE_SHELL_NO_COMMAND_CHROOT
|
|
@findex CONFIGURE_SHELL_COMMAND_CHROOT
|
|
|
|
This command is included in the default shell command set.
|
|
When building a custom command set, define
|
|
@code{CONFIGURE_SHELL_COMMAND_CHROOT} to have this
|
|
command included.
|
|
|
|
This command can be excluded from the shell command set by
|
|
defining @code{CONFIGURE_SHELL_NO_COMMAND_CHROOT} when all
|
|
shell commands have been configured.
|
|
|
|
@subheading PROGRAMMING INFORMATION:
|
|
|
|
@findex rtems_shell_rtems_main_chroot
|
|
|
|
The @code{chroot} is implemented by a C language function
|
|
which has the following prototype:
|
|
|
|
@example
|
|
int rtems_shell_rtems_main_chroot(
|
|
int argc,
|
|
char **argv
|
|
);
|
|
@end example
|
|
|
|
The configuration structure for the @code{chroot} has the
|
|
following prototype:
|
|
|
|
@example
|
|
extern rtems_shell_cmd_t rtems_shell_CHROOT_Command;
|
|
@end example
|
|
|
|
@c
|
|
@c
|
|
@c
|
|
@page
|
|
@subsection chmod - change permissions of a file
|
|
|
|
@pgindex chmod
|
|
|
|
@subheading SYNOPSYS:
|
|
|
|
@example
|
|
chmod permissions file1 [file2...]
|
|
@end example
|
|
|
|
@subheading DESCRIPTION:
|
|
|
|
This command changes the permissions on the files specified to the
|
|
indicated @code{permissions}. The permission values are POSIX based
|
|
with owner, group, and world having individual read, write, and
|
|
executive permission bits.
|
|
|
|
@subheading EXIT STATUS:
|
|
|
|
This command returns 0 on success and non-zero if an error is encountered.
|
|
|
|
@subheading NOTES:
|
|
|
|
The @code{chmod} command only takes numeric representations of
|
|
the permissions.
|
|
|
|
@subheading EXAMPLES:
|
|
|
|
The following is an example of how to use @code{chmod}:
|
|
|
|
@example
|
|
SHLL [/] # cd etc
|
|
SHLL [/etc] # ls
|
|
-rw-r--r-- 1 root root 102 Jan 01 00:00 passwd
|
|
-rw-r--r-- 1 root root 42 Jan 01 00:00 group
|
|
-rw-r--r-- 1 root root 30 Jan 01 00:00 issue
|
|
-rw-r--r-- 1 root root 28 Jan 01 00:00 issue.net
|
|
4 files 202 bytes occupied
|
|
SHLL [/etc] # chmod 0777 passwd
|
|
SHLL [/etc] # ls
|
|
-rwxrwxrwx 1 root root 102 Jan 01 00:00 passwd
|
|
-rw-r--r-- 1 root root 42 Jan 01 00:00 group
|
|
-rw-r--r-- 1 root root 30 Jan 01 00:00 issue
|
|
-rw-r--r-- 1 root root 28 Jan 01 00:00 issue.net
|
|
4 files 202 bytes occupied
|
|
SHLL [/etc] # chmod 0322 passwd
|
|
SHLL [/etc] # ls
|
|
--wx-w--w- 1 nouser root 102 Jan 01 00:00 passwd
|
|
-rw-r--r-- 1 nouser root 42 Jan 01 00:00 group
|
|
-rw-r--r-- 1 nouser root 30 Jan 01 00:00 issue
|
|
-rw-r--r-- 1 nouser root 28 Jan 01 00:00 issue.net
|
|
4 files 202 bytes occupied
|
|
SHLL [/etc] # chmod 0644 passwd
|
|
SHLL [/etc] # ls
|
|
-rw-r--r-- 1 root root 102 Jan 01 00:00 passwd
|
|
-rw-r--r-- 1 root root 42 Jan 01 00:00 group
|
|
-rw-r--r-- 1 root root 30 Jan 01 00:00 issue
|
|
-rw-r--r-- 1 root root 28 Jan 01 00:00 issue.net
|
|
4 files 202 bytes occupied
|
|
@end example
|
|
|
|
@subheading CONFIGURATION:
|
|
|
|
@findex CONFIGURE_SHELL_NO_COMMAND_CHMOD
|
|
@findex CONFIGURE_SHELL_COMMAND_CHMOD
|
|
|
|
This command is included in the default shell command set.
|
|
When building a custom command set, define
|
|
@code{CONFIGURE_SHELL_COMMAND_CHMOD} to have this
|
|
command included.
|
|
|
|
This command can be excluded from the shell command set by
|
|
defining @code{CONFIGURE_SHELL_NO_COMMAND_CHMOD} when all
|
|
shell commands have been configured.
|
|
|
|
@subheading PROGRAMMING INFORMATION:
|
|
|
|
@findex rtems_shell_rtems_main_chmod
|
|
|
|
The @code{chmod} is implemented by a C language function
|
|
which has the following prototype:
|
|
|
|
@example
|
|
int rtems_shell_rtems_main_chmod(
|
|
int argc,
|
|
char **argv
|
|
);
|
|
@end example
|
|
|
|
The configuration structure for the @code{chmod} has the
|
|
following prototype:
|
|
|
|
@example
|
|
extern rtems_shell_cmd_t rtems_shell_CHMOD_Command;
|
|
@end example
|
|
|
|
@c
|
|
@c
|
|
@c
|
|
@page
|
|
@subsection cat - display file contents
|
|
|
|
@pgindex cat
|
|
|
|
@subheading SYNOPSYS:
|
|
|
|
@example
|
|
cat file1 [file2 .. fileN]
|
|
@end example
|
|
|
|
@subheading DESCRIPTION:
|
|
|
|
This command displays the contents of the specified files.
|
|
|
|
@subheading EXIT STATUS:
|
|
|
|
This command returns 0 on success and non-zero if an error is encountered.
|
|
|
|
@subheading NOTES:
|
|
|
|
It is possible to read the input from a device file using @code{cat}.
|
|
|
|
@subheading EXAMPLES:
|
|
|
|
The following is an example of how to use @code{cat}:
|
|
|
|
@example
|
|
SHLL [/] # cat /etc/passwd
|
|
root:*:0:0:root::/:/bin/sh
|
|
rtems:*:1:1:RTEMS Application::/:/bin/sh
|
|
tty:!:2:2:tty owner::/:/bin/false
|
|
@end example
|
|
|
|
@subheading CONFIGURATION:
|
|
|
|
@findex CONFIGURE_SHELL_NO_COMMAND_CAT
|
|
@findex CONFIGURE_SHELL_COMMAND_CAT
|
|
|
|
This command is included in the default shell command set.
|
|
When building a custom command set, define
|
|
@code{CONFIGURE_SHELL_COMMAND_CAT} to have this
|
|
command included.
|
|
|
|
This command can be excluded from the shell command set by
|
|
defining @code{CONFIGURE_SHELL_NO_COMMAND_CAT} when all
|
|
shell commands have been configured.
|
|
|
|
@subheading PROGRAMMING INFORMATION:
|
|
|
|
@findex rtems_shell_rtems_main_cat
|
|
|
|
The @code{cat} is implemented by a C language function
|
|
which has the following prototype:
|
|
|
|
@example
|
|
int rtems_shell_rtems_main_cat(
|
|
int argc,
|
|
char **argv
|
|
);
|
|
@end example
|
|
|
|
The configuration structure for the @code{cat} has the
|
|
following prototype:
|
|
|
|
@example
|
|
extern rtems_shell_cmd_t rtems_shell_CAT_Command;
|
|
@end example
|
|
|
|
@c
|
|
@c
|
|
@c
|
|
@page
|
|
@subsection rm - remove files
|
|
|
|
@pgindex rm
|
|
|
|
@subheading SYNOPSYS:
|
|
|
|
@example
|
|
rm file1 [file2 ... fileN]
|
|
@end example
|
|
|
|
@subheading DESCRIPTION:
|
|
|
|
This command deletes a name from the filesystem. If the specified file name
|
|
was the last link to a file and there are no @code{open} file descriptor
|
|
references to that file, then it is deleted and the associated space in
|
|
the file system is made available for subsequent use.
|
|
|
|
If the filename specified was the last link to a file but there
|
|
are open file descriptor references to it, then the file will
|
|
remain in existence until the last file descriptor referencing
|
|
it is closed.
|
|
|
|
@subheading EXIT STATUS:
|
|
|
|
This command returns 0 on success and non-zero if an error is encountered.
|
|
|
|
@subheading NOTES:
|
|
|
|
NONE
|
|
|
|
@subheading EXAMPLES:
|
|
|
|
The following is an example of how to use @code{rm}:
|
|
|
|
@example
|
|
SHLL [/] # cp /etc/passwd tmpfile
|
|
SHLL [/] # cat tmpfile
|
|
root:*:0:0:root::/:/bin/sh
|
|
rtems:*:1:1:RTEMS Application::/:/bin/sh
|
|
tty:!:2:2:tty owner::/:/bin/false
|
|
SHLL [/] # rm tmpfile
|
|
SHLL [/] # cat tmpfile
|
|
cat: tmpfile: No such file or directory
|
|
@end example
|
|
|
|
@subheading CONFIGURATION:
|
|
|
|
@findex CONFIGURE_SHELL_NO_COMMAND_RM
|
|
@findex CONFIGURE_SHELL_COMMAND_RM
|
|
|
|
This command is included in the default shell command set.
|
|
When building a custom command set, define
|
|
@code{CONFIGURE_SHELL_COMMAND_RM} to have this
|
|
command included.
|
|
|
|
This command can be excluded from the shell command set by
|
|
defining @code{CONFIGURE_SHELL_NO_COMMAND_RM} when all
|
|
shell commands have been configured.
|
|
|
|
@subheading PROGRAMMING INFORMATION:
|
|
|
|
@findex rtems_shell_rtems_main_rm
|
|
|
|
The @code{rm} is implemented by a C language function
|
|
which has the following prototype:
|
|
|
|
@example
|
|
int rtems_shell_rtems_main_rm(
|
|
int argc,
|
|
char **argv
|
|
);
|
|
@end example
|
|
|
|
The configuration structure for the @code{rm} has the
|
|
following prototype:
|
|
|
|
@example
|
|
extern rtems_shell_cmd_t rtems_shell_RM_Command;
|
|
@end example
|
|
|
|
@c
|
|
@c
|
|
@c
|
|
@page
|
|
@subsection mount - mount disk
|
|
|
|
@pgindex mount
|
|
|
|
@subheading SYNOPSYS:
|
|
|
|
@example
|
|
mount [-t fstype] [-r] [-L] device path
|
|
@end example
|
|
|
|
@subheading DESCRIPTION:
|
|
|
|
The @code{mount} command will mount a block device to a mount point
|
|
using the specified file system. The files systems are:
|
|
|
|
@itemize @bullet
|
|
@item msdos - MSDOS File System
|
|
@item tftp - TFTP Network File System
|
|
@item ftp - FTP Network File System
|
|
@item nfs - Network File System
|
|
@end itemize
|
|
|
|
When the file system type is 'msdos' the driver is a "block device driver"
|
|
node present in the file system. The driver is ignored with the 'tftp' and
|
|
'ftp' file systems. For the 'nfs' file system the driver is the 'host:/path'
|
|
string that described NFS host and the exported file system path.
|
|
|
|
@subheading EXIT STATUS:
|
|
|
|
This command returns 0 on success and non-zero if an error is encountered.
|
|
|
|
@subheading NOTES:
|
|
|
|
The mount point must exist.
|
|
|
|
The services offered by each file-system vary. For example you cannot list the
|
|
directory of a TFTP file-system as this server is not provided in the TFTP
|
|
protocol. You need to check each file-system's documentation for the services
|
|
provided.
|
|
|
|
@subheading EXAMPLES:
|
|
|
|
Mount the Flash Disk driver to the '/fd' mount point:
|
|
|
|
@example
|
|
$ mount -t msdos /dev/flashdisk0 /fd
|
|
@end example
|
|
|
|
Mount the NFS file system exported path 'bar' by host 'foo':
|
|
|
|
@example
|
|
$ mount -t nfs foo:/bar /nfs
|
|
@end example
|
|
|
|
Mount the TFTP file system on '/tftp':
|
|
|
|
@example
|
|
$ mount -t tftp /tftp
|
|
@end example
|
|
|
|
To access the TFTP files on server '10.10.10.10':
|
|
|
|
@example
|
|
$ cat /tftp/10.10.10.10/test.txt
|
|
@end example
|
|
|
|
|
|
@subheading CONFIGURATION:
|
|
|
|
@findex CONFIGURE_SHELL_NO_COMMAND_MOUNT
|
|
@findex CONFIGURE_SHELL_COMMAND_MOUNT
|
|
|
|
This command is included in the default shell command set.
|
|
When building a custom command set, define
|
|
@code{CONFIGURE_SHELL_COMMAND_MOUNT} to have this
|
|
command included.
|
|
|
|
This command can be excluded from the shell command set by
|
|
defining @code{CONFIGURE_SHELL_NO_COMMAND_MOUNT} when all
|
|
shell commands have been configured.
|
|
|
|
The mount command includes references to file-system code. If you do not wish
|
|
to include file-system that you do not use do not define the mount command
|
|
support for that file-system. The file-system mount command defines are:
|
|
|
|
@itemize @bullet
|
|
@item msdos - CONFIGURE_SHELL_MOUNT_MSDOS
|
|
@item tftp - CONFIGURE_SHELL_MOUNT_TFTP
|
|
@item ftp - CONFIGURE_SHELL_MOUNT_FTP
|
|
@item nfs - CONFIGURE_SHELL_MOUNT_NFS
|
|
@end itemize
|
|
|
|
An example configuration is:
|
|
|
|
@example
|
|
#define CONFIGURE_SHELL_MOUNT_MSDOS
|
|
#ifdef RTEMS_NETWORKING
|
|
#define CONFIGURE_SHELL_MOUNT_TFTP
|
|
#define CONFIGURE_SHELL_MOUNT_FTP
|
|
#define CONFIGURE_SHELL_MOUNT_NFS
|
|
#endif
|
|
@end example
|
|
|
|
@subheading PROGRAMMING INFORMATION:
|
|
|
|
@findex rtems_shell_rtems_main_mount
|
|
|
|
The @code{mount} is implemented by a C language function
|
|
which has the following prototype:
|
|
|
|
@example
|
|
int rtems_shell_rtems_main_mount(
|
|
int argc,
|
|
char **argv
|
|
);
|
|
@end example
|
|
|
|
The configuration structure for the @code{mount} has the
|
|
following prototype:
|
|
|
|
@example
|
|
extern rtems_shell_cmd_t rtems_shell_MOUNT_Command;
|
|
@end example
|
|
|
|
@c
|
|
@c
|
|
@c
|
|
@page
|
|
@subsection unmount - unmount disk
|
|
|
|
@pgindex unmount
|
|
|
|
@subheading SYNOPSYS:
|
|
|
|
@example
|
|
unmount path
|
|
@end example
|
|
|
|
@subheading DESCRIPTION:
|
|
|
|
This command unmounts the device at the specified @code{path}.
|
|
|
|
@subheading EXIT STATUS:
|
|
|
|
This command returns 0 on success and non-zero if an error is encountered.
|
|
|
|
@subheading NOTES:
|
|
|
|
TBD - Surely there must be some warnings to go here.
|
|
|
|
@subheading EXAMPLES:
|
|
|
|
The following is an example of how to use @code{unmount}:
|
|
|
|
@example
|
|
EXAMPLE_TBD
|
|
@end example
|
|
|
|
@subheading CONFIGURATION:
|
|
|
|
@findex CONFIGURE_SHELL_NO_COMMAND_UNMOUNT
|
|
@findex CONFIGURE_SHELL_COMMAND_UNMOUNT
|
|
|
|
This command is included in the default shell command set.
|
|
When building a custom command set, define
|
|
@code{CONFIGURE_SHELL_COMMAND_UNMOUNT} to have this
|
|
command included.
|
|
|
|
This command can be excluded from the shell command set by
|
|
defining @code{CONFIGURE_SHELL_NO_COMMAND_UNMOUNT} when all
|
|
shell commands have been configured.
|
|
|
|
@subheading PROGRAMMING INFORMATION:
|
|
|
|
@findex rtems_shell_rtems_main_unmount
|
|
|
|
The @code{unmount} is implemented by a C language function
|
|
which has the following prototype:
|
|
|
|
@example
|
|
int rtems_shell_rtems_main_unmount(
|
|
int argc,
|
|
char **argv
|
|
);
|
|
@end example
|
|
|
|
The configuration structure for the @code{unmount} has the
|
|
following prototype:
|
|
|
|
@example
|
|
extern rtems_shell_cmd_t rtems_shell_UNMOUNT_Command;
|
|
@end example
|
|
|
|
@c
|
|
@c
|
|
@c
|
|
@page
|
|
@subsection blksync - sync the block driver
|
|
|
|
@pgindex blksync
|
|
|
|
@subheading SYNOPSYS:
|
|
|
|
@example
|
|
blksync driver
|
|
@end example
|
|
|
|
@subheading DESCRIPTION:
|
|
|
|
This command XXX
|
|
|
|
@subheading EXIT STATUS:
|
|
|
|
This command returns 0 on success and non-zero if an error is encountered.
|
|
|
|
@subheading NOTES:
|
|
|
|
NONE
|
|
|
|
@subheading EXAMPLES:
|
|
|
|
The following is an example of how to use @code{blksync}:
|
|
|
|
@example
|
|
EXAMPLE_TBD
|
|
@end example
|
|
|
|
@subheading CONFIGURATION:
|
|
|
|
@findex CONFIGURE_SHELL_NO_COMMAND_BLKSYNC
|
|
@findex CONFIGURE_SHELL_COMMAND_BLKSYNC
|
|
|
|
This command is included in the default shell command set.
|
|
When building a custom command set, define
|
|
@code{CONFIGURE_SHELL_COMMAND_BLKSYNC} to have this
|
|
command included.
|
|
|
|
This command can be excluded from the shell command set by
|
|
defining @code{CONFIGURE_SHELL_NO_COMMAND_BLKSYNC} when all
|
|
shell commands have been configured.
|
|
|
|
@subheading PROGRAMMING INFORMATION:
|
|
|
|
@findex rtems_shell_rtems_main_blksync
|
|
|
|
The @code{blksync} is implemented by a C language function
|
|
which has the following prototype:
|
|
|
|
@example
|
|
int rtems_shell_rtems_main_blksync(
|
|
int argc,
|
|
char **argv
|
|
);
|
|
@end example
|
|
|
|
The configuration structure for the @code{blksync} has the
|
|
following prototype:
|
|
|
|
@example
|
|
extern rtems_shell_cmd_t rtems_shell_BLKSYNC_Command;
|
|
@end example
|
|
|
|
@c
|
|
@c
|
|
@c
|
|
@page
|
|
@subsection dir - alias for ls
|
|
|
|
@pgindex dir
|
|
|
|
@subheading SYNOPSYS:
|
|
|
|
@example
|
|
dir [dir]
|
|
@end example
|
|
|
|
@subheading DESCRIPTION:
|
|
|
|
This command is an alias or alternate name for the @code{ls}.
|
|
See @ref{File and Directory Commands ls - list files in the directory, ls}
|
|
for more information.
|
|
|
|
@subheading EXIT STATUS:
|
|
|
|
This command returns 0 on success and non-zero if an error is encountered.
|
|
|
|
@subheading NOTES:
|
|
|
|
NONE
|
|
|
|
@subheading EXAMPLES:
|
|
|
|
The following is an example of how to use @code{dir}:
|
|
|
|
@example
|
|
SHLL [/] $ dir
|
|
drwxr-xr-x 1 root root 536 Jan 01 00:00 dev/
|
|
drwxr-xr-x 1 root root 1072 Jan 01 00:00 etc/
|
|
2 files 1608 bytes occupied
|
|
SHLL [/] $ dir etc
|
|
-rw-r--r-- 1 root root 102 Jan 01 00:00 passwd
|
|
-rw-r--r-- 1 root root 42 Jan 01 00:00 group
|
|
-rw-r--r-- 1 root root 30 Jan 01 00:00 issue
|
|
-rw-r--r-- 1 root root 28 Jan 01 00:00 issue.net
|
|
4 files 202 bytes occupied
|
|
@end example
|
|
|
|
@subheading CONFIGURATION:
|
|
|
|
@findex CONFIGURE_SHELL_NO_COMMAND_DIR
|
|
@findex CONFIGURE_SHELL_COMMAND_DIR
|
|
|
|
This command is included in the default shell command set.
|
|
When building a custom command set, define
|
|
@code{CONFIGURE_SHELL_COMMAND_DIR} to have this
|
|
command included.
|
|
|
|
This command can be excluded from the shell command set by
|
|
defining @code{CONFIGURE_SHELL_NO_COMMAND_DIR} when all
|
|
shell commands have been configured.
|
|
|
|
@subheading PROGRAMMING INFORMATION:
|
|
|
|
@findex rtems_shell_rtems_main_dir
|
|
|
|
The @code{dir} is implemented by a C language function
|
|
which has the following prototype:
|
|
|
|
@example
|
|
int rtems_shell_rtems_main_dir(
|
|
int argc,
|
|
char **argv
|
|
);
|
|
@end example
|
|
|
|
The configuration structure for the @code{dir} has the
|
|
following prototype:
|
|
|
|
@example
|
|
extern rtems_shell_cmd_t rtems_shell_DIR_Command;
|
|
@end example
|
|
|
|
@c
|
|
@c
|
|
@c
|
|
@page
|
|
@subsection cd - alias for chdir
|
|
|
|
@pgindex cd
|
|
|
|
@subheading SYNOPSYS:
|
|
|
|
@example
|
|
cd directory
|
|
@end example
|
|
|
|
@subheading DESCRIPTION:
|
|
|
|
This command is an alias or alternate name for the @code{chdir}.
|
|
See @ref{File and Directory Commands chdir - change the current directory, cd}
|
|
for more information.
|
|
|
|
@subheading EXIT STATUS:
|
|
|
|
This command returns 0 on success and non-zero if an error is encountered.
|
|
|
|
@subheading NOTES:
|
|
|
|
NONE
|
|
|
|
@subheading EXAMPLES:
|
|
|
|
The following is an example of how to use @code{cd}:
|
|
|
|
@example
|
|
SHLL [/] $ cd etc
|
|
SHLL [/etc] $ cd /
|
|
SHLL [/] $ cd /etc
|
|
SHLL [/etc] $ pwd
|
|
/etc
|
|
SHLL [/etc] $ cd /
|
|
SHLL [/] $ pwd
|
|
/
|
|
SHLL [/] $ cd etc
|
|
SHLL [/etc] $ cd ..
|
|
SHLL [/] $ pwd
|
|
/
|
|
@end example
|
|
|
|
@subheading CONFIGURATION:
|
|
|
|
@findex CONFIGURE_SHELL_NO_COMMAND_CD
|
|
@findex CONFIGURE_SHELL_COMMAND_CD
|
|
|
|
This command is included in the default shell command set.
|
|
When building a custom command set, define
|
|
@code{CONFIGURE_SHELL_COMMAND_CD} to have this
|
|
command included.
|
|
|
|
This command can be excluded from the shell command set by
|
|
defining @code{CONFIGURE_SHELL_NO_COMMAND_CD} when all
|
|
shell commands have been configured.
|
|
|
|
@subheading PROGRAMMING INFORMATION:
|
|
|
|
@findex rtems_shell_rtems_main_cd
|
|
|
|
The @code{cd} is implemented by a C language function
|
|
which has the following prototype:
|
|
|
|
@example
|
|
int rtems_shell_rtems_main_cd(
|
|
int argc,
|
|
char **argv
|
|
);
|
|
@end example
|
|
|
|
The configuration structure for the @code{cd} has the
|
|
following prototype:
|
|
|
|
@example
|
|
extern rtems_shell_cmd_t rtems_shell_CD_Command;
|
|
@end example
|
|
|