how to detect broken pipe ?

From: funtoosh (a_gilotra_at_yahoo.com)
Date: 12/20/03

  • Next message: Hale: "h2xs" 
    Date: 19 Dec 2003 22:11:38 -0800

    Hi

    Scenario:

    I have a shell script e.g. a.bash
    This script wraps a program called "generate" like this:

    generate > /tmp/y.txt 2>&1 # both stdout and stderr r redirected to
    y.txt

    Now , I have perl script e.g. myPerl.pl and I modify a.bash such that:

    generate | perl myPerl.pl # pipe output from "generate" to the perl
    script.

    And in myPerl.pl, I wrote this :

    sub whatSignal { print "caught ",shift, "\n" };
    $SIG($_}=\ &whatSignal for keys %SIG

    And now I run a.bash in one xterm:
    Following happens:
    When press ctrl-C, it is caught.

    But when I kill pid of program "generate" from a different xterm, my
    script doesnt detect "broken pipe" ?

    Comments ?

  • Next message: Hale: "h2xs"

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