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Is it possible to run an external process from Perl, capture its stderr, stdout AND the process exit code?
I seem to be able to do combinations of these, e.g. use backticks to get stdout, IPC::Open3 to capture outputs, and system() to get exit codes.
How do you capture stderr, stdout, and the exit code all at once?
If you reread the documentation for IPC::Open3, you’ll see a note that you should call waitpid to reap the child process. Once you do this, the status should be available in
$?. The exit value is$? >> 8. See$?in perldoc perlvar.