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59 lines
1.3 KiB
Markdown
Executable File
# The `alias` command
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The `alias` command lets you create shortcuts for commands or define your own commands.
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This is mostly used to avoid typing long commands.
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### Examples:
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1. To show the list of all defined aliases in the reusable form `alias NAME=VALUE` :
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```
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alias -p
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```
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2. To make `ls -A` shortcut:
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```
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alias la='ls -A'
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```
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### Syntax:
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```
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alias [-p] [name[=value]]
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```
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### Setting Persistent Options:
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As with most Linux custom settings for the terminal, any alias you defined is only applied to the current opening terminal session.
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For any alias to be active for all new sessions you need to add that command to your rc file to be executed in the startup of every new terminal.
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this file can be as follows:
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- **Bash**: ~/.bashrc
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- **ZSH**: ~/.zshrc
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- **Fish** – ~/.config/fish/config.fish
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you can open that file with your favorite editor as follows:
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```
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vim ~/.bashrc
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```
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type your commands one per line, then save the file and exit.
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the commands will be automatically applied in the next session.
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If you want to apply it in the current session, run the following command:
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```
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source ~/.bashrc
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```
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### Opposite command:
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To remove predefined alias you can use `unalias` command as follows:
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```
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unalias alias_name
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```
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to remove all aliases
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```
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unalias -a
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```
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