How to capture both STDOUT and STDERR in two different variables using Backticks in Perl

Question

Let\'s say I want to run an external program from my script with backticks and at the same time I want to capture both STDOUT and STDERR but in two different variables. How can

Answer 1

The only way to do this with backticks is to redirect to a file inside the shell command:

   my $cmd = `snmpwalk -v $version -c $community $hostname $oid 2>error.dat`;

If you want to capture the STDERR inside your script, you need IPC::Open3 instead of backticks