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Re: how many lines returned from backticks

by little (Curate)
on Jun 30, 2002 at 02:47 UTC ( #178299=note: print w/ replies, xml ) Need Help??

in reply to how many lines returned from backticks


# in scalar context an array # will return the number of its elements print scalar @lines; #which leads to if (scalar @lines) { #array is not (an) empty (list) ... }
Regarding your question there is no need to worry if th earray gets newly populated each time, but if not in a block (especially loop) you might avoid such case by simply resetting the array with "@lines = ();".

Have a nice day
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