nix-env:tldr:1906f

The command "nix-env -e ${pkg_name}" is used to remove or uninstall a package installed using the Nix package manager. Let me break it down for you:

• "nix-env": This is the command-line interface for managing packages with Nix.
• "-e": This option or flag stands for "uninstall" or "erase". It instructs nix-env to remove a package from the system.
• "${pkg_name}": This is a placeholder that represents the name of the package you want to uninstall. You should replace ${pkg_name} with the actual package name you wish to remove.

So, when you run this command with the appropriate package name, Nix will find and remove that package from your system, deleting all its files and configuration.