After installing via the instructions in the appropriate section below, add this to your startup script:

eval "$(fasd --init auto)"

For more information, type:

man fasd

Snap

Snap for fasd are available on snap store.

sudo snap install fasd --beta

Debian / Ubuntu

$ sudo add-apt-repository ppa:aacebedo/fasd
$ sudo apt-get update
$ sudo apt-get install fasd

Arch Linux

$ pacman -S fasd

AUR (git): https://aur.archlinux.org/packages/fasd-git/

NixOS

$ nix-env -i fasd

Gentoo Linux

There's an ebuild at http://mestvaelt.gavagai.nl:8080/file/tip/app-misc/fasd.

OpenSUSE, Redhat, CentOS (rpm-based)

RPMs are available at https://build.opensuse.org/package/show/utilities/fasd.

Slackware

SlackBuilds for fasd are available on SBo (most easily accessible via sbopkg).

Mac OS X

Install via Homebrew:

brew install fasd

(For some Mac OS - at least 10.12.6: need to brew install gawk, gnu-sed, and set them as awk,sed to be used by fasd)

oh-my-zsh

First, install fasd using one of the methods above. Then, enable the fasd plugin in your zshrc file:

plugins=(... fasd)