Removes alias definitions.
unalias AliasName ...
The unalias command removes the definition for each alias name specified, or removes all alias definitions if the -a flag is used. Alias definitions are removed from the current shell environment.
Since the unalias command affects the current shell execution environment, it is provided as a Korn shell or POSIX shell regular built-in command.
|-a||Removes all alias definitions from the current shell environment.|
The following exit values are
|>0||One of the alias names specified did not represent a valid alias definition, or an error occurred.|
|/usr/bin/ksh||Contains the Korn shell unalias built-in command.|
|/usr/bin/unalias||Contains the unalias command.|
The alias command, csh command, ksh command.