'resides in the same directory' and system("../b.pl"); are likely the key bits of information. If display.pm is in the same directory as b.pl then when b.pl is executed in c.pl's context the current working will not be appropriate and the search for display.pm will fail.

True laziness is hard work

In reply to Re: System Call Error by GrandFather
in thread System Call Error by gdluce

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