You may wish to read perlvar in addition to the system documentation already mentioned. Search for $?.

Note too that if backticks fails it will set the special variable $!.

True laziness is hard work

In reply to Re^3: How to know the exit status of sub-commands running with backticks in Perl. by GrandFather
in thread How to know the exit status of sub-commands running with backticks in Perl. by kkurnala

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