Programming Tutorials

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alias, unalias in Mac OS X

By: Strauss K in macos Tutorials on 2011年02月03日 [フレーム]

In macOS, you can create aliases to simplify frequently used commands or to shorten long commands. An alias is a custom name for a command or group of commands. You can create and manage aliases in the Terminal app or in your shell configuration file.

To create an alias, use the alias command followed by the alias name and the command it represents:

alias ll='ls -l'

In this example, the ll command is an alias for ls -l. Whenever you run ll, it will execute the ls -l command.

To remove an alias, use the unalias command followed by the alias name:

unalias ll

This will remove the ll alias from your system.

Aliases are only valid for the current terminal session, so if you want to make them permanent, you can add them to your shell configuration file (e.g. ~/.bashrc or ~/.zshrc).

Note that some commands may not work correctly when used with aliases. For example, if you alias rm to rm -i, it will prompt you for confirmation before deleting files. However, some scripts or programs may not expect this behavior and may fail unexpectedly. Use aliases with caution and only for simple, well-known commands.




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