NixOS¶
Update channel:
nix-channel --update nixos; nixos-rebuild switch
Update system: sudo nixos-rebuild switch
Contents:
Find a package¶
https://nixos.org/manual/nix/stable/#chap-package-management
Query (-q) available (-a) packages:
nix-env -qa [regex]
E.g.:
nix-env -qa "firefox.*"
Add -s to show status of matching packages:
$ nix-env -qas
…
-PS bash-3.0
--S binutils-2.15
IPS bison-1.875d
…
I = installed in current environment,
P = present on system (so very fast to add to environment),
S = there's a binary available so you won't have to compile it.
Query just installed packages:
nix-env -q [pattern]
Create a Python virtualenv¶
https://github.com/DavHau/mach-nix is a good start.
Declarative package management¶
https://nixos.org/manual/nixpkgs/stable/#sec-declarative-package-management