Assume your command will return code on STDOUT or STDERR.

Then you could simply do:
my $result = `program`; # for collecting data from STDOUT

[download]
and
my $result = `program 2>&1`; # for collecting data from STDERR.

[download]
There is no need to redirect the file handle. In the second case, the 2>&1 directive tells the shell to redirect all the output of program's STDERR (file handle 2) to STDOUT (file handle 1), so your perl program can collect the output of it.

In reply to Re: executing commands and getting output by Roger
in thread executing commands and getting output by tja_ariani

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