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Re: Beginner question - understanind a loop with a file handle

by Generoso (Vicar)
on Oct 15, 2010 at 01:28 UTC ( #865378=note: print w/ replies, xml ) Need Help??


in reply to Beginner question - understanind a loop with a file handle

# Read each line of file supposing a number per line # while <FILE> { # # the += operator will add each number read to #the accumulated # $total += $_; # # $_ contains the line just read of FILE # ++ will increment 1 for each line giving a total # count of lines at the end of the loop # $count++; } # # at the end of the loop you have total = sum of lines # and count how many lines where read # my $average = $total/$count; # # the formula above calculates the average

Now Can you see the code? Any line that starts with # is a comment.


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Re^2: Beginner question - understanind a loop with a file handle
by GrandFather (Cardinal) on Oct 16, 2010 at 06:52 UTC

    Damn, I'm sure there is supposed to be code in there some where, but for the life of me I can't see it!

    True laziness is hard work

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