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nix-shell

Start an interactive shell based on a Nix expression. See also: tldr nix3 shell. More information: https://nixos.org/manual/nix/stable/command-ref/nix-shell.html.

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}} {{arg1 arg2 ...}}"

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_name_1 package_name_2 ...}} -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_name_1 package_name_2 ...}}