105.1 – Customize and use the shell environment

Weight

4

Description

Candidates should be able to customize shell environments to meet users’ needs. Candidates should be able to modify global and user profiles.

Key Knowledge Areas

• Set environment variables (e.g. PATH) at login or when spawning a new shell.

• Write Bash functions for frequently used sequences of commands.

• Maintain skeleton directories for new user accounts.

• Set command search path with the proper directory.

Files, Terms, and Utilities

• .

• source

• /etc/bash.bashrc

• /etc/profile

• env

• export

• set

• unset

• ~/.bash_profile

• ~/.bash_login

• ~/.profile

• ~/.bashrc

• ~/.bash_logout

• function

• alias