echo 4 +5
wat should i use to make its ans= 9 .
plz tell me the complete statement
echo $((4+9))
`expr 4 + 5` and mind the gap while you are writing this $((expression)) two ways to calcualte this..
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echo $((4+9))
`expr 4 + 5`
and mind the gap while you are writing this
$((expression))
two ways to calcualte this..