looping in shell script code example

Example 1: for loop in shell script

for i in {1..5}
do
   echo "Welcome $i times"
done

Example 2: For loop in shell script

for i in `seq 1 10`
do
	echo $i #Do something here.
done

Example 3: bash script loop

while [ <some test> ]
do
<commands>
done

Example 4: for loop iteration in shell script

#!/bin/bash
START=1
END=5
echo "Countdown"
 
for (( c=$START; c<=$END; c++ ))
do
	echo -n "$c "
	sleep 1
done
 
echo
echo "Boom!"