Created: December-18, 2021 . If you want to do something more elaborate, you could create a script and show a more clear indication that the loop condition became true: #!/bin/bash while [ ! bash - How to ping in linux until host is known? - Server Fault Another useful application of a while loop is to combine it with the read command to have access to columns (or fields) quickly from a text file and perform some actions on them.. Share. Use the true command to set an infinite loop: #!/bin/bash while true do echo "Do something; hit [CTRL+C] to stop!" done. Topics This example code will prompt for confirming once if you give wrong input, the program will exit with status 1. docker run bash command sleep. Say, for example, that you have a script that creates a temporary file. bash - "while :" vs. "while true" - Stack Overflow The while executes a piece of code if the control expression is true, and only stops when it is false (or a explicit break is found within the executed code. The Bash Trap Command | Linux Journal - that other guy. While Loops. Bash: Exiting while true loop when terminal is not the focus window. Break and continue statements are bash builtin and used to alter the flow of your loops. There are 3 basic loop constructs in Bash scripting, for loop, while loop, and until loop. They have the following format: while . bash script while loop if variable is true Ask Question Asked 10 years, 3 months ago Modified 10 years, 3 months ago Viewed 30k times 2 I have the following bash script: while [ $loop == "true" ] do //do stuff done but it says error at [. What is it? You can easily see that the numbers printed on the terminal are from 1 to 8 and the number "9" is not printed which means that our "while" loop has terminated successfully by using the "break" command. done. how to exit a while true loop - UNIX GitHub - while-true-do/bash-prompt: A bash prompt that shows ... The syntax of a while loop in BASH is something like below: