Shell Scripting Loop: While

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While Loop

Syntax for while loop:

           while [ condition ]
           do
                 statement1
                 statement2
           done

While loop example:

#!/usr/bin/env bash            
                
# While loop example                       
COUNTER=0       
                
while [ $COUNTER -le 5 ]                      
do                      
 echo "COUNT = $COUNTER"       
                
 ((COUNTER++))       
                
done       
                               
echo "while loop completed."       

Output:

COUNT = 0
COUNT = 1
COUNT = 2
COUNT = 3
COUNT = 4
COUNT = 5
while loop completed.

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