How do I use shell aliases under Linux?
Q. What is a shell alias and how do I use them under Linux?
A. An alias is nothing but a short form of a Linux or UNIX command. You use aliases to save the time. To create an alias use the alias command.
Task: Display current aliases
Type alias command with no arguments or with the -p option prints the list
of aliases in the form alias NAME=VALUE on screen:
$ alias
Output:
alias cp='cp -i' alias l.='ls -d .* --color=tty' alias ll='ls -l --color=tty' alias ls='ls --color=tty' alias mv='mv -i' alias rm='rm -i' alias which='alias | /usr/bin/which --tty-only --read-alias --show-dot --show-tilde'
Task : Create an alias
To create an alias use the alias command as follows:
$ alias c=’clear’
Now, type c and hit enter key to run clear the screen aka run screen command.
Task : Remove or delete an alias
To remove or delete an alias use
$ unalias c
Verify that an alias deleted:
$ alias
See also:
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