Upgrading packages
To upgrade a package, use the command nix-env -u <package-name>.
For example:
nix-env -u firefox
As the firefox package had just been installed, there was no upgrade.
Nix – The Purely Functional Package Manager for Linux
Nix is a purely functional package manager for Linux, that serves to provide a purely functional approach to any system’s software package management. Due to its functional and declarative approach, it is lauded for its capacity to:
- Support the installation of multiple versions of a given package.
- Enable atomic upgrades and rollbacks of a given package.
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