what is bash?

• Bash is a widely used shell, available on many platforms.
• Short for bourne Again Shell, in reference to the earlier Bourne shell.
• An interactive command-line shell that also allows commands to be combined into script files,which can be run like programs.
• combining commands into scripts saves times and reduce errors.
• Bash is best for writing small-to medium-size scripts that will run on Linux Systems.
• if your workflow can be run as commands in bash terminal, consider making scripts
• if your workflow requires other more specialized tools, bash may not be the best choice for automation.

Bash is pre installed on, or is available to be installed on, most Linux distributions.

$ bash --version GNU bash, version 5.0.17(1)-release (x86_64-pc-linux-gnu) Copyright (C) 2019 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later http://gnu.org/licenses/gpl.html

This is free software; you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.

$ echo $SHELL /usr/bin/bash

Creating a Linux VM or PC

• Learning Virtualbox

• Learning Ubuntu Desktop

• Building an Ubuntu Server

• Learning Fedora Linux

• Learning Debian Linux

• Bash is primarily used on Linux Systems, but available on MacOS and Windows Systems.

• I recommended you use a Linux System, Vm, or Cloud instance to learn bash.

• The included version of bash on MacOs is Extremely outdated and may be removed in future.

• To run Bash on windows, Use Git bash or WSL(or Linux VM).