-- Perl 5.8.6 documentation --
chmod
  • chmod LIST
  • Changes the permissions of a list of files. The first element of the list must be the numerical mode, which should probably be an octal number, and which definitely should not a string of octal digits: 0644 is okay, '0644' is not. Returns the number of files successfully changed. See also "oct", if all you have is a string.

        $cnt = chmod 0755, 'foo', 'bar';
        chmod 0755, @executables;
        $mode = '0644'; chmod $mode, 'foo';      # !!! sets mode to
                                                 # --w----r-T
        $mode = '0644'; chmod oct($mode), 'foo'; # this is better
        $mode = 0644;   chmod $mode, 'foo';      # this is best

    You can also import the symbolic S_I* constants from the Fcntl module:

        use Fcntl ':mode';
    
        chmod S_IRWXU|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH, @executables;
        # This is identical to the chmod 0755 of the above example.