Alias (command)
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| − | The [[alias]] command is used to create | + | The [[alias]] command is used to create '''aliases''', and to get a list of aliased commands. |
| − | ==Aliases | + | ==Aliases creation== |
| − | The syntax | + | The syntax is shell dependent: |
| − | '''B-Shell''' ([[sh]], [[bash]]) : | + | '''B-Shell''' ([[sh]], [[bash]]) and '''Z-Shell''' ([[zsh]]) : |
alias l=ls | alias l=ls | ||
alias la='ls -A' | alias la='ls -A' | ||
| Line 12: | Line 12: | ||
alias l ls | alias l ls | ||
alias la 'ls -A' | alias la 'ls -A' | ||
| + | |||
| + | ==Special functions== | ||
| + | |||
| + | Some shells provide additional features, such as the '''-g''' argument of [[zsh]]'s alias [[built-in]] command. This allow creation of ''global aliases'' : | ||
| + | '''> alias a=aaa''' | ||
| + | '''> alias -g b=bbb''' | ||
| + | '''> echo a b''' | ||
| + | a bbb | ||
| + | This can be very useful : | ||
| + | '''> alias -g ...='../..'''' | ||
| + | '''> pwd''' | ||
| + | /foo/bar/misc | ||
| + | '''> cd ...''' | ||
| + | '''> pwd''' | ||
| + | /foo | ||
| + | |||
| + | For more information on the specific options of your shell, check its man page. | ||
==Aliases consultation== | ==Aliases consultation== | ||
| − | You can use this to get | + | You can use this to get a list of existing '''aliases''': |
'''> alias''' | '''> alias''' | ||
...=../.. | ...=../.. | ||
Latest revision as of 16:27, 25 August 2012
The alias command is used to create aliases, and to get a list of aliased commands.
[edit] Aliases creation
The syntax is shell dependent:
B-Shell (sh, bash) and Z-Shell (zsh) :
alias l=ls alias la='ls -A'
alias l ls alias la 'ls -A'
[edit] Special functions
Some shells provide additional features, such as the -g argument of zsh's alias built-in command. This allow creation of global aliases :
> alias a=aaa > alias -g b=bbb > echo a b a bbb
This can be very useful :
> alias -g ...='../..' > pwd /foo/bar/misc > cd ... > pwd /foo
For more information on the specific options of your shell, check its man page.
[edit] Aliases consultation
You can use this to get a list of existing aliases:
> alias ...=../.. ....=../../.. .....=../../../.. ......=../../../../.. .......=../../../../../.. clean='rm -f `find . -name "*~" -o -name ".*~" -o -name ".*.core" -o -name "*.core" -o -name "#*#" -o -name "a.out"` close='cdcontrol -f /dev/cd0 close' eject='cdcontrol -f /dev/cd0 eject' fr='export LANG=fr_FR.ISO8859-15' la='ls -a' ll='ls -Al' ls='ls -FG' > alias ls ls='ls -FG'
