The while Loop – Linux Shell Programming

January 25, 2020 eduguru Linux Shell Programming, loop in shell program, shell program, shell program example, The while Loop, The while Loop - Linux Shell Programming

The while Loop – Linux Shell Programming

While loops repeat statements as long as the next Unix command is successful.

For Example :

#!/bin/sh
i=1
sum=0
while [ $i -le 100 ]; do
sum=`expr $sum + $i`
i=`expr $i + 1`
done
echo The sum is $sum.

while loop in linux shell program