Bash

The bourne again shell (BASH) is the most common linux shell.

Documentation

official docs

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

Builtin Docs

Info pages are the easiest way to grab information about bash builtins.

info bash   # show infopage
/readarray  # searchterm

Bash Libraries

Programs: shell libraries

Basics

bash configuration

bash basics

bash variables

bash datatypes

bash modules

bash functions

bash functional

bash arguments

bash operators

bash conditionals

bash loops

bash error handling

bash unix signals

bash matching

bash streams

bash filesystem

bash datetime

bash ansi escape codes

bash profiling

bash testing

Other

bash tricks

Programs: coreutils