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Re: GREP Question

by c-era (Curate)
on Apr 23, 2001 at 17:01 UTC ( #74701=note: print w/replies, xml ) Need Help??


in reply to GREP Question

This isn't a perl question, but this will work: grep /\[1\]/ filename

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Re: Re: GREP Question
by suaveant (Parson) on Apr 23, 2001 at 17:46 UTC
    It will almost work, but you need a comma...
    grep /\[1\]/, filename;
    Update voted down? Why? ok, it should probably be @filename, but I just copied it, you do need the comma.
                    - Ant

      Probably the downvote because, as indicated (albeit somewhat indirectly), the response concerns unix grep(1), not perl grep, so the comma is not needed. Were it to be in perl, and had the file been read into an array using @file = <>, then grep /\[l\]/, @file would be correct, but from the command line, it ain't.

      However, the original response is also wrong: since we're on the command line, the slashes are read as part of the regular expression, not as a pattern delimiter, so what you actually want is either

      #!/usr/bin/perl open FH, "filename" or die "couldn't open file.\n"; @filename = <>; print grep /\[l\]/,@filename;
      or (note single quotes)
      % grep '\[l\]' filename
      You will note which of them is simpler.

      If God had meant us to fly, he would *never* have give us the railroads.
          --Michael Flanders

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