Two hints:
- Given sufficient permissions in /etc/sudoers, the command /usr/bin/sudo -u foo /usr/bin/cat /home/foo/bar.txt runs cat as user foo and writes the contents of /home/foo/bar.txt to STDOUT.
- In Perl, $text=`/usr/games/fortune -a`; runs /usr/games/fortune -a and collects all text written to STDOUT in $text. See Safe Pipe Opens for a more robust variant.
Alexander
--
Today I will gladly share my knowledge and experience, for there are no sweeter words than "I told you so". ;-)