unalias - Removes alias definitions
The C shell has a built-in version of the unalias command.
If you are using the C shell, and want to guarantee that
you are using the command described here, you must specify
the full path /usr/bin/unalias. See the csh(1) reference
page for a description of the built-in command.
Interfaces documented on this reference page conform to
industry standards as follows:
Refer to the standards(5) reference page for more information
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Removes all alias definitions from the current shell execution
The name of an alias to be removed.
The unalias utility removes the definition for each alias
name specified. The aliases are removed from the current
shell execution environment.
The following exit values are returned: Successful completion.
One of the alias-name operands specified did not
represent a valid alias definition, or an error occurred.
ENVIRONMENT VARIABLES [Toc] [Back]
The following environment variables affect the execution
of unalias: Provides a default value for the internationalization
variables that are unset or null. If LANG is
unset or null, the corresponding value from the default
locale is used. If any of the internationalization variables
contain an invalid setting, the utility behaves as
if none of the variables had been defined. If set to a
non-empty string value, overrides the values of all the
other internationalization variables. Determines the
locale for the interpretation of sequences of bytes of
text data as characters (for example, single-byte as
opposed to multibyte characters in arguments). Determines
the locale used to affect the format and contents of diagnostic
messages written to standard error. Determines the
location of message catalogues for the processing of
Commands: alias(1), csh(1)
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