Re: Doing a modulo in /bin/sh??

From: Philip Hallstrom (freebsd_at_philip.pjkh.com)
Date: 08/31/05

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    Date: Wed, 31 Aug 2005 11:18:57 -0700 (PDT)
To: Gary Kline <kline@tao.thought.org>

    > I can grab the results of "w=$date+%U)"; in C an use the modulo
    > operator; is there a way to do this is /bin/sh? ot zsh?
    >
    > tia, guys,
    >
    > gary
    >
    > #/bin/sh
    > w=$(date +%U)
    > echo "w is $w";
    > (even=$(w % 2 )); ## flubs.
    > echo "even is $even"; ## flubs.
    >
    > if [ $even -eq 0 ] ## flubs, obv'ly.
    > then
    > echo "week is even";
    > else
    > echo "week is odd";
    > fi

    Take a look at 'expr'....

    philip@foxtrot:~
    % expr 1 % 2
    1
    philip@foxtrot:~
    % expr 2 % 2
    0

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