Apr 20, 2018 · Uses of in Bash (Line Feed) is used as a newline character for Unix based systems. Below is a simple example to use newline character in bash shell scripts. Nov 18, 2019 · Introduction to the printf Command. The bash scripting language supports the printf command, which allows you to customize the terminal output of your scripts. Its roots are in the C programming language. You can read about C’s printf function by accessing your operating system’s manual pages with the following command: man 3 printf. Bash shell is used for a lot of things in Linux systems. Most of the applications run with bash. Bash is a shell but provides an environment that can be used to programming. Variables are core of the programming. Bash provides variables too. There are default variables as well as user defined variables. Generating Output With echo command. Use echo command to display a line of text or a variable value. It offers no formatting option. It is a good command to display a simple output when you know that the variable's contents will not cause problems. For most uses, printf is preferable. echo Command Examples Mar 22, 2013 · Formatting an echo command output can be a nightmare and very often impossible task to do. The solution to this can be a good old friend of all C/C++ the “printf” tool. printf can be just as easily implemented into a bash script is it is used with C/C++ programs.