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Re^4: capturing command output

by Eliya (Vicar)
on Jan 25, 2012 at 14:17 UTC ( #949914=note: print w/replies, xml ) Need Help??

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    [1nickt]: Good morning Monks and Monkettes!
    [1nickt]: I have encountered a small code snippet I can not decipher: if ($?) { my $status = $? >> 8; ... }
    [1nickt]: Hm, found the doc
    [hippo]: >> is the bitwise shift, essentially divides the result by 256.
    [haukex]: $? and system - the exit code of a process is stored in the upper bits of $?, so >> 8 does a bit shift to get at it
    [hippo]: (truncating)

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