use Perl

• File::Tail options (Score:2)

  by jdavidb (1361)

  To be honest, I cut and paste File::Tail options out of a two year old program a co-op developed. I have little (retained) knowledge of what they do. I do know that the module doesn't work exactly the way I expect if I don't use those options, and I do seem to recall that the options that make it do what I want are not the options I would expect.

  --
  J. David works really hard, has a passion for writing good software, and knows many of the world's best Perl programmers
  • Re:File::Tail options (Score:2)

    by jdavidb (1361)

    By the way, while you're thinking about writing your own, I have a File::Tail::Seekable subclass I created for one application. That might be a common desire in any language.

    --
    J. David works really hard, has a passion for writing good software, and knows many of the world's best Perl programmers
    • Re:File::Tail options (Score:2)

      by djberg96 (2603) on 2002.07.31 14:37 (#11267) Journal

      Thanks for the info. While looking at the source, I was befuddled by some of the things he does, but perhaps it will make more sense to me later. Perhaps it's because I settled on a line based approach to reading data over a character based one.

      Here's a brief example of usage in case you're interested:

      t = Tail.new("somefile.txt")
      
      # To imitate 'tail -f', use a block
      t.tail do |line|
         puts line
      end
      
      # To simply grab the last X lines, don't use a block
      a = t.tail(20)
      puts a

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