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Matts (1087)

Matts
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I work for MessageLabs [messagelabs.com] in Toronto, ON, Canada. I write spam filters, MTA software, high performance network software, string matching algorithms, and other cool stuff mostly in Perl and C.

Journal of Matts (1087)

Tuesday October 22, 2002
06:54 AM

Too geeky

[ #8515 ]

Am I too much of a perl geek? Whenever I have to do a calculation I never ever fire up the calculator - I always use:

  perl -le 'print ...'

Wbat lengths do you go to to use perl for any given problem?

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  • The script I use to upload a new version of XML::Twig to my site:

    #!/usr/bin/perl
    use XML::Twig;

    my $MIRROR_DIR = "/web/mirror/infotree/xmltwig";
    my $WEB_DIR    = "mirlin:/web/infotree/";

    my $version  = $XML::Twig::VERSION; # can't get this from the shell!
    my $tar      = "XML-Twig-$version.tar.gz";
    my $dev_text = "twig_dev.txt";
    my $dev_html = "twig_dev.html";
    my $readme   = "XML-Twig-$version.README";

    system "make clean; rm Twig.pm; perl speedup Twig.pm.slow > Twig.pm;

    --
    mirod
  • Like you, I do my calculations from the shell using Perl, but I at least turned the "perl -le 'print...'" into a shell alias to make it easier to type ;)

    --

    -- Robin Berjon [berjon.com]

    • used to use solar calculator
      then pen and paper
      then xcalc
      then perl -e 'print '
      then just perl and typed on stdin
      now bc

      wish i knew about bc before
      • I've known about bc before, but somehow I can't wrap my head around it... I know, it's probably due to my stupidity as I can't say it looks that difficult.

        Maybe I'm not good at simple things, maybe that's why I now work where I do.

        Hmmmmmm...

        --

        -- Robin Berjon [berjon.com]

  • My calculator is perl -de 1. Earlier this semester I had a bit of a disaster in software engineering class as I was sitting on the front row doing COCOMO calculations for the class and coming up with the wrong answer because I didn't understand the use of Perl's ** operator. :)

    --
    J. David works really hard, has a passion for writing good software, and knows many of the world's best Perl programmers
  • Occassionlly I use shell scripts for build processes. Usually they grow into a perl thing though. Always using a system() wrapper that dies nicely on errors.

    For calculations I use "bc". The 3 second bc guide will instruct you to use

    scale=10

    as your first command.

    I also use awk '{print $1}' once in a while instead of "perl ... (split)[0]". Why? No clue. :-) The fingers are doing it.
    --

    -- ask bjoern hansen [askbjoernhansen.com], !try; do();

  • I've been using dc for years. It got to the point where I had an xterm alias in my WindowMaker menu for dc that I used constantly.

    Unfortunately, I don't have a three-key shortcut to bring up dc on OS X yet...