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< h1 align = "center" > nnn plugins< / h1 >
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< p align = "center" > < img src = "https://i.imgur.com/SpT0L2W.png" / > < / p >
< p align = "center" > < i > read ebooks with plugin gutenread (Android)< / i > < / p >
## Introduction
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Plugins extend the capabilities of `nnn` . They are _executable_ scripts (or binaries) `nnn` can communicate with and trigger. This mechanism fits perfectly with the fundamental design to keep the core file manager lean and fast, by delegating repetitive (but not necessarily file manager-specific) tasks to the plugins which can be run with custom hotkeys.
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`nnn` is _**language-agnostic**_ when it comes to plugins. You can write a plugin in any (scripting) language you are comfortable in!
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## List of plugins
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| Plugin (a-z) | Description [Clears selection< sup > 1< / sup > ] | Lang | Dependencies |
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| --- | --- | --- | --- |
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| [autojump ](autojump ) | Navigate to dir/path | sh | [jump ](https://github.com/gsamokovarov/jump )/autojump/< br > zoxide/z (needs fzf) |
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| [boom ](boom ) | Play random music from dir | sh | [moc ](http://moc.daper.net/ ) |
| [bulknew ](bulknew ) | Create multiple files/dirs at once | bash | sed, xargs, mktemp |
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| [cdpath ](cdpath ) | `cd` to the directory from `CDPATH` | sh | fzf |
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| [chksum ](chksum ) | Create and verify checksums [✓] | sh | md5sum,< br > sha256sum |
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| [cmusq ](cmusq ) | Queue/play files/dirs in cmus player [✓] | sh | cmus, pgrep |
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| [diffs ](diffs ) | Diff for selection (limited to 2 for directories) [✓] | sh | vimdiff, mktemp |
| [dragdrop ](dragdrop ) | Drag/drop files from/into nnn | sh | [dragon ](https://github.com/mwh/dragon ) |
| [dups ](dups ) | List non-empty duplicate files in current dir | bash | find, md5sum,< br > sort uniq xargs |
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| [finder ](finder ) | Run custom find command (**stored in histfile**) and list | sh | - |
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| [fixname ](fixname ) | Clean filename to be more shell-friendly [✓] | bash | sed |
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| [fzcd ](fzcd ) | Fuzzy search multiple dirs (or `$PWD` ) and visit file | sh | fzf, (find) |
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| [fzhist ](fzhist ) | Fuzzy-select a cmd from history, edit in `$EDITOR` and run | sh | fzf, mktemp |
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| [fzopen ](fzopen ) | Fuzzy find file(s) in subtree to edit/open/pick | sh | fzf, xdg-open/open |
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| [fzplug ](fzplug ) | Fuzzy find, preview and run other plugins | sh | fzf |
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| [getplugs ](getplugs ) | Update plugins to installed `nnn` version | sh | curl |
| [gpg\* ](gpg\* ) | Encrypt/decrypt files using GPG [✓] | sh | gpg |
| [gutenread ](gutenread ) | Browse, download, read from Project Gutenberg | sh | curl, unzip, w3m< br > [epr](https://github.com/wustho/epr) (optional) |
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| [imgresize ](imgresize ) | Batch resize images in dir to screen resolution | sh | [imgp ](https://github.com/jarun/imgp ) |
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| [imgur ](imgur ) | Upload an image to imgur (from [imgur-screenshot ](https://github.com/jomo/imgur-screenshot )) | bash | - |
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| [imgview ](imgview ) | View (thumbnail)images, set wallpaper, [rename ](https://github.com/jarun/nnn/wiki/Basic-use-cases#browse-rename-images ) and [more ](https://wiki.archlinux.org/index.php/Sxiv#Assigning_keyboard_shortcuts )| sh | _see in-file docs_ |
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| [ipinfo ](ipinfo ) | Fetch external IP address and whois information | sh | curl, whois |
| [kdeconnect ](kdeconnect ) | Send selected files to an Android device [✓] | sh | kdeconnect-cli |
| [launch ](launch ) | GUI application launcher | sh | fzf |
| [mimelist ](mimelist ) | List files by mime in subtree | sh | - |
| [moclyrics ](moclyrics ) | Show lyrics of the track playing in moc | sh | [ddgr ](https://github.com/jarun/ddgr ), [moc ](http://moc.daper.net/ ) |
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| [mocq ](mocq ) | Queue/play selection/dir/file in moc [✓] | sh | [moc ](http://moc.daper.net/ ) |
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| [mp3conv ](mp3conv ) | Extract audio from multimedia as mp3 | sh | ffmpeg |
| [mtpmount ](mtpmount ) | Toggle mount of MTP device (eg. Android) | sh | gvfs-mtp |
| [nbak ](nbak ) | Backs up `nnn` config | sh | tar, awk, mktemp |
| [nmount ](nmount ) | Toggle mount status of a device as normal user | sh | pmount, udisks2 |
| [nuke ](nuke ) | Sample file opener (CLI-only by default) | sh | _see in-file docs_ |
| [oldbigfile ](oldbigfile ) | List large files by access time | sh | find, sort |
| [organize ](organize ) | Auto-organize files in directories by file type [✓] | sh | file |
| [pdfread ](pdfread ) | Read a PDF or text file aloud | sh | pdftotext, mpv,< br > pico2wave |
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| [preview-tabbed ](preview-tabbed ) | Preview files with Tabbed/xembed | bash | _see in-file docs_ |
| [preview-tui ](preview-tui ) | Preview with Tmux/kitty/[QuickLook](https://github.com/QL-Win/QuickLook)/xterm/`$TERMINAL` | sh | _see in-file docs_ |
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| [pskill ](pskill ) | Fuzzy list by name and kill process or zombie | sh | fzf, ps, sudo/doas |
| [renamer ](renamer ) | Batch rename selection or files in dir [✓] | sh | [qmv ](https://www.nongnu.org/renameutils/ )/[vidir](https://joeyh.name/code/moreutils/) |
| [ringtone ](ringtone ) | Create a variable bitrate mp3 ringtone from file | sh | date, ffmpeg |
| [rsynccp ](rsynccp ) | Gives copy-paste verbose progress percentage [✓] | sh | rsync |
| [splitjoin ](splitjoin ) | Split file or join selection [✓] | sh | split, cat |
| [suedit ](suedit ) | Edit file using superuser permissions | sh | sudoedit/sudo/doas |
| [togglex ](togglex ) | Toggle executable mode for selection [✓] | sh | chmod |
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| [umounttree ](umounttree ) | Unmount a remote mountpoint from within | sh | fusermount |
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| [upload ](upload ) | Upload to Firefox Send or ix.io (text) or file.io (bin) | sh | [ffsend ](https://github.com/timvisee/ffsend ), curl, jq, tr |
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| [wallpaper ](wall ) | Set wallpaper or change colorscheme | sh | nitrogen/pywal |
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| [x2sel ](x2sel ) | Copy file list from system clipboard to selection | sh | _see in-file docs_ |
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| [xdgdefault ](xdgdefault ) | Set the default app for the hovered file type | sh | xdg-utils, fzf/dmenu |
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Note:
1. A plugin has to explicitly request `nnn` to clear the selection e.g. after operating on the selected files.
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### Table of contents
- [Installation ](#installation )
- [Configuration ](#configuration )
- [Skip directory refresh after running a plugin ](#skip-directory-refresh-after-running-a-plugin )
- [Running commands as plugin ](#running-commands-as-plugin )
- [Skip user confirmation after command execution ](#skip-user-confirmation-after-command-execution )
- [Run a GUI app as plugin ](#run-a-gui-app-as-plugin )
- [Page non-interactive command output ](#page-non-interactive-command-output )
- [Some useful key-command examples ](#some-useful-key-command-examples )
- [Access level of plugins ](#access-level-of-plugins )
- [Create your own plugins ](#create-your-own-plugins )
- [Send data to `nnn` ](#send-data-to-nnn )
- [Get notified on file hover ](#get-notified-on-file-hover )
- [Examples ](#examples )
- [Contributing plugins ](#contributing-plugins )
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## Installation
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The following command installs or updates (after backup) all plugins:
```sh
curl -Ls https://raw.githubusercontent.com/jarun/nnn/master/plugins/getplugs | sh
```
Plugins are installed to `${XDG_CONFIG_HOME:-$HOME/.config}/nnn/plugins` .
## Configuration
Set environment variable `NNN_PLUG` to assign keybinds and invoke plugins directly using the plugin shortcut (< kbd > ;</ kbd > ) followed by the assigned key character. E.g., with the below config:
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```sh
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export NNN_PLUG='f:finder;o:fzopen;p:mocplay;d:diffs;t:nmount;v:imgview'
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```
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plugin `finder` can be invoked with the keybind < kbd > ;f</ kbd > , `fzopen` can be run with < kbd > ;o</ kbd > and so on... The key vs. plugin pairs are shown in the help and config screen.
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Alternatively, combine with < kbd > Alt< / kbd > (i.e. < kbd > Alt+key< / kbd > ).
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To pick and run an unassigned plugin, press < kbd > Enter</ kbd > (to _enter_ the plugin dir) at the plugin prompt.
To run a plugin at startup, use the option `-P` followed by the plugin key.
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If the plugins list gets too long, try breaking them up into sections:
```
NNN_PLUG_PERSONAL='g:personal/convert2zoom;p:personal/echo'
NNN_PLUG_WORK='j:work/prettyjson;d:work/foobar'
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NNN_PLUG_INLINE='e:!go run $nnn*'
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NNN_PLUG_DEFAULT='1:ipinfo;p:preview-tui;o:fzz;b:nbak'
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NNN_PLUG="$NNN_PLUG_PERSONAL;$NNN_PLUG_WORK;$NNN_PLUG_DEFAULT;$NNN_PLUG_INLINE"
export NNN_PLUG
```
Note:
- `'g:personal/convert2zoom'` will look in the personal sub-folder inside the plugin folder.
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- `'b:boom;b:bulknew` will result in only the first definition of *b* (`b:boom`) being used.
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- A keybinding definition of more than 1 character will prevent nnn from starting.
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#### Skip directory refresh after running a plugin
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`nnn` refreshes the directory after running a plugin to reflect any changes by the plugin. To disable this add a `-` before the plugin name:
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```sh
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export NNN_PLUG='p:-plugin'
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```
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## Running commands as plugin
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To assign keys to arbitrary non-background cli commands and invoke like plugins, add `!` (underscore) before the command.
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```sh
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export NNN_PLUG='x:!chmod +x $nnn;g:!git log;s:!smplayer $nnn'
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```
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Now < kbd > ;x< / kbd > can be used to make a file executable, < kbd > ;g< / kbd > can be used to the git log of a git project directory, < kbd > ;s< / kbd > can be used to preview a partially downloaded media file.
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#### Skip user confirmation after command execution
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`nnn` waits for user confirmation (the prompt `Press Enter to continue` ) after it executes a command as plugin (unlike plugins which can add a `read` to wait). To skip this, add a `*` after the command.
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```sh
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export NNN_PLUG='s:!smplayer $nnn*;n:-!vim /home/vaio/Dropbox/Public/synced_note*'
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```
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Now there will be no prompt after < kbd > ;s< / kbd > and < kbd > ;n< / kbd > .
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Note: Do not use `*` with programs those run and exit e.g. cat.
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#### Run a GUI app as plugin
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To run a GUI app as plugin, add a `&` after `!` .
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```sh
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export NNN_PLUG='m:-!& mousepad $nnn'
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```
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Note: `$nnn` must be the last argument in this case.
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#### Page non-interactive command output
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To show the output of run-and-exit commands which do not need user input, add `|` (pipe) after `!` .
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```sh
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export NNN_PLUG='m:-!|mediainfo $nnn;t:-!|tree -ps;l:-!|ls -lah --group-directories-first'
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```
This option is incompatible with `&` (terminal output is masked for GUI programs) and ignores `*` (output is already paged for user).
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Notes:
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1. Use single quotes for `$NNN_PLUG` so `$nnn` is not interpreted
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2. (_Again_) add `!` before the command
3. To disable directory refresh after running a _command as plugin_ , prefix with `-!`
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#### Some useful key-command examples
| Key:Command | Description |
|---|---|
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| `c:!convert $nnn png:- \| xclip -sel clipboard -t image/png*` | Copy image to clipboard |
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| `e:-!sudo -E vim $nnn*` | Edit file as root in vim |
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| `g:-!git diff` | Show git diff |
| `h:-!hx $nnn*` | Open hovered file in [hx ](https://github.com/krpors/hx ) hex editor |
| `k:-!fuser -kiv $nnn*` | Interactively kill process(es) using hovered file |
| `l:-!git log` | Show git log |
| `n:-!vi /home/user/Dropbox/dir/note*` | Take quick notes in a synced file/dir of notes |
| `p:-!less -iR $nnn*` | Page through hovered file in less |
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| `s:-!&smplayer -minigui $nnn` | Play hovered media file, even unfinished download |
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| `x:!chmod +x $nnn` | Make the hovered file executable |
| `y:-!sync*` | Flush cached writes |
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## Access level of plugins
When `nnn` executes a plugin, it does the following:
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- Changes to the directory where the plugin is to be run (`$PWD` pointing to the active directory)
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- Passes three arguments to the script:
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1. `$1` : The hovered file's name.
2. `$2` : The working directory (might differ from `$PWD` in case of symlinked paths; non-canonical).
3. `$3` : The picker mode output file (`-` for stdout) if `nnn` is executed as a file picker.
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- Sets the environment variable `NNN_PIPE` used to control `nnn` active directory.
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- Exports the [special variables ](https://github.com/jarun/nnn/wiki/Concepts#special-variables ).
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Plugins can also read the `.selection` file in the config directory.
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## Create your own plugins
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Plugins can be written in any scripting language. However, POSIX-compliant shell scripts runnable in `sh` are preferred.
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**Make the file executable**. Drop it in the plugin directory. Optionally add a hotkey in `$NNN_PLUG` for frequent usage.
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#### Send data to `nnn`
`nnn` provides a mechanism for plugins to send data to `nnn` to control its active directory or invoke the list mode.
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The way to do so is by writing to the pipe pointed by the environment variable `NNN_PIPE` .
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The plugin should write a single string in the format `(<->)<ctxcode><opcode><data>` without a newline at the end. For example, `1c/etc` .
The optional `-` at the **beginning of the stream** instructs `nnn` to clear the selection.
In cases where the data transfer to `nnn` has to happen while the selection file is being read (e.g. in a loop), the plugin should
create a tmp copy of the selection file, inform `nnn` to clear the selection and then do the subsequent processing with the tmp file.
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The `ctxcode` indicates the context to change the active directory of.
| Context code | Meaning |
|:---:| --- |
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| `+` | smart context (next inactive else current) |
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| `0` | current context |
| `1` -`4` | context number |
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The `opcode` indicates the operation type.
| Opcode | Operation |
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|:---:| --- |
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| `c` | change directory |
| `l` | list files in list mode |
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| `p` | picker file overwritten |
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For convenience, we provided a helper script named `.nnn-plugin-helper` and a function named `nnn_cd` to ease this process. `nnn_cd` receives the path to change to as the first argument, and the context as an optional second argument.
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If a context is not provided, it is asked for explicitly. To skip this and choose the current context, set the `CUR_CTX` variable in `.nnn-plugin-helper` (or in the specific plugin after sourcing `.nnn-plugin-helper` ) to 1.
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Usage examples can be found in the Examples section below.
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#### Get notified on file hover
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If `NNN_FIFO` is set, `nnn` will open it and write every hovered files. This can be used in plugins and external scripts, e.g. to implement file previews.
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Don't forget to fork in the background to avoid blocking `nnn` .
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For more details on configuration and usage of the preview plugins, visit [Live Previews ](https://github.com/jarun/nnn/wiki/Live-previews ).
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## Examples
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There are many plugins provided by `nnn` which can be used as examples. Here are a few simple selected examples.
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#### Show the git log of changes to the particular file along with the code for a quick and easy review.
```sh
#!/usr/bin/env sh
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git log -p -- "$1"
```
#### Change to directory in clipboard using helper script
```sh
#!/usr/bin/env sh
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. $(dirname $0)/.nnn-plugin-helper
nnn_cd "$(xsel -ob)"
```
#### Change directory to the location of a link using helper script with specific context (current)
```sh
#!/usr/bin/env sh
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. $(dirname $0)/.nnn-plugin-helper
nnn_cd "$(dirname $(readlink -fn $1))" 0
```
#### Change to arbitrary directory without helper script
```sh
#!/usr/bin/env sh
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printf "cd to: "
read -r dir
printf "%s" "0c$dir" > "$NNN_PIPE"
```
#### Send every hovered file to X selection
```sh
#!/usr/bin/env sh
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if [ -z "$NNN_FIFO" ] ; then
exit 1
fi
while read FILE ; do
printf "%s" "$FILE" | xsel
done < "$NNN_FIFO" &
disown
```
#### Quick find (using `fd`)
```sh
#!/usr/bin/env sh
. "$(dirname "$0")"/.nnn-plugin-helper
printf "pattern: "
read -r pattern
if [ -n "$pattern" ]; then
printf "%s" "+l" > "$NNN_PIPE"
eval "fd -HI $pattern -0" > "$NNN_PIPE"
fi
```
#### Quick grep (using `rg`)
```sh
#!/usr/bin/env sh
. "$(dirname "$0")"/.nnn-plugin-helper
printf "pattern: "
read -r pattern
if [ -n "$pattern" ]; then
printf "%s" "+l" > "$NNN_PIPE"
eval "rg -l0 --hidden -S $pattern" > "$NNN_PIPE"
fi
```
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## Contributing plugins
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1. Add informative sections like _Description_ , _Notes_ , _Dependencies_ , _Shell_ , _Author_ etc. in the plugin.
2. Add an entry in the table above.
3. Keep non-portable commands (like `notify-send` ) commented so users from any other OS/DE aren't surprised.
4. The plugin file should be executable.
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5. If your plugin stores data, use `${XDG_CACHE_HOME:-$HOME/.cache}/nnn` . Document it _in-file_ .