Bash

Link

https://www.gnu.org/software/bash/

• An sh-compatible [shell](…/UNIX shells/) that incorporates useful features from the Korn shell (ksh) and the C shell (csh)

Resources

• Bash Shell: Take Control of PS1, PS2, PS3, PS4 and PROMPT_COMMAND

  Your interaction with Linux Bash shell will become very pleasant, if you use PS1, PS2, PS3, PS4, and PROMPT_COMMAND effectively. PS stands for prompt statement. This article will give you a jumpstart on the Linux command prompt environment variables using simple examples.

Shortcuts

Scripting

![[How To Automate Your Dev Setup#^e00c9b]]

• if ! command >/dev/null 2>&1; then ... fi:
  • If command (run without output) returns an exit code greater than 0, then …

if statements

![[Bash Scripting for Beginners - Complete Guide to Getting Started - If Statements (Part 5)#Notes]]