But this script.pl file also gets changed... the directory path is /main/script.pl -- Script file. /main/test/*.pl files -- perl files.
Let's suppose you write your script file like this (I prefer using curly braces around regexes when the slash is part of the pattern or replacement):
#!/usr/bin/perl
use strict;
use warnings;
# check for valid usage (user must provide a directory path):
(@ARGV == 1 and -d $ARGV[0]) or die "Usage: $0 /path/to/scripts\n";
my $path = shift;
{
local $/; # set input record separator to undef (slurp-mode read
+ing)
for my $file (<$path/*.pl>) # use a file glob
{
open( F, "<", $file ) or next;
$_ = <F>;
close F;
s{/usr/bin/perl}{/test/test/test}g;
s{/ggg/ggg/www}{/zzz/zzz/zzz}g;
s{/jjj/jjj/jjj}{/aaa/aaa/aaa}g;
open( F, ">", $file ) or die "$file: $!";
print F;
close F;
}
}
When you put that script file in a directory other than the one that you provide as a command-line arg when you run it (or if you put it in the same directory, but give it a name that does not end in ".pl"), the script will not edit/rewrite itself. | 