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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:  XCU5.0

  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)

Index for Section 1

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