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unalias(1)

NAME

unalias - Removes alias definitions

SYNOPSIS

unalias alias-name... unalias -a Note 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.

STANDARDS

Interfaces documented on this reference page conform to industry standards as follows: unalias: XPG4, XPG4-UNIX Refer to the standards(5) reference page for more information about industry standards and associated tags.

OPTIONS

-a Removes all alias definitions from the current shell execution environment.

OPERANDS

alias-name The name of an alias to be removed.

DESCRIPTION

The unalias utility removes the definition for each alias name specified. The aliases are removed from the current shell execution environment.

EXIT STATUS

The following exit values are returned: 0 Successful completion. >0 One of the alias-name operands specified did not represent a valid alias definition, or an error occurred.

ENVIRONMENT VARIABLES

The following environment variables affect the execution of unalias: LANG 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. LC_ALL If set to a non-empty string value, overrides the values of all the other internationalization variables. LC_CTYPE 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). LC_MESSAGES Determines the locale used to affect the format and contents of diagnostic messages written to standard error. NLSPATH Determines the location of message catalogues for the processing of LC_MESSAGES.

SEE ALSO

Commands: alias(1), csh(1) Standards: standards(5)