#!/bin/sh
### writing a counting loop in sh
j=1
while [ $j -le 10 ]
do
echo $j
j=$(($j + 1))
done

#looping over a set of predefined values
for i in a b c
do
echo $i
done

# looping over files (e.g. all .c files)
for i in *.c
do
echo $i
done