I'd definitely do it with File::Find. Since you already have an array of files to keep, I'd convert this to a hash (paths/names to keep as they keys). Then use File::Find to loop through the filesystem and check to see if each file that File::Find locates is in the hash. If it is not in the hash, delete it.

Here's a simple codeup of my recomendation.... You should test it THOUROUGHLY before uncommenting the unlink line.. 

#!/usr/bin/perl -w


use strict;
use File::Find;

my %keep;

# load %keep with the filenames you want to keep...
# $keep{/bin/sh}=1;
# $keep{/sbin/ifconfig}=1;
# etc....

find(\&checkfile,'/');

sub checkfile{
  my $fname="$File::Find::dir/$_";
  if(!defined $keep{$fname}){
    print "deleting $fname\n";
#    unlink $fname;
  }
}

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In reply to Re: Hard disc pruner by lhoward
in thread Hard disc pruner by dmtelf

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