Difference between revisions of "bash testing variables for negative numbers or values"
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(Created page with "use test then check its exit value ($? = exit value of the previous command) $ test -4 -lt 0; echo $?; 0 $ test 4 -lt 0; echo $?; 1 category:bash category:scripting") |
Latest revision as of 21:55, 10 July 2014
use test then check its exit value ($? = exit value of the previous command)
$ test -4 -lt 0; echo $?; 0 $ test 4 -lt 0; echo $?; 1
