Shell Script Loop

while

#!/bin/sh

a=0

while [ $a -lt 10 ]
do
    echo $a
    a=`expr $a + 1`
done

for

#!/bin/sh

for var in 0 1 2 3 4 5 6 7 8 9
do
    echo $var
done

for FILE in $HOME/.bash*
do
    echo $FILE
done

for i in {1..25}
do 
    echo "flnuehy nhyvn" | caesar $i
done

until loop

#!/bin/sh

a=0

until [ ! $a -lt 10 ]
do
    echo $a
    a=`expr $a + 1`
done

select loop

#!/bin/ksh

select DRINK in tea cofee water juice appe all none
do
    case $DRINK in
        tea|cofee|water|all) 
            echo "Go to canteen"
            ;;
        juice|appe)
            echo "Available at home"
        ;;
        none) 
            break 
        ;;
        *) echo "ERROR: Invalid selection" 
        ;;
    esac
done