for loop example in bash

Example 1

for i in 1 2 3 4 5
do
echo $i
done

Example 2

for i in {1..5}

do
echo $i
done

Example 3

for ((i=0; i<=5; i++))

do
echo $i
done

Example 4

Bash v4.0+ has inbuilt support for setting up a step value using {START..END..INCREMENT} syntax:

for i in {1..10..2}

do
echo $i
done