nix-shell
Start an interactive shell based on a Nix expression.
TLDR
Start with nix expression in shell.nix or default.nix in the current directory
$ nix-shell
Run shell command in non-interactive shell and exit
$ nix-shell --run "[command] [command_arguments]"
Start with expression in default.nix in the current directory
$ nix-shell [default.nix]
Start with packages loaded from nixpkgs
$ nix-shell --packages [package_name_1] [package_name_2]
Start with packages loaded from specific nixpkgs revision
$ nix-shell --packages [package_names] -I nixpkgs=[https://github.com/NixOS/nixpkgs/archive/nixpkgs_revision.tar.gz]
Evaluate rest of file in specific interpreter, for use in #!-scripts (see <https://nixos.org/manual/nix/stable/#use-as-a-interpreter>)
$ nix-shell -i [interpreter] --packages [package_names]
