Cheat sheet
July 15, 2024 ยท View on GitHub
Show GC roots
nix-store --gc --print-roots | grep -v "<hostName>" | column -t | sort -k3 -k1
List all packages
nix-store -q --requisites /run/current-system | cut -d- -f2- | sort | uniq
Tip
You can add a wc -l at the end of the above command, but that will not be
an accurate representation of your package count, as the same package can be
repeated with different versions.
Find biggest packages
nix path-info -hsr /run/current-system/ | sort -hrk2 | head -n 30
Find biggest closures (packages including dependencies)
nix path-info -hSr /run/current-system/ | sort -hrk2 | head -n 10
Show package dependencies as tree
Assuming
hellois in PATH
nix-store -q --tree $(realpath $(which hello))
Show package dependencies including size
nix path-info -hSr nixpkgs#hello
Show the things that will change on reboot
diff <(nix-store -qR /run/current-system) <(nix-store -qR /run/booted-system)