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# Quick Start

This chapter is for impatient people who don't like reading documentation. For more in-depth information you are kindly referred to subsequent chapters.

1. Install Nix:

       $ curl -L https://nixos.org/nix/install | sh

   The install script will use `sudo`, so make sure you have sufficient rights.

   For other installation methods, see the detailed installation instructions.

2. Run software without installing it permanently:

       $ nix-shell --packages cowsay lolcat

   This downloads the specified packages with all their dependencies, and drops you into a Bash shell where the commands provided by those packages are present. This will not affect your normal environment:

       [nix-shell:~]$ cowsay Hello, Nix! | lolcat

   Exiting the shell will make the programs disappear again:

       [nix-shell:~]$ exit
       $ lolcat
       lolcat: command not found

3. Search for more packages on search.nixos.org to try them out.

4. Free up storage space:

       $ nix-collect-garbage