Shell Scripting while loopLinux scripting while loop is similar to C language while loop. There is a condition in while. And commands are executed till the condition is valid. Once condition becomes false, loop terminates. Syntax: Syntax of while loop is shown in the snapshot below, Example:We have shown the example of printing number in reverse order. Output is displayed in the below snapshot, while infinite loop:Infinite loop is also called endless loop. It is made with while true (it means condition will always be true) or while : (it means an empty expression), where colon (:) is equivalent to no operation. Look at the above snapshot, this script includes while truesyntax. Look at the above snapshot, this script includes while: syntax. Both of them display the same output.
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