nix-shell:tldr:c420e

The command nix-shell is used to create an isolated environment and execute a specific command within it. This command is commonly used in the Nix package manager ecosystem.

In the provided example, the nix-shell command is used with the following options:

• --run: This option specifies that a command should be executed inside the created shell environment.

The argument to --run is "${command} ${arg1 arg2 ---}". In this argument:

• ${command} is a placeholder for the actual command that you want to run. It could be a binary executable or a script present in the current shell environment.
• ${arg1 arg2 ---} are additional arguments that will be passed to the command.

Important points to note:

• ${arg1 arg2 ---} refers to multiple arguments, where each argument should be separated by a space.
• The argument --- is used as a delimiter to separate the command from its arguments to avoid any conflicts with subsequent options or flags.
• You need to substitute ${command} and ${arg1 arg2 ---} with the actual desired values when running the command.

Overall, the provided nix-shell command is used to create an isolated environment, then execute a command (${command}) along with its arguments (${arg1 arg2 ---}) inside that environment.