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WEB:
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#!/bin/ksh
typeset -i i_var
i_var=50
echo $i_var

let i_var=$i_var+10
echo $i_var

let i_var=$i_var/3
echo $i_var

let i_var=$i_var*5
echo $i_var

i_mod=$(( 11 % 3 ))
echo $i_mod
2

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