As in the response to your hijack post in the other thread
$ENV{PATH}

Oh, I just noticed too, that I accidentally inserted a \ in front of the first paren.

Although, to tell you the truth, I don't know if yours is truely measurably more effecient (unless the string...

s/^\s*\(.+)\s*$/$1/

Well, you can remove files and directories from your path with a single find command as follows:

find /path/to/backup/root -mtime 4 -exec rm -f {} \;

If you also want a list of files deleted in...