Windows PowerShell command on Get-command alias

Manual Pages for UNIX Operating System command usage for man alias

User Commands alias(1)

NAME

alias, unalias - create or remove a pseudonym or shorthand

for a command or series of commands

SYNOPSIS

/usr/bin/alias [alias-name[= string...]]

/usr/bin/unalias alias-name...

/usr/bin/unalias -a

csh

alias [name [def]]

unalias pattern

ksh

alias [-tx] [name[= value]...]

unalias name...

unalias [-a]

ksh93

alias [-ptx] [name[= value]...]

unalias [-a] [name...]

DESCRIPTION

The alias and unalias utilities create or remove a pseudonym

or shorthand term for a command or series of commands, with

different functionality in the C-shell and Korn shell

environments.

/usr/bin/alias

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.

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User Commands alias(1)

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 docu-

ment, the alias definition does not affect the parent pro-

cess of the current shell nor any utility environment invoked by the shell.

/usr/bin/unalias

The unalias utility removes the definition for each alias

name specified. The aliases are removed from the current

shell execution environment. The -a option removes all alias

definitions from the current execution environment. csh

alias assigns def to the alias name. The assigned def is a

list of words that can contain escaped history-substitution

metasyntax. name is not allowed to be alias or unalias. If

def is omitted, the alias name is displayed along with its

current definition. If both name and def are omitted, all

aliases are displayed.

Because of implementation restrictions, an alias definition

must have been entered on a previous command line before it can be used.

unalias discards aliases that match (filename substitution)

pattern. All aliases can be removed by `unalias *'.

ksh

alias with no arguments prints the list of aliases in the

form name=value on standard output. An alias is defined for

each name whose value is specified. A trailing space in

value causes the next word to be checked for alias substitu-

tion. The -t flag is used to set and list tracked aliases.

The value of a tracked alias is the full pathname

corresponding to the specified name. The value becomes unde-

fined when the value of PATH is reset but the aliases

remained tracked. Without the -t flag, for each name in the

argument list for which no value is specified, the name and

value of the alias is printed. The -x flag is used to set or

print exported aliases. An exported alias is defined for

scripts invoked by name. The exit status is non-zero if a

name is specified, but no value, and no alias has been

defined for the name.

The aliass specified by the list of names can be removed

from the alias list with unalias.

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User Commands alias(1)

ksh93

alias creates or redefines alias definitions or writes the

existing alias definitions to standard output.

An alias definition provides a string value that replaces a

command name when the command is read. Alias names can con-

tain any printable character that is not special to the

shell. If an alias value ends in a SPACE or TAB, the word

following the command name the alias replaces is also

checked to see whether it is an alias.

If no names are specified, the names and values of all

aliases are written to standard output. Otherwise, for each

name that is specified, and =value is not specified, the

current value of the alias corresponding to name is written

to standard output. If =value is specified, the alias name

is created or redefined.

alias is built-in to the shell as a declaration command so

that field splitting and pathname expansion are not per-

formed on the arguments. Tilde expansion occurs on value. An

alias definition only affects scripts read by the current

shell environment. It does not affect scripts run by this shell.

unalias removes the definition of each named alias from the

current shell execution environment, or all aliases if -a is

specified. It does not affect any commands that have already been read and subsequently executed. OPTIONS

The following option is supported by unalias:

-a Removes all alias definitions from the current shell

execution environment. ksh

The following option is supported by alias:

-t Sets and lists tracked aliases.

ksh93

The following options are supported by alias:

-p Causes the output to be in the form of alias commands

that can be used as input to the shell to recreate the

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User Commands alias(1)

current aliases.

-t Specifies tracked aliases.

Tracked aliases connect a command name to the

command's pathname, and are reset when the PATH vari-

able is unset. The tracked aliases feature is now

obsolete.

-x Ignored, this option is obsolete.

The following option is supported by unalias:

-a Causes all alias definitions to be removed. name

operands are optional and ignored if specified. OPERANDS The following operands are supported:

alias

alias-name Write the alias definition to standard output.

unalias

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

alias-name=string Assign the value of string to the alias

alias-name.

If no operands are specified, all alias definitions are

written to standard output.

OUTPUT

The format for displaying aliases (when no operands or only

name operands are specified) is:

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

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

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User Commands alias(1)

EXAMPLES

Example 1 Modifying a Command's Output This example specifies that the output of the ls utility is columnated and more annotated:

example% alias ls="ls -CF"

Example 2 Repeating Previous Entries in the Command History File

This example creates a simple "redo" command to repeat pre-

vious entries in the command history file:

example% alias r='fc -s'

Example 3 Specifying a Command's Output Options This example provides that the du utility summarize disk output in units of 1024 bytes:

example% alias du=du -k

Example 4 Dealing with an Argument That is an Alias Name This example sets up the nohup utility so that it can deal

with an argument that is an alias name:

example% alias nohup="nohup "

ENVIRONMENT VARIABLES See environ(5) for descriptions of the following environment

variables that affect the execution of alias and unalias:

LANG, LC_ALL, LC_CTYPE, LC_MESSAGES, and NLSPATH.

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User Commands alias(1)

EXIT STATUS The following exit values are returned: 0 Successful completion.

alias

>0 One of the alias-name operands specified did not have

an alias definition, or an error occurred.

unalias

>0 One of the alias-name operands specified did not

represent a valid alias definition, or an error

occurred.

ATTRIBUTES

See attributes(5) for descriptions of the following attri-

butes: csh, ksh

____________________________________________________________

| ATTRIBUTE TYPE | ATTRIBUTE VALUE |

|_____________________________|_____________________________|

| Availability | SUNWcs |

|_____________________________|_____________________________|

| Interface Stability | Committed |

|_____________________________|_____________________________|

| Standard | See standards(5). |

|_____________________________|_____________________________|

ksh93

____________________________________________________________

| ATTRIBUTE TYPE | ATTRIBUTE VALUE |

|_____________________________|_____________________________|

| Availability | SUNWcsu |

|_____________________________|_____________________________|

| Interface Stability | Uncommitted |

|_____________________________|_____________________________|