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unalias(1)							   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 com-
       mand described here, you	must specify the full path /usr/bin/unalias.
       See the csh(1) reference	page for a description of the built-in com-
       mand.

STANDARDS

  Interfaces documented	on this	reference page conform to industry standards
  as follows:

  unalias:  XCU5.0

  Refer	to the standards(5) reference page for more information	about indus-
  try standards	and associated tags.

OPTIONS

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

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 multi-
      byte characters in arguments).

  LC_MESSAGES
      Determines the locale used to affect the format and contents of diag-
      nostic 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)