03-01-2012
one line command to change mode only if necessary
hi,
sorry for posting this for a quick answer.
Is there a one line command to change permissions on files in a directory to a given mode (say 554) and only for those files that do not already have that mode?
Running chmod updates the last access/modified timestamp on the files, and i want to only run chmod on those that do not already have permissions 554 set
psudeo code:
for files where mode <> 554, do chmod 554
Thanks,
-srinivas yelamanchilli
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LEARN ABOUT DEBIAN
explain_chmod_or_die
explain_chmod_or_die(3) Library Functions Manual explain_chmod_or_die(3)
NAME
explain_chmod_or_die - change permissions of a file and report errors
SYNOPSIS
#include <libexplain/chmod.h>
void explain_chmod_or_die(const char *pathname, int mode);
DESCRIPTION
The explain_chmod_or_die function is used to call the chmod(2) system call. On failure an explanation wiil be printed to stderr, obtained
from explain_chmod(3), and the the process terminates by calling exit(EXIT_FAILURE).
This function is intended to be used in a fashion similar to the following example:
explain_chmod_or_die(pathname, mode);
pathname
The pathname, exactly as to be passed to the chmod(2) system call.
mode The mode, exactly as to be passed to the chmod(2) system call.
Returns:
This function only returns on success. On failure, prints an explanation and exit(EXIT_FAILURE)s.
COPYRIGHT
libexplain version 0.52
Copyright (C) 2008 Peter Miller
AUTHOR
Written by Peter Miller <pmiller@opensource.org.au>
explain_chmod_or_die(3)