Command-line productivity booster, offers quick access to files and directories, inspired by autojump, z and v.
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Fasd (pronounced similar to "fast") is a command-line productivity booster. Fasd offers quick access to files and directories for POSIX shells. It is inspired by tools like autojump, z and v. Fasd keeps track of files and directories you have accessed, so that you can quickly reference them in the command line.

The name fasd comes from the default suggested aliases f(files), a(files/directories), s(show/search/select), d(directories).

Fasd ranks files and directories by "frecency," that is, by both "frequency" and "recency." The term "frecency" was first coined by Mozilla and used in Firefox (link).


If you use your shell to navigate and launch applications, fasd can help you do it more efficiently. With fasd, you can open files regardless of which directory you are in. Just with a few key strings, fasd can find a "frecent" file or directory and open it with command you specify. Below are some hypothetical situations, where you can type in the command on the left and fasd will "expand" your command into the right side. Pretty magic, huh?

  v def conf       =>     vim /some/awkward/path/to/type/default.conf
  j abc            =>     cd /hell/of/a/awkward/path/to/get/to/abcdef
  m movie          =>     mplayer /whatever/whatever/whatever/awesome_movie.mp4
  o eng paper      =>     xdg-open /you/dont/remember/where/english_paper.pdf
  vim `f rc lo`    =>     vim /etc/rc.local
  vim `f rc conf`  =>     vim /etc/rc.conf

Fasd comes with some useful aliases by default:

alias a='fasd -a'        # any
alias s='fasd -si'       # show / search / select
alias d='fasd -d'        # directory
alias f='fasd -f'        # file
alias sd='fasd -sid'     # interactive directory selection
alias sf='fasd -sif'     # interactive file selection
alias z='fasd_cd -d'     # cd, same functionality as j in autojump
alias zz='fasd_cd -d -i' # cd with interactive selection

Fasd will smartly detect when to display a list of files or just the best match. For instance, when you call fasd in a subshell with some search parameters, fasd will only return the best match. This enables you to do:

mv update.html `d www`
cp `f mov` .


Fasd is available in various package managers. Please check the wiki page for an up-to-date list.

You can also manually obtain a copy of fasd.

Download fasd 1.0.1 from GitHub: zip, tar.gz.

Fasd is a self-contained POSIX shell script that can be either sourced or executed. A Makefile is provided to install fasd and fasd.1 to desired places.

System-wide install:

make install

Install to $HOME:

PREFIX=$HOME make install

Or alternatively you can just copy fasd to anywhere you like (preferably under some directory in $PATH).

To get fasd working in a shell, some initialization code must be run. Put the line below in your shell rc.

eval "$(fasd --init auto)"

This will setup a command hook that executes on every command and advanced tab completion for zsh and bash.

If you want more control over what gets into your shell environment, you can pass customized set of arguments to fasd --init.

zsh-hook             # define _fasd_preexec and add it to zsh preexec array
zsh-ccomp            # zsh command mode completion definitions
zsh-ccomp-install    # setup command mode completion for zsh
zsh-wcomp            # zsh word mode completion definitions
zsh-wcomp-install    # setup word mode completion for zsh
bash-hook            # add hook code to bash $PROMPT_COMMAND
bash-ccomp           # bash command mode completion definitions
bash-ccomp-install   # setup command mode completion for bash
posix-alias          # define aliases that applies to all posix shells
posix-hook           # setup $PS1 hook for shells that's posix compatible
tcsh-alias           # define aliases for tcsh
tcsh-hook            # setup tcsh precmd alias

Example for a minimal zsh setup (no tab completion):

eval "$(fasd --init posix-alias zsh-hook)"

Note that this method will slightly increase your shell start-up time, since calling binaries has overhead. You can cache fasd init code if you want minimal overhead. Example code for bash (to be put into .bashrc):

if [ "$(command -v fasd)" -nt "$fasd_cache" -o ! -s "$fasd_cache" ]; then
  fasd --init posix-alias bash-hook bash-ccomp bash-ccomp-install >| "$fasd_cache"
source "$fasd_cache"
unset fasd_cache

Optionally, if you can also source fasd if you want fasd to be a shell function instead of an executable.

You can tweak initialization code. For instance, if you want to use "c" instead of "z" to do directory jumping, you can use the alias below:

alias c='fasd_cd -d'
# `-d` option present for bash completion
# function fasd_cd is defined in posix-alias

After you first installed fasd, open some files (with any program) or cd around in your shell. Then try some examples below.


f foo           # list frecent files matching foo
a foo bar       # list frecent files and directories matching foo and bar
f js$           # list frecent files that ends in js
f -e vim foo    # run vim on the most frecent file matching foo
mplayer `f bar` # run mplayer on the most frecent file matching bar
z foo           # cd into the most frecent directory matching foo
open `sf pdf`   # interactively select a file matching pdf and launch `open`

You should add your own aliases to fully utilize the power of fasd. Here are some examples to get you started:

alias v='f -e vim' # quick opening files with vim
alias m='f -e mplayer' # quick opening files with mplayer
alias o='a -e xdg-open' # quick opening files with xdg-open

If you're using bash, you have to call _fasd_bash_hook_cmd_complete to make completion work. For instance:

_fasd_bash_hook_cmd_complete v m j o

You could select an entry in the list of matching files.


Fasd has three matching modes: default, case-insensitive, and fuzzy.

For a given set of queries (the set of command-line arguments passed to fasd), a path is a match if and only if:

  1. Queries match the path in order.
  2. The last query matches the last segment of the path.

If no match is found, fasd will try the same process ignoring case. If still no match is found, fasd will allow extra characters to be placed between query characters for fuzzy matching.


  • If you want your last query not to match the last segment of the path, append / as the last query.
  • If you want your last query to match the end of the filename, append $ to the last query.

How It Works

When you run fasd init code or source fasd, fasd adds a hook which will be executed whenever you execute a command. The hook will scan your commands' arguments and determine if any of them refer to existing files or directories. If yes, fasd will add them to the database.


Fasd's basic functionalities are POSIX compliant, meaning that you should be able to use fasd in all POSIX compliant shells. Your shell need to support command substitution in $PS1 in order for fasd to automatically track your commands and files. This feature is not specified by the POSIX standard, but it's nonetheless present in many POSIX compliant shells. In shells without prompt command or prompt command substitution (csh for instance), you can add entries manually with fasd -A. You are very welcomed to contribute shell initialization code for not yet supported shells.

Fasd has been tested on the following shells: bash, zsh, mksh, pdksh, dash, busybox ash, FreeBSD 9 /bin/sh and OpenBSD /bin/sh.


fasd [options] [query ...]
[f|a|s|d|z] [options] [query ...]
    -s         list paths with scores
    -l         list paths without scores
    -i         interactive mode
    -e <cmd>   set command to execute on the result file
    -b <name>  only use <name> backend
    -B <name>  add additional backend <name>
    -a         match files and directories
    -d         match directories only
    -f         match files only
    -r         match by rank only
    -t         match by recent access only
    -R         reverse listing order
    -h         show a brief help message
    -[0-9]     select the nth entry

fasd [-A|-D] [paths ...]
    -A    add paths
    -D    delete paths

Tab Completion

Fasd offers two completion modes, command mode completion and word mode completion. Command mode completion works in bash and zsh. Word mode completion only works in zsh.

Command mode completion is just like completion for any other commands. It is triggered when you hit tab on a fasd command or its aliases. Under this mode your queries can be separated by a space. Tip: if you find that the completion result overwrites your queries, type an extra space before you hit tab.

Word mode completion can be triggered on any command. Word completion is triggered by any command line argument that starts with , (all), f, (files), or d, (directories), or that ends with ,, (all), ,,f (files), or ,,d (directories). Examples:

$ vim ,rc,lo<Tab>
$ vim /etc/rc.local

$ mv index.html d,www<Tab>
$ mv index.html /var/www/

There are also three zle widgets: fasd-complete, fasd-complete-f, fasd-complete-d. You can bind them to keybindings you like:

bindkey '^X^A' fasd-complete    # C-x C-a to do fasd-complete (files and directories)
bindkey '^X^F' fasd-complete-f  # C-x C-f to do fasd-complete-f (only files)
bindkey '^X^D' fasd-complete-d  # C-x C-d to do fasd-complete-d (only directories)


Fasd can take advantage of different sources of recent / frequent files. Most desktop environments (such as OS X and Gtk) and some editors (such as Vim) keep a list of accessed files. Fasd can use them as additional backends if the data can be converted into fasd's native format. Below is a list of available backends.

OSX spotlight, provides entries that are changed today or opened within the
past month

GTK's recently-used file (Usually available on Linux)

Provides everything in $PWD (whereever you are executing `fasd`)

Vim's editing history, useful if you want to define an alias just for editing
things in vim

You can define your own backend by declaring a function by that name in your .fasdrc. You can set default backend with _FASD_BACKENDS variable in our .fasdrc.

Fasd can mimic v's behavior by this alias:

alias v='f -t -e vim -b viminfo'


Some shell variables that you can set before sourcing fasd. You can set them in $HOME/.fasdrc

Path to the fasd data file, default "$HOME/.fasd".

List of blacklisted strings. Commands matching them will not be processed.
Default is "--help".

List of all commands that needs to be shifted, defaults to "sudo busybox".

List of all commands that will be ignored, defaults to "fasd ls echo".

Fasd defaults to track your "$PWD". Set this to 0 to disable this behavior.

Which awk to use. Fasd can detect and use a compatible awk.

File to log all STDERR to, defaults to "/dev/null".

Max total score / weight, defaults to 2000.

Which shell to execute. Some shells will run faster than others. fasd
runs faster with dash and ksh variants.

Default backends.

If set to any non-empty string, fasd will not add or delete entries from
database. You can set and export this variable from command line.

Level of "fuzziness" when doing fuzzy matching. More precisely, the number of
characters that can be skipped to generate a match. Set to empty or 0 to
disable fuzzy matching. Default value is 2.

Path to .viminfo file for viminfo backend, defaults to "$HOME/.viminfo"

Path to XDG recently-used.xbel file for recently-used backend, defaults to


If fasd does not work as expected, please file a bug report describing the unexpected behavior along with your OS version, shell version, awk version, sed version, and a log file.

You can set _FASD_SINK in your .fasdrc to obtain a log.



Fasd is originally written based on code from z by rupa deadwyler under the WTFPL license. Most if not all of the code has been rewritten. Fasd is licensed under the "MIT/X11" license.

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