using korn shell

[intp]

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

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

[A. Clay Stephenson · Accepted solution]

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.

[Jeff_Traigle]

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 ]

[intp]

thanks all.