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< h1 align = "center" > nnn plugins< / h1 >
< p align = "center" > < img src = "https://i.imgur.com/14iPDIq.png" / > < / p >
< p align = "center" > < i > image preview with plugin thumb< / i > < / p >
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Plugins extend the capabilities of `nnn` . They are _executable_ scripts (or binaries) which `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.
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The currently available plugins are listed below.
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| Plugin (a-z) | Lang | Deps | Description |
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| --- | --- | --- | --- |
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| boom | sh | [moc ](http://moc.daper.net/ ) | Play random music from dir |
| dups | sh | find, md5sum,< br > sort uniq xargs | List non-empty duplicate files in current dir |
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| checksum | sh | md5sum,< br > sha256sum | Create and verify checksums |
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| dragdrop | sh | [dragon ](https://github.com/mwh/dragon ) | Drag/drop files from/into nnn |
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| exetoggle | sh | chmod | Toggle executable status of hovered file |
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| fzcd | sh | fzy/fzf< br > (optional fd) | Change to the directory of a fuzzy-selected file/dir |
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| fzhist | sh | fzy | Fuzzy-select a cmd from history, edit in $EDITOR and run |
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| fzopen | sh | fzy, xdg-open | Fuzzy find a file in dir subtree and edit or xdg-open |
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| getplugs | sh | curl | Update plugins |
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| gutenread | sh | curl, unzip, w3m< br > [epr](https://github.com/wustho/epr) (optional)| Browse, download, read from Project Gutenberg |
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| hexview | sh | xxd | View a file in hex in `$PAGER` |
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| imgresize | sh | [imgp ](https://github.com/jarun/imgp ) | Resize images in dir to screen resolution |
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| imgur | bash | - | Upload an image to imgur (from [imgur-screenshot ](https://github.com/jomo/imgur-screenshot )) |
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| ipinfo | sh | curl, whois | Fetch external IP address and whois information |
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| kdeconnect | sh | kdeconnect-cli | Send selected files to an Android device |
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| mediainf | sh | mediainfo | Show media information |
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| moclyrics | sh | [ddgr ](https://github.com/jarun/ddgr ), [moc ](http://moc.daper.net/ ) | Show lyrics of the track playing in moc |
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| mocplay | sh | [moc ](http://moc.daper.net/ ) | Append (and/or play) selection/dir/file in moc|
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| ndiff | sh | vimdiff | Diff for selection (limited to 2 for directories) |
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| nmount | sh | pmount, udisks2 | Toggle mount status of a device as normal user |
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| notes | sh | - | Open a quick notes file/dir in `$EDITOR` |
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| nwal | sh | nitrogen | Set image as wallpaper using nitrogen |
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| oldbigfile | sh | find, sort | List large files by access time |
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| organize | sh | file | Auto-organize files in directories by file type |
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| pastebin | sh | - | Paste contents of a text a file ix.io |
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| pdfview | sh | pdftotext/< br > mupdf-tools | View PDF file in `$PAGER` |
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| picker | sh | nnn | Pick files and list one per line (to pipe) |
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| pskill | sh | fzy, sudo/doas | Fuzzy list by name and kill process or zombie |
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| pywal | sh | pywal | Set image as wallpaper, change terminal colorscheme |
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| readit | sh | pdftotext, mpv,< br > pico2wave | Read a PDF or text file aloud |
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| ringtone | sh | date, ffmpeg | Create a variable bitrate mp3 ringtone from file |
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| splitjoin | sh | split, cat | Split file or join selection |
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| suedit | sh | sudoedit/sudo/doas | Edit file using superuser permissions |
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| sxiv | sh | sxiv | View images in dir, set wallpaper, copy path ([config](https://wiki.archlinux.org/index.php/Sxiv#Assigning_keyboard_shortcuts))|
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| thumb | sh | [lsix ](https://github.com/hackerb9/lsix ) | View thumbnail of an image or dir of images |
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| transfer | sh | curl | Upload file to transfer.sh |
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| treeview | sh | tree | Informative tree output in `$EDITOR` |
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| uidgid | sh | ls, less | List user and group of all files in dir |
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| upgrade | sh | curl | Upgrade nnn manually on Debian 9 Stretch |
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| vidthumb | sh | [ffmpegthumbnailer ](https://github.com/dirkvdb/ffmpegthumbnailer ),< br > [lsix](https://github.com/hackerb9/lsix) | Show video thumbnails in terminal |
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| viuimg | sh | [viu ](https://github.com/atanunq/viu ), less | View an image or images in dir in `$PAGER` |
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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 >
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## Installing plugins
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The following command installs all plugins:
curl -Ls https://raw.githubusercontent.com/jarun/nnn/master/plugins/getplugs | sh
Plugins are installed to `${XDG_CONFIG_HOME:-$HOME/.config}/nnn/plugins` . You can run the `getplugs` plugin later to update the plugins. It backs up earlier plugins.
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**NOTE:** `getplugs` also downloads the launcher `nlaunch` and tries to place it at `/usr/local/bin/` using `sudo` . If it fails you have to place `nlauch` manually somewhere in your `$PATH` .
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## Executing plugins
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**Method 1:** Directly with < kbd > :key< / kbd > :
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export NNN_PLUG='o:fzopen;p:mocplay;d:ndiff;m:nmount;n:notes;v:viuimg;t:thumb'
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Now plugin `fzopen` can be run with the keybind < kbd > :o</ kbd > , `mocplay` can be run with < kbd > :p</ kbd > and so on... The key vs. plugin pairs are shown in the help and config screen.
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**Method 2:** Use the _pick plugin_ shortcut to visit the plugin directory and execute a plugin. Repeating the same shortcut cancels the operation and puts you back in the original directory.
## Running commands as plugin
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To assign keys to arbitrary non-background cli commands (non-shell-interpreted) and invoke like plugins, add `_` (underscore) before the command. For example:
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export NNN_PLUG='x:_chmod +x $NNN;g:_git log;s:_smplayer $NNN;o:fzopen'
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Now < kbd > :x< / kbd > can be used to make a file executable, < kbd > :g< / kbd > can be used to the git log of a git project directory, < kbd > :s< / kbd > can be used to preview a partially downloaded media file.
Notes:
1. Use single quotes for `$NNN_PLUG` so `$NNN` is not interpreted
2. `$NNN` should be the last argument (IF you want to pass the hovered file name)
3. (_Again_) add `_` before the command
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## Access level of plugins
When `nnn` executes a plugin, it does the following:
- Change to the directory where the plugin is to be run (`$PWD` pointing to the active directory)
- Passes two arguments to the script:
1. The hovered file's name.
2. The working directory (might differ from `$PWD` in case of symlinked paths; non-canonical). Note that the second argument is not passed in case of commands starting with `_` .
- Sets the environment variable `NNN_PIPE` used to control `nnn` active directory.
Plugins can also access the current selections by reading the `.selections` file in the config directory (See the `ndiff` plugin for example).
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## Create your own plugins
Plugins are a powerful yet easy way to extend the capabilities of `nnn` .
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Plugins are scripts that can be written in any scripting language. However, POSIX-compliant shell scripts runnable in `sh` are preferred.
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Each script has a _Description_ section which provides more details on what the script does, if applicable.
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The plugins reside in `${XDG_CONFIG_HOME:-$HOME/.config}/nnn/plugins` .
#### Controlling `nnn`'s active directory
`nnn` provides a mechanism for plugins to control its active directory.
The way to do so is by writing to the pipe pointed by the environment variable `NNN_PIPE` .
The plugin should write a single string in the format `<number><path>` without a newline at the end. For example, `1/etc` .
The number indicates the context to change the active directory of (0 is used to indicate the current context).
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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.
If a context is not provided, it is asked for explicitly.
Usage examples can be found in the Examples section below.
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#### Examples
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
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#!/usr/bin/env sh
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git log -p -- "$1"
```
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- Change to directory in clipboard using helper script
```sh
#!/usr/bin/env sh
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. $(dirname $0)/.nnn-plugin-helper
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nnn_cd "$(xsel -ob)"
```
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- Change direcory to the location of a link using helper script with specific context (current)
```sh
#!/usr/bin/env sh
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. $(dirname $0)/.nnn-plugin-helper
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nnn_cd "$(dirname $(readlink -fn $1))" 0
```
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- Change to arbitrary directory without helper script
```sh
#!/usr/bin/env sh
echo -n "cd to: "
read dir
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echo -n "0$dir" > $NNN_PIPE
```
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## Contributing plugins
Please keep non-portable commands (like `notify-send` ) commented so users from any other OS/DE aren't surprised.
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The plugins should be executable. Please add an entry in the table above.