LPIC-1 102 105.1 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.

Terms and Utilities

• /etc/profile
• env
• export
• set
• unset
• ~/.bash_profile
• ~/.bash_login
• ~/.profile
• ~/.bashrc
• ~/.bash_logout
• function
• alias