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Re^2: move down 2 lines in file?

by halley (Prior)
on Jul 11, 2008 at 18:46 UTC ( #697057=note: print w/replies, xml ) Need Help??

in reply to Re: move down 2 lines in file?
in thread move down 2 lines in file?

Changing $. does not move the file pointer. The only way to skip ahead without actually reading would be to use seek() which doesn't mix well with buffered variable-length line-oriented operations.

[ e d @ h a l l e y . c c ]

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Re^3: move down 2 lines in file?
by Lawliet (Curate) on Jul 11, 2008 at 19:30 UTC

    Oh, alright. I thought my idea was pretty cool though~

    Can you (or anyone) confirm if the next if... method works?

    <(^.^-<) <(-^.^<) <(-^.^-)> (>^.^-)> (>-^.^)>
      Yes, you could do it like that:-

      my $linesToSkip = 2; while ( <FILE> ) { next if 0 < $linesToSkip --; # Do something here with the lines of interest. ... }

      I'd rather segregate the discarding of header lines (or whatever) from the processing of lines I'm interested in.

      my $linesToSkip = 2; my $discard = <FILE> for 1 .. $linesToSkip; while ( <FILE> ) { # Do something here with the lines of interest. ... }

      I hope this is of interest.



      Update: Fixed typo.

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