RTEMS 4.10.2 On-Line Library

File and Directory Commands mv - move files

RTEMS Shell User's Guide

3.2.3: mv - move files

SYNOPSYS:

mv [-fiv] source_file target_file
mv [-fiv] source_file... target_file

DESCRIPTION:

In its first form, the mv utility renames the file named by the source operand to the destination path named by the target operand. This form is assumed when the last operand does not name an already existing directory.

In its second form, mv moves each file named by a source operand to a destination file in the existing directory named by the directory operand. The destination path for each operand is the pathname produced by the concatenation of the last operand, a slash, and the final pathname component of the named file.

The following options are available:

-f: Do not prompt for confirmation before overwriting the destination path.
-i: Causes mv to write a prompt to standard error before moving a file that would overwrite an existing file. If the response from the standard input begins with the character 'y', the move is attempted.
-v: Cause mv to be verbose, showing files as they are processed.

The last of any -f or -i options is the one which affects mv's behavior.

It is an error for any of the source operands to specify a nonexistent file or directory.

It is an error for the source operand to specify a directory if the target exists and is not a directory.

If the destination path does not have a mode which permits writing, mv prompts the user for confirmation as specified for the -i option.

Should the rename call fail because source and target are on different file systems, mv will remove the destination file, copy the source file to the destination, and then remove the source. The effect is roughly equivalent to:

rm -f destination_path && \
cp -PRp source_file destination_path && \
rm -rf source_file

EXIT STATUS:

The mv utility exits 0 on success, and >0 if an error occurs.

NOTES:

NONE

EXAMPLES:

SHLL [/] mv /dev/console /dev/con1

CONFIGURATION:

This command is included in the default shell command set. When building a custom command set, define CONFIGURE_SHELL_COMMAND_MV to have this command included.

This command can be excluded from the shell command set by defining CONFIGURE_SHELL_NO_COMMAND_MV when all shell commands have been configured.

PROGRAMMING INFORMATION:

The mv command is implemented by a C language function which has the following prototype:

int rtems_shell_rtems_main_mv(
  int    argc,
  char **argv
);

The configuration structure for the mv has the following prototype:

extern rtems_shell_cmd_t rtems_shell_MV_Command;

ORIGIN:

The implementation and portions of the documentation for this command are from NetBSD 4.0.

RTEMS Shell User's Guide