unalias
Remove aliases set by alias
Summary
unalias [-a] name [name ...]
The main purpose
Options
-a: Delete all defined aliases.
Parameters
name: Specifies one or more defined aliases to be deleted.
return value
unalias returns true unless the alias you want to remove is undefined.
example
# Delete all defined aliases
unalias -a
# Delete defined aliases (assuming the following aliases exist in the current environment)
unaliasvi
unalias ls grep
Incorrect usage
Notice
-
Please note when executing the script:
If a bash script executed using the source command executes the alias or unalias command, it may have an impact on the alias settings of the terminal environment; the alias settings of the terminal environment may also change the running results;
Bash scripts called through sh or scripts directly run by the current user with execution permissions are not affected by the alias of the terminal environment.
-
To view and set aliases, please view the
aliascommand. -
This command is a built-in bash command. For related help information, please see the
helpcommand.
