Forrest logo
back to the !${command} tool

git-repl:tldr:54604

git-repl: Run an external (non-Git) command while in the interactive Git shell.
$ !${command} ${command_arguments}
try on your machine

The command you provided is often used in Unix-like systems, such as Linux, and is known as a history substitution. Here's how it works:

  1. ! is a special character indicating that a history substitution is going to be performed.

  2. ${command} is a placeholder for a command that you want to reference from your command history.

  3. ${command_arguments} represents any arguments or options that you want to pass to the referenced command.

By using !${command} followed by ${command_arguments}, you are instructing the shell to retrieve a specific command from your history based on the placeholder ${command}, and then execute it along with the specified ${command_arguments}.

For example, let's say you previously executed the command ls -l to list the files in a directory. After that, you want to repeat the same command. Instead of typing ls -l again, you can simply use !ls to refer to the previous ls command and execute it.

In this case, !${command} will be replaced with the command you reference (e.g., ls), and ${command_arguments} will be replaced with the arguments you provide (e.g., -l).

Note: The actual behavior and supported syntax might differ based on the specific shell or operating system you are using, so it's always a good idea to consult the documentation or man pages for precise details.

This explanation was created by an AI. In most cases those are correct. But please always be careful and never run a command you are not sure if it is safe.
back to the !${command} tool