published
updated
install a package
nix-env -i hello <-- not reproducible and hence not advisable
or
edit /etc/nixos/configuration.nix to ensure system wide install
nixos-rebuild switch <-- create new generation
nixos-rebuild test <-- only active while computer on
sudo nixos-rebuild test -I nixpkgs=~/usr/nixpkgs/
^-- use local repo to build pkgs
find out where in the store a binary is
readlink -f $(which hello)
search packages
nix-env -qaP '.*hello.*'
or
nix search <pkg>
search nix package options
nixos-option <option>
clear up space
nix-collect-garbage -d
Run with sudo!
upgrade to new channel
(non flakes only)
nix-channel --list # show what version we're on
nix-channel --add https://nixos.org/channels/nixos-XX.XX nixos
nix-channel --update
nixos-rebuild switch
remember to use sudo if you want to update the system
= use a package through nix-shell =
nix-shell -p <package>
list generations
nix-env --list-generations
list installed packages
nixos-option environment.systemPackages
or
nix-env --query
= install a nixOS .nix file through nix package manager =
nix-env -f nvim.nix -i neovim