alias(1)							      alias(1)

NAME    [Toc]    [Back]

     alias - define or display aliases

SYNOPSIS    [Toc]    [Back]

     alias [alias_name[=string]	...]

DESCRIPTION    [Toc]    [Back]

     The alias utility creates or redefines alias definitions or writes	the
     values of existing	alias definitions to standard output. An alias
     definition	provides a string value	that replaces a	command	name when it
     is	encountered.

     An	alias definition affects the current shell execution environment and
     the execution environments	of the subshells of the	current	shell. When
     used as specified by this specification, the alias	definition will	not
     affect the	parent process of the current shell nor	any utility
     environment invoked by the	shell.

OPERANDS    [Toc]    [Back]

     The following operands are	supported:

     alias_name		 Write the alias definition to standard	output.

     alias_name=string	 Assign	the value of string to the alias alias_name.

     If	no operands are	given, all alias definitions will be written to
     standard output.

STDOUT    [Toc]    [Back]

     The format	for displaying aliases (when no	operands or only name operands
     are specified) is:

	  "%s=%s\n", name, value

     The value string will be written with appropriate quoting so that it is
     suitable for reinput to the shell.

EXIT STATUS    [Toc]    [Back]

     The following exit	values are returned:

     0	  Successful completion.

     >0	  One of the name operands specified did not have an alias definition,
	  or an	error occurred.

EXAMPLES    [Toc]    [Back]

     1.	  Change ls to give a columnated, more annotated output:

	  alias	ls="ls -CF"






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alias(1)							      alias(1)



     2.	  Create a simple "redo" command to repeat previous entries in the
	  command history file:

	  alias	r='fc -s'

     3.	  Use 1K units for du:

	  alias	du=du -k

     4.	  Set up nohup so that it can deal with	an argument that is itself an
	  alias	name:

	  alias	nohup="nohup "

SEE ALSO    [Toc]    [Back]

     sh(1)


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