While loops

The code block will execute the lines or instructions within it while a condition is met.

** Syntax **

while <CONDITION>; do
	INSTRUCTIONS
done

Let's look at an example:

CONT=0
while [ $CONT -lt 5 ]; do
    echo The current state of the counter is $CONT
    CONT=$( ($CONT+1) )
done

Where the output will be:

Iteration	#	CONT	Condition	Result
1	0	`[0 -tl 5]`	✓	The current state of the counter is 0
2	1	`[1 -tl 5]`	✓	The current state of the counter is 1
3	2	`[2 -tl 5]`	✓	The current state of the counter is 2
4	3	`[3 -tl 5]`	✓	The current state of the counter is 3
5	4	`[4 -tl 5]`	✓	The current state of the counter is 4
6	5	`[5 -tl 5]`	X	< Exits the loop >