Overview
unalias is a built-in command to delete aliases created in the shell. Using this command, you can remove aliases that are no longer needed, reverting the shell's behavior to its original state, or unbind aliases that conflict with other commands.
Key Features
- Remove specific aliases
- Remove all aliases in bulk
- Affects only the current shell session
Main Options
The unalias command provides simple options used for removing aliases.
Removal Methods
Generated command:
Try combining the commands.
Description:
`unalias` Executes the command.
Combine the above options to virtually execute commands with AI.
Usage Examples
Demonstrates various ways to remove aliases using the unalias command.
Remove a Single Alias
unalias llRemoves the alias previously defined as 'll'.
Remove Multiple Aliases Simultaneously
unalias ll lsRemoves both 'll' and 'ls' aliases at the same time.
Remove All Aliases
unalias -aRemoves all aliases defined in the current shell session.
Define and Verify Alias Removal
alias myls='ls -l'
alias
unalias myls
aliasDefines an alias, removes it, and then verifies its removal using the 'alias' command.
Tips & Precautions
Useful tips and points to consider when using the unalias command.
Permanent Alias Removal
unalias only affects the current shell session. To permanently remove an alias, you must edit the shell configuration file where the alias is defined (e.g., ~/.bashrc, ~/.zshrc) and delete that line. To apply the changes, you need to restart the shell or reload the configuration file, for example, by running 'source ~/.bashrc'.
- Delete the alias definition from the shell configuration file (e.g., .bashrc, .zshrc)
- Restart the shell or use the `source` command to apply changes
Check Current Alias List
Before using unalias, you can check the list of currently defined aliases by simply running the 'alias' command without any arguments.
- Check all currently defined aliases with the `alias` command