topic Re: using korn shell in Operating System - HP-UX

using korn shell

intp — Wed, 21 Jun 2006 09:34:55 GMT

using korn shell how to code the following without nested if statements.

if ((a=1 OR b=3) AND (c=4))

Re: using korn shell

A. Clay Stephenson — Wed, 21 Jun 2006 09:45:00 GMT

typeset -i A=1
typeset -i B=6
typeset -i C=4

if [[ ( ${A} = 1 || ${B} = 3 ) && ${C} = 4 ]]
then
echo "True"
else
echo "False"
fi

The syntax is different if you use the more traditional '[ ]' (single bracket) syntax because that invokes the external test command rather than ksh's internal evaluation.

Re: using korn shell

Jeff_Traigle — Wed, 21 Jun 2006 09:46:12 GMT

I would do it like this. It works for any of the Bourne-like shells.

if [ $ $a -eq 1 -o $b -eq 3 $ -a $c -eq 4 ]

Re: using korn shell

intp — Wed, 21 Jun 2006 09:53:04 GMT

thanks all.