Bash loop examples

For Loop Example 1

#!/bin/bash
# Date: 15.04.08
# Author: bash@roshankarki.com.np
# Purpose: Demonstrate for loop
clear
for item in usa india china japan nepal
do
echo $item
done
#END

For Loop Example 2

#!/bin/bash
# Date: 15.04.08
# Author: bash@roshankarki.com.np
# Purpose: Demonstrate for loop
clear
for i in 1 2 3 4 5
do
echo $i
done
#END

For Loop Example 3

#!/bin/bash
# Date: 15.04.08
# Author: bash@roshankarki.com.np
# Purpose: Demonstrate for loop
clear
for i in `seq 100`
do
echo $i
done
#END

For Loop Example 4

#!/bin/bash
# Date: 15.04.08
# Author: bash@roshankarki.com.np
# Purpose: Demonstrate for loop
clear
for file in `ls *`
do
echo $file
done
#END

While Loop Example

#!/bin/bash
# Date: 15.04.08
# Author: bash@roshankarki.com.np
# Purpose: Demonstrate until loop
clear
c=1
while [ $c -gt 5 ]
do
echo Welocme
let "c += 1"
done
#END

gt >
lt <
eq =
le <=
ge >=
nq !=


Until Loop Example

#!/bin/bash
# Date: 15.04.08
# Author: bash@roshankarki.com.np
# Purpose: Demonstrate while loop
clear
c=1
while [ $c -lt 5 ]
do
echo Welocme
let "c += 1"
done
#END