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Systems & Data Center · Foundational

Bash

The Bourne Again Shell, the default command interpreter and scripting language on most Linux distributions.

Definition

Bash provides command history, tab completion, job control, variables, functions and control structures. Startup files include ~/.bash_profile for login shells and ~/.bashrc for interactive non-login shells.

Example

Adding alias ll='ls -l' to ~/.bashrc creates a persistent shortcut.

Exam tip

Know which startup file loads for login versus non-login shells.

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