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This makes it possible to skip one of the above key bindings or completions by setting a variable to an empty string. For example, FZF_CTRL_T_COMMAND= FZF_ALT_C_COMMAND= \ eval "$(fzf --zsh)" Co-authored-by: Junegunn Choi <junegunn.c@gmail.com>
889 lines
34 KiB
Markdown
889 lines
34 KiB
Markdown
<div align="center">
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<sup>Special thanks to:</sup>
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<br>
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<br>
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<a href="https://warp.dev/?utm_source=github&utm_medium=referral&utm_campaign=fzf_20240209">
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<div>
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<img src="https://raw.githubusercontent.com/junegunn/i/master/warp.png" width="300" alt="Warp">
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</div>
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<b>Warp is a modern, Rust-based terminal with AI built in so you and your team can build great software, faster.</b>
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<div>
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<sup>Visit warp.dev to learn more.</sup>
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</div>
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</a>
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<br>
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<hr>
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</div>
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<br>
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<img src="https://raw.githubusercontent.com/junegunn/i/master/fzf.png" height="170" alt="fzf - a command-line fuzzy finder"> [![github-actions](https://github.com/junegunn/fzf/workflows/Test%20fzf%20on%20Linux/badge.svg)](https://github.com/junegunn/fzf/actions)
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===
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fzf is a general-purpose command-line fuzzy finder.
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<img src="https://raw.githubusercontent.com/junegunn/i/master/fzf-preview.png" width=640>
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It's an interactive Unix filter for command-line that can be used with any
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list; files, command history, processes, hostnames, bookmarks, git commits,
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etc.
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Pros
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----
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- Portable, no dependencies
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- Blazingly fast
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- The most comprehensive feature set
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- Flexible layout
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- Batteries included
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- Vim/Neovim plugin, key bindings, and fuzzy auto-completion
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Sponsors ❤️
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-----------
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I would like to thank all the sponsors of this project who make it possible for me to continue to improve fzf.
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If you'd like to sponsor this project, please visit https://github.com/sponsors/junegunn.
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<!-- sponsors --><a href="https://github.com/miyanokomiya"><img src="https://github.com/miyanokomiya.png" width="60px" alt="miyanokomiya" /></a><a href="https://github.com/jonhoo"><img src="https://github.com/jonhoo.png" width="60px" alt="Jon Gjengset" /></a><a href="https://github.com/AceofSpades5757"><img src="https://github.com/AceofSpades5757.png" width="60px" alt="Kyle L. Davis" /></a><a href="https://github.com/Frederick888"><img src="https://github.com/Frederick888.png" width="60px" alt="Frederick Zhang" /></a><a href="https://github.com/moritzdietz"><img src="https://github.com/moritzdietz.png" width="60px" alt="Moritz Dietz" /></a><a href="https://github.com/mikker"><img src="https://github.com/mikker.png" width="60px" alt="Mikkel Malmberg" /></a><a href="https://github.com/pldubouilh"><img src="https://github.com/pldubouilh.png" width="60px" alt="Pierre Dubouilh" /></a><a href="https://github.com/rcorre"><img src="https://github.com/rcorre.png" width="60px" alt="Ryan Roden-Corrent" /></a><a href="https://github.com/blissdev"><img src="https://github.com/blissdev.png" width="60px" alt="Jordan Arentsen" /></a><a href="https://github.com/mislav"><img src="https://github.com/mislav.png" width="60px" alt="Mislav Marohnić" /></a><a href="https://github.com/aexvir"><img src="https://github.com/aexvir.png" width="60px" alt="Alex Viscreanu" /></a><a 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src="https://github.com/pooriajr.png" width="60px" alt="Pooria" /></a><a href="https://github.com/wjt"><img src="https://github.com/wjt.png" width="60px" alt="Will Thompson" /></a><a href="https://github.com/faruzzy"><img src="https://github.com/faruzzy.png" width="60px" alt="Roland" /></a><a href="https://github.com/mrhenry"><img src="https://github.com/mrhenry.png" width="60px" alt="Mr. Henry" /></a><!-- sponsors -->
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Table of Contents
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-----------------
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<!-- vim-markdown-toc GFM -->
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* [Installation](#installation)
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* [Using Homebrew](#using-homebrew)
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* [Using git](#using-git)
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* [Using Linux package managers](#using-linux-package-managers)
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* [Windows](#windows)
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* [Setting up shell integration](#setting-up-shell-integration)
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* [As Vim plugin](#as-vim-plugin)
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* [Upgrading fzf](#upgrading-fzf)
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* [Building fzf](#building-fzf)
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* [Usage](#usage)
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* [Using the finder](#using-the-finder)
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* [Layout](#layout)
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* [Search syntax](#search-syntax)
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* [Environment variables](#environment-variables)
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* [Options](#options)
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* [Demo](#demo)
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* [Examples](#examples)
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* [`fzf-tmux` script](#fzf-tmux-script)
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* [Key bindings for command-line](#key-bindings-for-command-line)
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* [Fuzzy completion for bash and zsh](#fuzzy-completion-for-bash-and-zsh)
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* [Files and directories](#files-and-directories)
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* [Process IDs](#process-ids)
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* [Host names](#host-names)
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* [Environment variables / Aliases](#environment-variables--aliases)
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* [Settings](#settings)
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* [Supported commands](#supported-commands)
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* [Custom fuzzy completion](#custom-fuzzy-completion)
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* [Vim plugin](#vim-plugin)
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* [Advanced topics](#advanced-topics)
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* [Performance](#performance)
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* [Executing external programs](#executing-external-programs)
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* [Turning into a different process](#turning-into-a-different-process)
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* [Reloading the candidate list](#reloading-the-candidate-list)
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* [1. Update the list of processes by pressing CTRL-R](#1-update-the-list-of-processes-by-pressing-ctrl-r)
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* [2. Switch between sources by pressing CTRL-D or CTRL-F](#2-switch-between-sources-by-pressing-ctrl-d-or-ctrl-f)
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* [3. Interactive ripgrep integration](#3-interactive-ripgrep-integration)
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* [Preview window](#preview-window)
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* [Previewing an image](#previewing-an-image)
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* [Tips](#tips)
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* [Respecting `.gitignore`](#respecting-gitignore)
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* [Fish shell](#fish-shell)
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* [fzf Theme Playground](#fzf-theme-playground)
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* [Related projects](#related-projects)
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* [License](#license)
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<!-- vim-markdown-toc -->
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Installation
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------------
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fzf project consists of the following components:
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- `fzf` executable
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- `fzf-tmux` script for launching fzf in a tmux pane
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- Shell integration
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- Key bindings (`CTRL-T`, `CTRL-R`, and `ALT-C`) (bash, zsh, fish)
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- Fuzzy completion (bash, zsh)
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- Vim/Neovim plugin
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You can [download fzf executable][bin] alone if you don't need the extra
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stuff.
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[bin]: https://github.com/junegunn/fzf/releases
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### Using Homebrew
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You can use [Homebrew](https://brew.sh/) (on macOS or Linux)
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to install fzf.
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```sh
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brew install fzf
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```
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> [!IMPORTANT]
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> To set up shell integration (key bindings and fuzzy completion),
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> see [the instructions below](#setting-up-shell-integration).
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fzf is also available [via MacPorts][portfile]: `sudo port install fzf`
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[portfile]: https://github.com/macports/macports-ports/blob/master/sysutils/fzf/Portfile
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### Using git
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Alternatively, you can "git clone" this repository to any directory and run
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[install](https://github.com/junegunn/fzf/blob/master/install) script.
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```sh
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git clone --depth 1 https://github.com/junegunn/fzf.git ~/.fzf
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~/.fzf/install
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```
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The install script will add lines to your shell configuration file to modify
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`$PATH` and set up shell integration.
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### Using Linux package managers
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| Package Manager | Linux Distribution | Command |
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| --------------- | ----------------------- | ---------------------------------- |
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| APK | Alpine Linux | `sudo apk add fzf` |
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| APT | Debian 9+/Ubuntu 19.10+ | `sudo apt install fzf` |
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| Conda | | `conda install -c conda-forge fzf` |
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| DNF | Fedora | `sudo dnf install fzf` |
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| Nix | NixOS, etc. | `nix-env -iA nixpkgs.fzf` |
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| Pacman | Arch Linux | `sudo pacman -S fzf` |
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| pkg | FreeBSD | `pkg install fzf` |
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| pkgin | NetBSD | `pkgin install fzf` |
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| pkg_add | OpenBSD | `pkg_add fzf` |
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| Portage | Gentoo | `emerge --ask app-shells/fzf` |
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| Spack | | `spack install fzf` |
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| XBPS | Void Linux | `sudo xbps-install -S fzf` |
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| Zypper | openSUSE | `sudo zypper install fzf` |
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> [!IMPORTANT]
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> To set up shell integration (key bindings and fuzzy completion),
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> see [the instructions below](#setting-up-shell-integration).
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[![Packaging status](https://repology.org/badge/vertical-allrepos/fzf.svg)](https://repology.org/project/fzf/versions)
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### Windows
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Pre-built binaries for Windows can be downloaded [here][bin]. fzf is also
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available via [Chocolatey][choco], [Scoop][scoop], [Winget][winget], and [MSYS2][msys2]:
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| Package manager | Command |
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| --------------- | ------------------------------------- |
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| Chocolatey | `choco install fzf` |
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| Scoop | `scoop install fzf` |
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| Winget | `winget install fzf` |
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| MSYS2 (pacman) | `pacman -S $MINGW_PACKAGE_PREFIX-fzf` |
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[choco]: https://chocolatey.org/packages/fzf
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[scoop]: https://github.com/ScoopInstaller/Main/blob/master/bucket/fzf.json
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[winget]: https://github.com/microsoft/winget-pkgs/tree/master/manifests/j/junegunn/fzf
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[msys2]: https://packages.msys2.org/base/mingw-w64-fzf
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Known issues and limitations on Windows can be found on [the wiki
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page][windows-wiki].
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[windows-wiki]: https://github.com/junegunn/fzf/wiki/Windows
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### Setting up shell integration
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Add the following line to your shell configuration file.
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* bash
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```sh
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# Set up fzf key bindings and fuzzy completion
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eval "$(fzf --bash)"
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```
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* zsh
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```sh
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# Set up fzf key bindings and fuzzy completion
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eval "$(fzf --zsh)"
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```
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* fish
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```fish
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# Set up fzf key bindings
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fzf --fish | source
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```
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> [!NOTE]
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> `--bash`, `--zsh`, and `--fish` options are only available in
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> fzf 0.48.0 or above. If you have an older version of fzf, refer to the
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> package documentation for more information. (e.g. `apt show fzf`)
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### As Vim plugin
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If you use
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[vim-plug](https://github.com/junegunn/vim-plug), add this line to your Vim
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configuration file:
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```vim
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Plug 'junegunn/fzf', { 'do': { -> fzf#install() } }
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```
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`fzf#install()` makes sure that you have the latest binary, but it's optional,
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so you can omit it if you use a plugin manager that doesn't support hooks.
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For more installation options, see [README-VIM.md](README-VIM.md).
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Upgrading fzf
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-------------
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fzf is being actively developed, and you might want to upgrade it once in a
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while. Please follow the instruction below depending on the installation
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method used.
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- git: `cd ~/.fzf && git pull && ./install`
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- brew: `brew update; brew upgrade fzf`
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- macports: `sudo port upgrade fzf`
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- chocolatey: `choco upgrade fzf`
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- vim-plug: `:PlugUpdate fzf`
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Building fzf
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------------
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See [BUILD.md](BUILD.md).
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Usage
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-----
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fzf will launch interactive finder, read the list from STDIN, and write the
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selected item to STDOUT.
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```sh
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find * -type f | fzf > selected
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```
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Without STDIN pipe, fzf will traverse the file system under the current
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directory to get the list of files.
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```sh
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vim $(fzf)
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```
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> [!NOTE]
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> You can override the default behavior
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> * Either by setting `$FZF_DEFAULT_COMMAND` to a command that generates the desired list
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> * Or by setting `--walker`, `--walker-root`, and `--walker-skip` options in `$FZF_DEFAULT_OPTS`
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> [!WARNING]
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> A more robust solution would be to use `xargs` but we've presented
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> the above as it's easier to grasp
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> ```sh
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> fzf --print0 | xargs -0 -o vim
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> ```
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> [!TIP]
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> fzf also has the ability to turn itself into a different process.
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>
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> ```sh
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> fzf --bind 'enter:become(vim {})'
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> ```
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>
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> *See [Turning into a different process](#turning-into-a-different-process)
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> for more information.*
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### Using the finder
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- `CTRL-K` / `CTRL-J` (or `CTRL-P` / `CTRL-N`) to move cursor up and down
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- `Enter` key to select the item, `CTRL-C` / `CTRL-G` / `ESC` to exit
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- On multi-select mode (`-m`), `TAB` and `Shift-TAB` to mark multiple items
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- Emacs style key bindings
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- Mouse: scroll, click, double-click; shift-click and shift-scroll on
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multi-select mode
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### Layout
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fzf by default starts in fullscreen mode, but you can make it start below the
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cursor with `--height` option.
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```sh
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vim $(fzf --height 40%)
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```
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Also, check out `--reverse` and `--layout` options if you prefer
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"top-down" layout instead of the default "bottom-up" layout.
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```sh
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vim $(fzf --height 40% --reverse)
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```
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You can add these options to `$FZF_DEFAULT_OPTS` so that they're applied by
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default. For example,
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```sh
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export FZF_DEFAULT_OPTS='--height 40% --layout=reverse --border'
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```
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### Search syntax
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Unless otherwise specified, fzf starts in "extended-search mode" where you can
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type in multiple search terms delimited by spaces. e.g. `^music .mp3$ sbtrkt
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!fire`
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| Token | Match type | Description |
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| --------- | -------------------------- | ------------------------------------ |
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| `sbtrkt` | fuzzy-match | Items that match `sbtrkt` |
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| `'wild` | exact-match (quoted) | Items that include `wild` |
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| `^music` | prefix-exact-match | Items that start with `music` |
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| `.mp3$` | suffix-exact-match | Items that end with `.mp3` |
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| `!fire` | inverse-exact-match | Items that do not include `fire` |
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| `!^music` | inverse-prefix-exact-match | Items that do not start with `music` |
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| `!.mp3$` | inverse-suffix-exact-match | Items that do not end with `.mp3` |
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If you don't prefer fuzzy matching and do not wish to "quote" every word,
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start fzf with `-e` or `--exact` option. Note that when `--exact` is set,
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`'`-prefix "unquotes" the term.
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A single bar character term acts as an OR operator. For example, the following
|
|
query matches entries that start with `core` and end with either `go`, `rb`,
|
|
or `py`.
|
|
|
|
```
|
|
^core go$ | rb$ | py$
|
|
```
|
|
|
|
### Environment variables
|
|
|
|
- `FZF_DEFAULT_COMMAND`
|
|
- Default command to use when input is tty
|
|
- e.g. `export FZF_DEFAULT_COMMAND='fd --type f'`
|
|
- `FZF_DEFAULT_OPTS`
|
|
- Default options
|
|
- e.g. `export FZF_DEFAULT_OPTS="--layout=reverse --inline-info"`
|
|
- `FZF_DEFAULT_OPTS_FILE`
|
|
- If you prefer to manage default options in a file, set this variable to
|
|
point to the location of the file
|
|
- e.g. `export FZF_DEFAULT_OPTS_FILE=~/.fzfrc`
|
|
|
|
> [!WARNING]
|
|
> `FZF_DEFAULT_COMMAND` is not used by shell integration due to the
|
|
> slight difference in requirements.
|
|
>
|
|
> * `CTRL-T` runs `$FZF_CTRL_T_COMMAND` to get a list of files and directories
|
|
> * `ALT-C` runs `$FZF_ALT_C_COMMAND` to get a list of directories
|
|
> * `vim ~/**<tab>` runs `fzf_compgen_path()` with the prefix (`~/`) as the first argument
|
|
> * `cd foo**<tab>` runs `fzf_compgen_dir()` with the prefix (`foo`) as the first argument
|
|
>
|
|
> The available options are described later in this document.
|
|
|
|
### Options
|
|
|
|
See the man page (`man fzf`) for the full list of options.
|
|
|
|
### Demo
|
|
If you learn by watching videos, check out this screencast by [@samoshkin](https://github.com/samoshkin) to explore `fzf` features.
|
|
|
|
<a title="fzf - command-line fuzzy finder" href="https://www.youtube.com/watch?v=qgG5Jhi_Els">
|
|
<img src="https://i.imgur.com/vtG8olE.png" width="640">
|
|
</a>
|
|
|
|
Examples
|
|
--------
|
|
|
|
* [Wiki page of examples](https://github.com/junegunn/fzf/wiki/examples)
|
|
* *Disclaimer: The examples on this page are maintained by the community
|
|
and are not thoroughly tested*
|
|
* [Advanced fzf examples](https://github.com/junegunn/fzf/blob/master/ADVANCED.md)
|
|
|
|
`fzf-tmux` script
|
|
-----------------
|
|
|
|
[fzf-tmux](bin/fzf-tmux) is a bash script that opens fzf in a tmux pane.
|
|
|
|
```sh
|
|
# usage: fzf-tmux [LAYOUT OPTIONS] [--] [FZF OPTIONS]
|
|
|
|
# See available options
|
|
fzf-tmux --help
|
|
|
|
# select git branches in horizontal split below (15 lines)
|
|
git branch | fzf-tmux -d 15
|
|
|
|
# select multiple words in vertical split on the left (20% of screen width)
|
|
cat /usr/share/dict/words | fzf-tmux -l 20% --multi --reverse
|
|
```
|
|
|
|
It will still work even when you're not on tmux, silently ignoring `-[pudlr]`
|
|
options, so you can invariably use `fzf-tmux` in your scripts.
|
|
|
|
Alternatively, you can use `--height HEIGHT[%]` option not to start fzf in
|
|
fullscreen mode.
|
|
|
|
```sh
|
|
fzf --height 40%
|
|
```
|
|
|
|
Key bindings for command-line
|
|
-----------------------------
|
|
|
|
The install script will setup the following key bindings for bash, zsh, and
|
|
fish.
|
|
|
|
- `CTRL-T` - Paste the selected files and directories onto the command-line
|
|
- The list is generated using `--walker file,dir,follow,hidden` option
|
|
- You can override the behavior by setting `FZF_CTRL_T_COMMAND` to a custom command that generates the desired list
|
|
- Or you can set `--walker*` options in `FZF_CTRL_T_OPTS`
|
|
- Set `FZF_CTRL_T_OPTS` to pass additional options to fzf
|
|
```sh
|
|
# Preview file content using bat (https://github.com/sharkdp/bat)
|
|
export FZF_CTRL_T_OPTS="
|
|
--walker-skip .git,node_modules,target
|
|
--preview 'bat -n --color=always {}'
|
|
--bind 'ctrl-/:change-preview-window(down|hidden|)'"
|
|
```
|
|
- Can be disabled by setting `FZF_CTRL_T_COMMAND` to an empty string when
|
|
sourcing the script
|
|
- `CTRL-R` - Paste the selected command from history onto the command-line
|
|
- If you want to see the commands in chronological order, press `CTRL-R`
|
|
again which toggles sorting by relevance
|
|
- Set `FZF_CTRL_R_OPTS` to pass additional options to fzf
|
|
```sh
|
|
# CTRL-/ to toggle small preview window to see the full command
|
|
# CTRL-Y to copy the command into clipboard using pbcopy
|
|
export FZF_CTRL_R_OPTS="
|
|
--preview 'echo {}' --preview-window up:3:hidden:wrap
|
|
--bind 'ctrl-/:toggle-preview'
|
|
--bind 'ctrl-y:execute-silent(echo -n {2..} | pbcopy)+abort'
|
|
--color header:italic
|
|
--header 'Press CTRL-Y to copy command into clipboard'"
|
|
```
|
|
- `ALT-C` - cd into the selected directory
|
|
- The list is generated using `--walker dir,follow,hidden` option
|
|
- Set `FZF_ALT_C_COMMAND` to override the default command
|
|
- Or you can set `--walker-*` options in `FZF_ALT_C_OPTS`
|
|
- Set `FZF_ALT_C_OPTS` to pass additional options to fzf
|
|
```sh
|
|
# Print tree structure in the preview window
|
|
export FZF_ALT_C_OPTS="
|
|
--walker-skip .git,node_modules,target
|
|
--preview 'tree -C {}'"
|
|
```
|
|
- Can be disabled by setting `FZF_ALT_C_COMMAND` to an empty string when
|
|
sourcing the script
|
|
|
|
If you're on a tmux session, you can start fzf in a tmux split-pane or in
|
|
a tmux popup window by setting `FZF_TMUX_OPTS` (e.g. `export FZF_TMUX_OPTS='-p80%,60%'`).
|
|
See `fzf-tmux --help` for available options.
|
|
|
|
More tips can be found on [the wiki page](https://github.com/junegunn/fzf/wiki/Configuring-shell-key-bindings).
|
|
|
|
Fuzzy completion for bash and zsh
|
|
---------------------------------
|
|
|
|
### Files and directories
|
|
|
|
Fuzzy completion for files and directories can be triggered if the word before
|
|
the cursor ends with the trigger sequence, which is by default `**`.
|
|
|
|
- `COMMAND [DIRECTORY/][FUZZY_PATTERN]**<TAB>`
|
|
|
|
```sh
|
|
# Files under the current directory
|
|
# - You can select multiple items with TAB key
|
|
vim **<TAB>
|
|
|
|
# Files under parent directory
|
|
vim ../**<TAB>
|
|
|
|
# Files under parent directory that match `fzf`
|
|
vim ../fzf**<TAB>
|
|
|
|
# Files under your home directory
|
|
vim ~/**<TAB>
|
|
|
|
|
|
# Directories under current directory (single-selection)
|
|
cd **<TAB>
|
|
|
|
# Directories under ~/github that match `fzf`
|
|
cd ~/github/fzf**<TAB>
|
|
```
|
|
|
|
### Process IDs
|
|
|
|
Fuzzy completion for PIDs is provided for kill command.
|
|
|
|
```sh
|
|
# Can select multiple processes with <TAB> or <Shift-TAB> keys
|
|
kill -9 **<TAB>
|
|
```
|
|
|
|
### Host names
|
|
|
|
For ssh and telnet commands, fuzzy completion for hostnames is provided. The
|
|
names are extracted from /etc/hosts and ~/.ssh/config.
|
|
|
|
```sh
|
|
ssh **<TAB>
|
|
telnet **<TAB>
|
|
```
|
|
|
|
### Environment variables / Aliases
|
|
|
|
```sh
|
|
unset **<TAB>
|
|
export **<TAB>
|
|
unalias **<TAB>
|
|
```
|
|
|
|
### Settings
|
|
|
|
```sh
|
|
# Use ~~ as the trigger sequence instead of the default **
|
|
export FZF_COMPLETION_TRIGGER='~~'
|
|
|
|
# Options to fzf command
|
|
export FZF_COMPLETION_OPTS='--border --info=inline'
|
|
|
|
# Use fd (https://github.com/sharkdp/fd) for listing path candidates.
|
|
# - The first argument to the function ($1) is the base path to start traversal
|
|
# - See the source code (completion.{bash,zsh}) for the details.
|
|
_fzf_compgen_path() {
|
|
fd --hidden --follow --exclude ".git" . "$1"
|
|
}
|
|
|
|
# Use fd to generate the list for directory completion
|
|
_fzf_compgen_dir() {
|
|
fd --type d --hidden --follow --exclude ".git" . "$1"
|
|
}
|
|
|
|
# Advanced customization of fzf options via _fzf_comprun function
|
|
# - The first argument to the function is the name of the command.
|
|
# - You should make sure to pass the rest of the arguments to fzf.
|
|
_fzf_comprun() {
|
|
local command=$1
|
|
shift
|
|
|
|
case "$command" in
|
|
cd) fzf --preview 'tree -C {} | head -200' "$@" ;;
|
|
export|unset) fzf --preview "eval 'echo \$'{}" "$@" ;;
|
|
ssh) fzf --preview 'dig {}' "$@" ;;
|
|
*) fzf --preview 'bat -n --color=always {}' "$@" ;;
|
|
esac
|
|
}
|
|
```
|
|
|
|
### Supported commands
|
|
|
|
On bash, fuzzy completion is enabled only for a predefined set of commands
|
|
(`complete | grep _fzf` to see the list). But you can enable it for other
|
|
commands as well by using `_fzf_setup_completion` helper function.
|
|
|
|
```sh
|
|
# usage: _fzf_setup_completion path|dir|var|alias|host COMMANDS...
|
|
_fzf_setup_completion path ag git kubectl
|
|
_fzf_setup_completion dir tree
|
|
```
|
|
|
|
### Custom fuzzy completion
|
|
|
|
_**(Custom completion API is experimental and subject to change)**_
|
|
|
|
For a command named _"COMMAND"_, define `_fzf_complete_COMMAND` function using
|
|
`_fzf_complete` helper.
|
|
|
|
```sh
|
|
# Custom fuzzy completion for "doge" command
|
|
# e.g. doge **<TAB>
|
|
_fzf_complete_doge() {
|
|
_fzf_complete --multi --reverse --prompt="doge> " -- "$@" < <(
|
|
echo very
|
|
echo wow
|
|
echo such
|
|
echo doge
|
|
)
|
|
}
|
|
```
|
|
|
|
- The arguments before `--` are the options to fzf.
|
|
- After `--`, simply pass the original completion arguments unchanged (`"$@"`).
|
|
- Then, write a set of commands that generates the completion candidates and
|
|
feed its output to the function using process substitution (`< <(...)`).
|
|
|
|
zsh will automatically pick up the function using the naming convention but in
|
|
bash you have to manually associate the function with the command using the
|
|
`complete` command.
|
|
|
|
```sh
|
|
[ -n "$BASH" ] && complete -F _fzf_complete_doge -o default -o bashdefault doge
|
|
```
|
|
|
|
If you need to post-process the output from fzf, define
|
|
`_fzf_complete_COMMAND_post` as follows.
|
|
|
|
```sh
|
|
_fzf_complete_foo() {
|
|
_fzf_complete --multi --reverse --header-lines=3 -- "$@" < <(
|
|
ls -al
|
|
)
|
|
}
|
|
|
|
_fzf_complete_foo_post() {
|
|
awk '{print $NF}'
|
|
}
|
|
|
|
[ -n "$BASH" ] && complete -F _fzf_complete_foo -o default -o bashdefault foo
|
|
```
|
|
|
|
Vim plugin
|
|
----------
|
|
|
|
See [README-VIM.md](README-VIM.md).
|
|
|
|
Advanced topics
|
|
---------------
|
|
|
|
### Performance
|
|
|
|
fzf is fast. Performance should not be a problem in most use cases. However,
|
|
you might want to be aware of the options that can affect performance.
|
|
|
|
- `--ansi` tells fzf to extract and parse ANSI color codes in the input, and it
|
|
makes the initial scanning slower. So it's not recommended that you add it
|
|
to your `$FZF_DEFAULT_OPTS`.
|
|
- `--nth` makes fzf slower because it has to tokenize each line.
|
|
- `--with-nth` makes fzf slower as fzf has to tokenize and reassemble each
|
|
line.
|
|
|
|
### Executing external programs
|
|
|
|
You can set up key bindings for starting external processes without leaving
|
|
fzf (`execute`, `execute-silent`).
|
|
|
|
```bash
|
|
# Press F1 to open the file with less without leaving fzf
|
|
# Press CTRL-Y to copy the line to clipboard and aborts fzf (requires pbcopy)
|
|
fzf --bind 'f1:execute(less -f {}),ctrl-y:execute-silent(echo {} | pbcopy)+abort'
|
|
```
|
|
|
|
See *KEY BINDINGS* section of the man page for details.
|
|
|
|
### Turning into a different process
|
|
|
|
`become(...)` is similar to `execute(...)`/`execute-silent(...)` described
|
|
above, but instead of executing the command and coming back to fzf on
|
|
complete, it turns fzf into a new process for the command.
|
|
|
|
```sh
|
|
fzf --bind 'enter:become(vim {})'
|
|
```
|
|
|
|
Compared to the seemingly equivalent command substitution `vim "$(fzf)"`, this
|
|
approach has several advantages:
|
|
|
|
* Vim will not open an empty file when you terminate fzf with
|
|
<kbd>CTRL-C</kbd>
|
|
* Vim will not open an empty file when you press <kbd>ENTER</kbd> on an empty
|
|
result
|
|
* Can handle multiple selections even when they have whitespaces
|
|
```sh
|
|
fzf --multi --bind 'enter:become(vim {+})'
|
|
```
|
|
|
|
To be fair, running `fzf --print0 | xargs -0 -o vim` instead of `vim "$(fzf)"`
|
|
resolves all of the issues mentioned. Nonetheless, `become(...)` still offers
|
|
additional benefits in different scenarios.
|
|
|
|
* You can set up multiple bindings to handle the result in different ways
|
|
without any wrapping script
|
|
```sh
|
|
fzf --bind 'enter:become(vim {}),ctrl-e:become(emacs {})'
|
|
```
|
|
* Previously, you would have to use `--expect=ctrl-e` and check the first
|
|
line of the output of fzf
|
|
* You can easily build the subsequent command using the field index
|
|
expressions of fzf
|
|
```sh
|
|
# Open the file in Vim and go to the line
|
|
git grep --line-number . |
|
|
fzf --delimiter : --nth 3.. --bind 'enter:become(vim {1} +{2})'
|
|
```
|
|
|
|
### Reloading the candidate list
|
|
|
|
By binding `reload` action to a key or an event, you can make fzf dynamically
|
|
reload the candidate list. See https://github.com/junegunn/fzf/issues/1750 for
|
|
more details.
|
|
|
|
#### 1. Update the list of processes by pressing CTRL-R
|
|
|
|
```sh
|
|
ps -ef |
|
|
fzf --bind 'ctrl-r:reload(ps -ef)' \
|
|
--header 'Press CTRL-R to reload' --header-lines=1 \
|
|
--height=50% --layout=reverse
|
|
```
|
|
|
|
#### 2. Switch between sources by pressing CTRL-D or CTRL-F
|
|
|
|
```sh
|
|
FZF_DEFAULT_COMMAND='find . -type f' \
|
|
fzf --bind 'ctrl-d:reload(find . -type d),ctrl-f:reload(eval "$FZF_DEFAULT_COMMAND")' \
|
|
--height=50% --layout=reverse
|
|
```
|
|
|
|
#### 3. Interactive ripgrep integration
|
|
|
|
The following example uses fzf as the selector interface for ripgrep. We bound
|
|
`reload` action to `change` event, so every time you type on fzf, the ripgrep
|
|
process will restart with the updated query string denoted by the placeholder
|
|
expression `{q}`. Also, note that we used `--disabled` option so that fzf
|
|
doesn't perform any secondary filtering.
|
|
|
|
```sh
|
|
: | rg_prefix='rg --column --line-number --no-heading --color=always --smart-case' \
|
|
fzf --bind 'start:reload:$rg_prefix ""' \
|
|
--bind 'change:reload:$rg_prefix {q} || true' \
|
|
--bind 'enter:become(vim {1} +{2})' \
|
|
--ansi --disabled \
|
|
--height=50% --layout=reverse
|
|
```
|
|
|
|
If ripgrep doesn't find any matches, it will exit with a non-zero exit status,
|
|
and fzf will warn you about it. To suppress the warning message, we added
|
|
`|| true` to the command, so that it always exits with 0.
|
|
|
|
See ["Using fzf as interactive Ripgrep launcher"](https://github.com/junegunn/fzf/blob/master/ADVANCED.md#using-fzf-as-interactive-ripgrep-launcher)
|
|
for more sophisticated examples.
|
|
|
|
### Preview window
|
|
|
|
When the `--preview` option is set, fzf automatically starts an external process
|
|
with the current line as the argument and shows the result in the split window.
|
|
Your `$SHELL` is used to execute the command with `$SHELL -c COMMAND`.
|
|
The window can be scrolled using the mouse or custom key bindings.
|
|
|
|
```bash
|
|
# {} is replaced with the single-quoted string of the focused line
|
|
fzf --preview 'cat {}'
|
|
```
|
|
|
|
Preview window supports ANSI colors, so you can use any program that
|
|
syntax-highlights the content of a file, such as
|
|
[Bat](https://github.com/sharkdp/bat) or
|
|
[Highlight](http://www.andre-simon.de/doku/highlight/en/highlight.php):
|
|
|
|
```bash
|
|
fzf --preview 'bat --color=always {}' --preview-window '~3'
|
|
```
|
|
|
|
You can customize the size, position, and border of the preview window using
|
|
`--preview-window` option, and the foreground and background color of it with
|
|
`--color` option. For example,
|
|
|
|
```bash
|
|
fzf --height 40% --layout reverse --info inline --border \
|
|
--preview 'file {}' --preview-window up,1,border-horizontal \
|
|
--bind 'ctrl-/:change-preview-window(50%|hidden|)' \
|
|
--color 'fg:#bbccdd,fg+:#ddeeff,bg:#334455,preview-bg:#223344,border:#778899'
|
|
```
|
|
|
|
See the man page (`man fzf`) for the full list of options.
|
|
|
|
More advanced examples can be found [here](https://github.com/junegunn/fzf/blob/master/ADVANCED.md).
|
|
|
|
> [!WARNING]
|
|
> Since fzf is a general-purpose text filter rather than a file finder, **it is
|
|
> not a good idea to add `--preview` option to your `$FZF_DEFAULT_OPTS`**.
|
|
>
|
|
> ```sh
|
|
> # *********************
|
|
> # ** DO NOT DO THIS! **
|
|
> # *********************
|
|
> export FZF_DEFAULT_OPTS='--preview "bat --style=numbers --color=always --line-range :500 {}"'
|
|
>
|
|
> # bat doesn't work with any input other than the list of files
|
|
> ps -ef | fzf
|
|
> seq 100 | fzf
|
|
> history | fzf
|
|
> ```
|
|
|
|
### Previewing an image
|
|
|
|
fzf can display images in the preview window using one of the following protocols:
|
|
|
|
* [Kitty graphics protocol](https://sw.kovidgoyal.net/kitty/graphics-protocol/)
|
|
* [iTerm2 inline images protocol](https://iterm2.com/documentation-images.html)
|
|
* [Sixel](https://en.wikipedia.org/wiki/Sixel)
|
|
|
|
See [bin/fzf-preview.sh](bin/fzf-preview.sh) script for more information.
|
|
|
|
```sh
|
|
fzf --preview 'fzf-preview.sh {}'
|
|
```
|
|
|
|
Tips
|
|
----
|
|
|
|
### Respecting `.gitignore`
|
|
|
|
You can use [fd](https://github.com/sharkdp/fd),
|
|
[ripgrep](https://github.com/BurntSushi/ripgrep), or [the silver
|
|
searcher](https://github.com/ggreer/the_silver_searcher) to traverse the file
|
|
system while respecting `.gitignore`.
|
|
|
|
```sh
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|
# Feed the output of fd into fzf
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|
fd --type f --strip-cwd-prefix | fzf
|
|
|
|
# Setting fd as the default source for fzf
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|
export FZF_DEFAULT_COMMAND='fd --type f --strip-cwd-prefix'
|
|
|
|
# Now fzf (w/o pipe) will use the fd command to generate the list
|
|
fzf
|
|
|
|
# To apply the command to CTRL-T as well
|
|
export FZF_CTRL_T_COMMAND="$FZF_DEFAULT_COMMAND"
|
|
```
|
|
|
|
If you want the command to follow symbolic links and don't want it to exclude
|
|
hidden files, use the following command:
|
|
|
|
```sh
|
|
export FZF_DEFAULT_COMMAND='fd --type f --strip-cwd-prefix --hidden --follow --exclude .git'
|
|
```
|
|
|
|
### Fish shell
|
|
|
|
`CTRL-T` key binding of fish, unlike those of bash and zsh, will use the last
|
|
token on the command-line as the root directory for the recursive search. For
|
|
instance, hitting `CTRL-T` at the end of the following command-line
|
|
|
|
```sh
|
|
ls /var/
|
|
```
|
|
|
|
will list all files and directories under `/var/`.
|
|
|
|
When using a custom `FZF_CTRL_T_COMMAND`, use the unexpanded `$dir` variable to
|
|
make use of this feature. `$dir` defaults to `.` when the last token is not a
|
|
valid directory. Example:
|
|
|
|
```sh
|
|
set -g FZF_CTRL_T_COMMAND "command find -L \$dir -type f 2> /dev/null | sed '1d; s#^\./##'"
|
|
```
|
|
|
|
### fzf Theme Playground
|
|
|
|
[fzf Theme Playground](https://vitormv.github.io/fzf-themes/) created by
|
|
[Vitor Mello](https://github.com/vitormv) is a webpage where you can
|
|
interactively create fzf themes.
|
|
|
|
Related projects
|
|
----------------
|
|
|
|
https://github.com/junegunn/fzf/wiki/Related-projects
|
|
|
|
[License](LICENSE)
|
|
------------------
|
|
|
|
The MIT License (MIT)
|
|
|
|
Copyright (c) 2013-2024 Junegunn Choi
|