nix-env

manages Nix user environments

TLDR

Install package

$ nix-env -iA nixpkgs.[package]

Uninstall package

$ nix-env -e [package]

List installed packages

$ nix-env -q

Search packages

$ nix-env -qaP [pattern]

Upgrade all packages

$ nix-env -u

Rollback to previous generation

$ nix-env --rollback

List generations

$ nix-env --list-generations

nix-env manages Nix user environments. It installs, upgrades, and removes packages in user profiles, with the ability to rollback to previous states.Each operation creates a new generation, preserving previous states.

PARAMETERS

-i, --install

Install packages.

-e, --uninstall

Remove packages.

-u, --upgrade

Upgrade packages.

-q, --query

Query packages.

-A, --attr

Install by attribute.

--rollback

Rollback generation.

-p profile

Use profile.

PROFILES

$ ~/.nix-profile - Default profile
/nix/var/nix/profiles - System profiles

INSTALL

sudo apt install nix-bin

sudo dnf install nix

sudo pacman -S nix

sudo apk add nix

sudo zypper install nix

nix profile install nixpkgs#nix

CAVEATS

Consider using declarative config (home-manager) instead. Generations use disk space. -A for attribute paths is faster.

HISTORY

nix-env is part of Nix, a purely functional package manager created by Eelco Dolstra in his 2006 PhD thesis at Utrecht University.