My build of nnn with minor changes
選択できるのは25トピックまでです。 トピックは、先頭が英数字で、英数字とダッシュ('-')を使用した35文字以内のものにしてください。

README.md 24 KiB

5年前
5年前
5年前
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  1. <h2 align="center">nnn (<i>type less, do more, way faster</i>)</h2>
  2. <p align="center">
  3. <a href="https://github.com/jarun/nnn/releases/latest"><img src="https://img.shields.io/github/release/jarun/nnn.svg?maxAge=600" alt="Latest release" /></a>
  4. <a href="http://formulae.brew.sh/formula/nnn"><img src="https://img.shields.io/homebrew/v/nnn.svg?maxAge=600" alt="Homebrew" /></a>
  5. <a href="https://www.archlinux.org/packages/community/x86_64/nnn/"><img src="https://img.shields.io/badge/archlinux-rolling-blue.svg?maxAge=600" alt="Arch Linux" /></a>
  6. <a href="https://packages.debian.org/search?keywords=nnn&searchon=names&exact=1"><img src="https://img.shields.io/badge/debian-10+-blue.svg?maxAge=2592000" alt="Debian Buster+" /></a>
  7. <a href="https://apps.fedoraproject.org/packages/nnn"><img src="https://img.shields.io/badge/fedora-27+-blue.svg?maxAge=2592000" alt="Fedora 27+" /></a>
  8. <a href="https://software.opensuse.org/package/nnn"><img src="https://img.shields.io/badge/opensuse%20leap-15.0+-blue.svg?maxAge=2592000" alt="openSUSE Leap 15.0+" /></a>
  9. <a href="https://packages.ubuntu.com/search?keywords=nnn&searchon=names&exact=1"><img src="https://img.shields.io/badge/ubuntu-17.10+-blue.svg?maxAge=2592000" alt="Ubuntu Artful+" /></a>
  10. </p>
  11. <p align="center">
  12. <a href="https://repology.org/metapackage/nnn"><img src="https://repology.org/badge/tiny-repos/nnn.svg" alt="Availability"></a>
  13. <a href="https://travis-ci.org/jarun/nnn"><img src="https://img.shields.io/travis/jarun/nnn/master.svg?label=travis" alt="Travis Status" /></a>
  14. <a href="https://circleci.com/gh/jarun/workflows/nnn"><img src="https://img.shields.io/circleci/project/github/jarun/nnn.svg?label=circleci" alt="CircleCI Status" /></a>
  15. <a href="https://github.com/jarun/nnn/blob/master/LICENSE"><img src="https://img.shields.io/badge/license-BSD%202--Clause-yellow.svg?maxAge=2592000" alt="License" /></a>
  16. <a href="https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=RMLTQ76JSXJ4Q"><img src="https://img.shields.io/badge/PayPal-donate-1eb0fc.svg" alt="Donate via PayPal!" /></a>
  17. </p>
  18. <p align="center">
  19. <a href="https://www.youtube.com/watch?v=U2n5aGqou9E"><img src="https://i.imgur.com/onpq3vP.png" /></a>
  20. </p>
  21. <p align="center"><i>Modes of nnn (light with filter, detail, du analyzer) with memory usage (click for a demo video)</i></a></p>
  22. #### TABLE OF CONTENTS
  23. - [Introduction](#introduction)
  24. - [Features](#features)
  25. - [Installation](#installation)
  26. - [Library dependencies](#library-dependencies)
  27. - [Utility dependencies](#utility-dependencies)
  28. - [From a package manager](#from-a-package-manager)
  29. - [Release packages](#release-packages)
  30. - [From source](#from-source)
  31. - [Shell completion](#shell-completion)
  32. - [Quickstart](#quickstart)
  33. - [Usage](#usage)
  34. - [Configuration](#configuration)
  35. - [Cmdline options](#cmdline-options)
  36. - [Keyboard and mouse](#keyboard-and-mouse)
  37. - [Leader key](#leader-key)
  38. - [Contexts](#contexts)
  39. - [Context-specific color](#context-specific-color)
  40. - [Dual pane](#dual-pane)
  41. - [Selection](#selection)
  42. - [Filters](#filters)
  43. - [Navigate-as-you-type](#navigate-as-you-type)
  44. - [File indicators](#file-indicators)
  45. - [Hot-plugged drives](#hot-plugged-drives)
  46. - [SSHFS mounts](#sshfs-mounts)
  47. - [Help](#help)
  48. - [Troubleshooting](#troubleshooting)
  49. - [Tmux configuration](#tmux-configuration)
  50. - [BSD terminal issue](#bsd-terminal-issue)
  51. - [100% CPU usage](#100-cpu-usage)
  52. - [Why fork?](#why-fork)
  53. - [Mentions](#mentions)
  54. - [Developers](#developers)
  55. #### INTRODUCTION
  56. `nnn` is a full-featured file manager for low-end devices and the regular desktop. It's extremely light and fast (**[performance](https://github.com/jarun/nnn/wiki/performance)**).
  57. `nnn` is also a disk usage analyzer, a fuzzy app launcher, a batch file renamer and a file picker. Many **[plugins](https://github.com/jarun/nnn/tree/master/plugins)** are available to extend its power. Custom plugins are easy to add. There's an independent [(neo)vim picker plugin](https://github.com/mcchrish/nnn.vim) project.
  58. It runs on Linux, macOS, Raspberry Pi, BSD, Cygwin, Linux subsystem for Windows and Termux on Android.
  59. `nnn` works seamlessly with DEs and GUI utilities. It's nearly zero-config (with sensible defaults) and can be setup in less than 5 minutes. **[Quickstart](#quickstart)** and see how `nnn` simplifies workflows.
  60. Visit the **[wiki](https://github.com/jarun/nnn/wiki)** for more.
  61. Here's a video of [`nnn` on Termux (Android)](https://www.youtube.com/watch?v=AbaauM7gUJw).
  62. #### FEATURES
  63. - Modes
  64. - Detail (default), light
  65. - Disk usage analyzer (block/apparent)
  66. - File picker, (neo)vim plugin
  67. - Navigation
  68. - *Navigate-as-you-type* with dir auto-select, *wild load*
  69. - 4 contexts (_aka_ tabs/workspaces)
  70. - Bookmarks; pin and visit a directory
  71. - Familiar, easy shortcuts (arrows, <kbd>~</kbd>, <kbd>-</kbd>, <kbd>@</kbd>)
  72. - Sorting
  73. - Ordered pure numeric names by default (visit _/proc_)
  74. - Case-insensitive version (_aka_ natural) sort
  75. - Sort by file name, modification time, size, file extension
  76. - Search
  77. - Instant filtering with *search-as-you-type*
  78. - Regex and substring match
  79. - Subtree search to open or edit files (using plugin)
  80. - Mimes
  81. - Open with desktop opener or specify a custom app
  82. - Create, list, extract archives
  83. - Option to open all text files in EDITOR
  84. - Information
  85. - Detailed file information
  86. - Media information (needs mediainfo/exiftool)
  87. - Plugins
  88. - (Un)mount external drives
  89. - File and directory diff
  90. - Play selection in MOC
  91. - View PDF as text
  92. - View images/thumbnails in terminal
  93. - Upload image to Imgur
  94. - Paste text to Ubuntu pastebin
  95. - Upload file to transfer.sh
  96. - Split and join files
  97. - Create MP3 ringtones
  98. - Calculate and verify checksums
  99. - Read a text file
  100. - Hex viewer
  101. - and more...
  102. - Convenience
  103. - Needs minimal configuration
  104. - Select files across dirs; all/range selection
  105. - Copy, move, delete, archive, link selection
  106. - Batch rename selection or dir entries
  107. - FreeDesktop compliant trash (needs trash-cli)
  108. - SSHFS mounts (needs sshfs)
  109. - Mouse support
  110. - Create, rename, duplicate files and directories
  111. - Show copy, move progress on Linux (needs avdcpmv)
  112. - Per-context directory color (default: blue)
  113. - Spawn a shell in the current directory
  114. - Launch applications, run a command
  115. - Run current file as executable
  116. - Change directory at exit (*easy* shell integration)
  117. - Edit file in EDITOR or open in PAGER
  118. - Take quick notes
  119. - Lock the terminal (needs a locker)
  120. - Shortcut reference a keypress away
  121. - Unicode support
  122. - Follows Linux kernel coding style
  123. - Highly optimized, static analysis integrated code
  124. - Minimal library dependencies
  125. - Available on many distros
  126. #### INSTALLATION
  127. #### Library dependencies
  128. `nnn` needs a curses library with wide character support (like ncursesw), libreadline and standard libc. It's possible to drop libreadline using the Makefile target `norl`.
  129. #### Utility dependencies
  130. | Dependency | Installation | Operation |
  131. | --- | --- | --- |
  132. | xdg-open (Linux), open(1) (macOS), cygstart (Cygwin) | base | desktop opener |
  133. | file, coreutils (cp, mv, rm), findutils (xargs) | base | file type, copy, move and remove |
  134. | tar, (un)zip [atool/bsdtar for more formats] | base | create, list, extract tar, gzip, bzip2, zip |
  135. | mediainfo / exiftool | if needed | multimedia file details |
  136. | sshfs, fusermount(3) | if needed | mount, unmount over SSHFS |
  137. | trash-cli | optional | trash files (default action: delete) |
  138. | vlock (Linux), bashlock (macOS), lock(1) (BSD) | optional | terminal locker (fallback: [cmatrix](https://github.com/abishekvashok/cmatrix)) |
  139. | advcpmv (Linux) ([integration](https://github.com/jarun/nnn/wiki/hacking-nnn#show-cp-mv-progress)) | optional | copy, move progress |
  140. | `$VISUAL` (else `$EDITOR`), `$PAGER`, `$SHELL` | optional | fallback vi, less, sh |
  141. #### From a package manager
  142. There's a good chance `nnn` is already available in the default repos of your distro. Find a list of known packagers below.
  143. - [Alpine Linux](https://pkgs.alpinelinux.org/packages?name=nnn) (`apk add nnn`)
  144. - [Arch Linux](https://www.archlinux.org/packages/community/x86_64/nnn/) (`pacman -S nnn`)
  145. - [CRUX](https://crux.nu/portdb/?a=search&q=nnn) (`prt-get depinst nnn`)
  146. - [Debian](https://packages.debian.org/search?keywords=nnn&searchon=names&exact=1) (`apt-get install nnn`)
  147. - [Fedora](https://apps.fedoraproject.org/packages/nnn) (`dnf install nnn`)
  148. - [FreeBSD](https://svnweb.freebsd.org/ports/head/misc/nnn/) (`pkg install nnn`)
  149. - [Gentoo](https://packages.gentoo.org/packages/app-misc/nnn) (`emerge nnn`)
  150. - [macOS/Homebrew](http://formulae.brew.sh/formula/nnn) (`brew install nnn`)
  151. - [MacPorts](https://www.macports.org/ports.php?by=name&substr=nnn) (`port install nnn`)
  152. - [Milis Linux](https://notabug.org/milislinux/milis/src/master/talimatname/genel/n/nnn/talimat) (`mps kur nnn`)
  153. - [NixOS](https://github.com/NixOS/nixpkgs/tree/master/pkgs/applications/misc/nnn) (`nix-env -i nnn`)
  154. - [NuTyX](https://www.nutyx.org/en/?type=pkg&branch=rolling&arch=x86_64&searchpkg=nnn) (`cards install nnn`)
  155. - [OpenBSD](https://cvsweb.openbsd.org/cgi-bin/cvsweb/ports/sysutils/nnn/) (`pkg_add nnn`)
  156. - [openSUSE](https://software.opensuse.org/package/nnn) (and packages for several other distros) (`zypper in nnn`)
  157. - [pkgrsc](http://pkgsrc.se/sysutils/nnn) (`pkg_add nnn`)
  158. - [Raspbian Testing](https://archive.raspbian.org/raspbian/pool/main/n/nnn/) (`apt-get install nnn`)
  159. - [Slackware](http://slackbuilds.org/repository/14.2/system/nnn/) (`slackpkg install nnn`)
  160. - [Solus](https://packages.getsol.us/shannon/n/nnn/) (`eopkg install nnn`)
  161. - [Source Mage](http://codex.sourcemage.org/test/shell-term-fm/nnn/) (`cast nnn`)
  162. - [Termux](https://github.com/termux/termux-packages/tree/master/packages/nnn) (`pkg in nnn`)
  163. - [Ubuntu](https://packages.ubuntu.com/search?keywords=nnn&searchon=names&exact=1) (`apt-get install nnn`)
  164. - [Void Linux](https://github.com/void-linux/void-packages/tree/master/srcpkgs/nnn) (`xbps-install -S nnn`)
  165. #### Release packages
  166. Packages for Arch Linux, CentOS, Debian, Fedora and Ubuntu are available with the [latest stable release](https://github.com/jarun/nnn/releases/latest).
  167. #### From source
  168. To cook yourself, download the [latest stable release](https://github.com/jarun/nnn/releases/latest) or clone this repository (*risky*). Then install the dependencies and compile (e.g. on Ubuntu 16.04):
  169. $ sudo apt-get install pkg-config libncursesw5-dev libreadline6-dev
  170. $ make
  171. $ sudo make strip install
  172. `PREFIX` is supported, in case you want to install to a different location.
  173. - Compilation notes for [Raspberry Pi](https://github.com/jarun/nnn/issues/182)
  174. - Instructions for [Cygwin](https://github.com/jarun/nnn/wiki/Cygwin-instructions)
  175. #### Shell completion
  176. Option completion scripts for Bash, Fish and Zsh can be found in respective subdirectories of [`misc/auto-completion/`](misc/auto-completion). Please refer to your shell's manual for installation instructions.
  177. #### QUICKSTART
  178. 1. Install the [utilities you may need](#utility-dependencies) based on your regular workflows.
  179. 2. Configure [cd on quit](https://github.com/jarun/nnn/wiki/hacking-nnn#cd-on-quit).
  180. 3. Optionally open all text files in `$EDITOR` (fallback vi): `export NNN_USE_EDITOR=1`
  181. 4. For additional functionality [install plugins](https://github.com/jarun/nnn/tree/master/plugins#installing-plugins) and the GUI app launcher [`nlaunch`](https://github.com/jarun/nnn/tree/master/misc/nlaunch).
  182. - Don't memorize keys. Arrows, <kbd>/</kbd> and <kbd>q</kbd> suffice. Press <kbd>?</kbd> for help on keyboard shortcuts anytime.
  183. - When you are ready for more, start [hacking `nnn`](https://github.com/jarun/nnn/wiki/hacking-nnn).
  184. - To set `nnn` as the default file manager, follow these [instructions](https://github.com/jarun/nnn/wiki/nnn-as-default-file-manager).
  185. #### USAGE
  186. #### Configuration
  187. `nnn` supports the following environment variables for configuration. All of them are optional (set if you need). There is no config file. Any associated files are stored under `${XDG_CONFIG_HOME:-$HOME/.config}/nnn/`.
  188. | Example `export` | Description |
  189. | --- | --- |
  190. | `NNN_BMS='d:~/Documents;D:~/Docs archive/'` | specify bookmarks (max 10) |
  191. | `NNN_USE_EDITOR=1` | open text files in `$VISUAL` (else `$EDITOR`, fallback vi) |
  192. | `NNN_CONTEXT_COLORS='1234'` | specify per context color [default: '4444' (all blue)] |
  193. | `NNN_SSHFS_OPTS='sshfs -o reconnect,idmap=user'` | specify SSHFS options |
  194. | `NNN_NOTE=/home/user/Dropbox/notes` | path to note file [default: none] |
  195. | `NNN_OPENER=mimeopen` | custom file opener |
  196. | `NNN_IDLE_TIMEOUT=300` | idle seconds before locking terminal [default: disabled] |
  197. | `NNN_COPIER='/absolute/path/to/copier'` | system clipboard copier script [default: none] |
  198. | `NNN_NO_AUTOSELECT=1` | do not auto-select matching dir in _nav-as-you-type_ mode |
  199. | `NNN_RESTRICT_NAV_OPEN=1` | open files on <kbd> ↵</kbd>, not <kbd>→</kbd> or <kbd>l</kbd> |
  200. | `NNN_TRASH=1` | trash files to the desktop Trash [default: delete] |
  201. | `NNN_OPS_PROG=1` | show copy, move progress on Linux |
  202. #### Cmdline options
  203. ```
  204. usage: nnn [-b key] [-d] [-e] [-H] [-i] [-n]
  205. [-p file] [-s] [-S] [-v] [-w] [-h] [PATH]
  206. The missing terminal file manager for X.
  207. positional args:
  208. PATH start dir [default: current dir]
  209. optional args:
  210. -b key open bookmark key
  211. -d detail mode
  212. -e use exiftool for media info
  213. -H show hidden files
  214. -i nav-as-you-type mode
  215. -n version sort
  216. -p file selection file (stdout if '-')
  217. -s string filters [default: regex]
  218. -S du mode
  219. -v show version
  220. -w wild load
  221. -h show help
  222. ```
  223. #### Keyboard and mouse
  224. Press <kbd>?</kbd> in `nnn` to see the list anytime.
  225. ```
  226. NAVIGATION
  227. ↑ k Up PgUp ^U Scroll up
  228. ↓ j Down PgDn ^D Scroll down
  229. ← h Parent dir ~ ` @ - HOME, /, start, last
  230. ↵ → l Open file/dir . Toggle show hidden
  231. Home g ^A First entry G ^E Last entry
  232. b Pin current dir ^B Go to pinned dir
  233. Tab ^I Next context d Toggle detail view
  234. , ^/ Leader key N LeadN Context N
  235. / Filter/Lead Ins ^T Toggle nav-as-you-type
  236. Esc Exit prompt ^L Redraw/clear prompt
  237. ^G Quit and cd q Quit context
  238. Q ^Q Quit ? Help, config
  239. FILES
  240. ^O Open with... n Create new/link
  241. D File details ^R Rename/duplicate
  242. ⎵ ^K / Y Select entry/all r Batch rename
  243. K ^Y Toggle selection y List selection
  244. P Copy selection X Delete selection
  245. V Move selection ^X Delete entry
  246. f Create archive m M Brief/full mediainfo
  247. ^F Extract archive F List archive
  248. e Edit in EDITOR p Open in PAGER
  249. ORDER TOGGLES
  250. ^J du E Extn S Apparent du
  251. ^W Random s Size t Time modified
  252. MISC
  253. ! ^] Spawn SHELL C Execute entry
  254. R ^V Pick plugin L Lock terminal
  255. c SSHFS mount u Unmount
  256. ^P Prompt ^N Note = Launcher
  257. ```
  258. Note: Help & settings, file details, media info and archive listing are shown in the PAGER. Use the PAGER-specific keys in these screens.
  259. | Mouse click | Function |
  260. |---| --- |
  261. | Left single on context number | Visit context |
  262. | Left single on top row after context numbers | Visit parent |
  263. | Left single/double on last 2 rows | Toggle nav-as-you-type |
  264. | Left single | Select context or entry |
  265. | Left double | Select context or open entry |
  266. ##### Leader key
  267. The Leader/Lead key provides a powerful multi-functional navigation mechanism. It is case-sensitive and understands contexts, bookmarks and location shortcuts.
  268. | Key | Function |
  269. |:---:| --- |
  270. | <kbd>1-4</kbd> | Go to/create selected context |
  271. | <kbd>></kbd>, <kbd>.</kbd> | Go to next active context |
  272. | <kbd><</kbd>, <kbd>,</kbd> | Go to previous active context |
  273. | key | Go to bookmarked location |
  274. | <kbd>~</kbd> <kbd>`</kbd> <kbd>@</kbd> <kbd>-</kbd> | Go to HOME, `/`, start, last visited dir |
  275. | <kbd>q</kbd> | Quit context |
  276. When the filter is on, <kbd>/</kbd> works as an additional Leader key.
  277. #### Contexts
  278. Contexts serve the purpose of exploring multiple directories simultaneously. 4 contexts are available. The status of the contexts are shown in the top left corner:
  279. - the current context is in reverse
  280. - other active contexts are underlined
  281. - rest are inactive
  282. To switch to a context press the Leader key followed by the context number (1-4).
  283. The first time a context is entered, it copies the state of the last visited context. Each context remembers its last visited directory.
  284. When a context is quit, the next active context is selected. If the last active context is quit, the program quits.
  285. ##### Context-specific color
  286. Each context can have its own directory color specified:
  287. export NNN_CONTEXT_COLORS='1234'
  288. colors: 0-black, 1-red, 2-green, 3-yellow, 4-blue (default), 5-magenta, 6-cyan, 7-white
  289. #### Dual pane
  290. Any number of `nnn` instances can be opened simultaneously using the lightweight terminal multiplexter [`dvtm`](http://www.brain-dump.org/projects/dvtm/). For example, to open 2 instances or a dual pane mode, have the following alias:
  291. alias n2="dvtm -m '^h' nnn nnn"
  292. Note that the `dvtm` MOD key is redefined to <kbd>^H</kbd> as the default one (<kbd>^G</kbd>) is also an `nnn` shortcut.
  293. #### Selection
  294. Use <kbd>^K</kbd> to select the file under the cursor.
  295. To select multiple files:
  296. - press <kbd>^Y</kbd> to enter selection mode. In this mode it's possible to
  297. - cherry-pick individual files one by one by pressing <kbd>^K</kbd> on each entry (works across directories and contexts); or,
  298. - navigate to another file in the same directory to select a range of files
  299. - press <kbd>^Y</kbd> again to save the selection and exit selection mode.
  300. _NOTE:_ If you are on BSD/macOS, please check the [BSD terminal issue](https://github.com/jarun/nnn#bsd-terminal-issue) with <kbd>^Y</kbd> for workaround.
  301. Selected files are visually indicated by a `+` before the entries.
  302. The selection can now be listed, copied, moved, removed, archived or linked.
  303. Navigate to a target directory then use <kbd>V</kbd> (move) or <kbd>P</kbd> (copy) to have the selected files moved or copied.
  304. Absolute paths of the selected files are copied to the temporary file `.selection` in the config directory. The path is shown in the help and configuration screen. If `$NNN_COPIER` is set the file paths are also copied to the system clipboard.
  305. #### Filters
  306. Filters support regexes (default) to instantly (search-as-you-type) list the matching entries in the current directory.
  307. Common use cases:
  308. - to list all matches starting with the filter expression, start the expression with a `^` (caret) symbol
  309. - type `\.mkv` to list all MKV files
  310. - use `.*` to match any character (_sort of_ fuzzy search)
  311. There is a program option to filter entries by substring match instead of regex.
  312. #### Navigate-as-you-type
  313. In this mode directories are opened in filter mode, allowing continuous navigation. Works best with the **arrow keys**.
  314. When there's a unique match and it's a directory, `nnn` auto selects the directory and enters it in this mode. To disable this behaviour,
  315. export NNN_NO_AUTOSELECT=1
  316. This mode takes navigation to the next level when short, unique keypress sequences are possible. For example, to reach `nnn` development directory (located at `~/GitHub/nnn`) from my `$HOME` (which is the default directory the terminal starts in), I use the sequence <kbd>g</kbd><kbd>n</kbd>.
  317. The **_wild load_** option can be extremely handy for users who use this mode constantly. The entries are unsorted when the directory loads. Applying filters sorts the entries (with directories on top). Directory color is disabled in this mode.
  318. #### File indicators
  319. The following indicators are used in the detail view:
  320. | Indicator | File Type |
  321. |:---:| --- |
  322. | `/` | Directory |
  323. | `*` | Executable |
  324. | <code>&#124;</code> | Fifo |
  325. | `=` | Socket |
  326. | `@` | Symbolic Link |
  327. | `@/` | Symbolic Link to directory |
  328. | `b` | Block Device |
  329. | `c` | Character Device |
  330. | `?` | Unknown |
  331. #### Hot-plugged drives
  332. External storage devices can be (un)mounted using the plugin [nmount](https://github.com/jarun/nnn/blob/master/plugins/nmount).
  333. For auto-mounting external storage drives use udev rules or udisks wrappers.
  334. #### SSHFS mounts
  335. To connect to and mount remote shares using SSHFS, `nnn` requires the ssh configuration file `~/.ssh/config` to have the host entries. sshfs reads this file.
  336. Example host entry for a Termux environment on Android device:
  337. ```
  338. Host phone
  339. HostName 192.168.0.102
  340. User u0_a117
  341. Port 8022
  342. ```
  343. The above host `phone` will be mounted at `${XDG_CONFIG_HOME:-$HOME/.config}/nnn/phone`. `nnn` creates the directory `phone` if it doesn't exist.
  344. If you need to pass options to the `sshfs` command, you can do so:
  345. export NNN_SSHFS_OPTS='sshfs -o reconnect,idmap=user,cache_timeout=3600'
  346. The options must be preceded by `sshfs` and comma-separated without any space between them.
  347. Notes:
  348. 1. `nnn` takes you to the mount point after successful mounts. To jump back to the last directory, press the usual <kbd>-</kbd>.
  349. 2. `nnn` doesn't delete the mount point on unmount to prevent accidental data loss. **Please ensure the mount point is not mounted if you are deleting it manually.**
  350. 3. More information on [SSHFS](https://wiki.archlinux.org/index.php/SSHFS).
  351. #### Help
  352. $ nnn -h
  353. $ man nnn
  354. To lookup keyboard shortcuts at runtime, press <kbd>?</kbd>.
  355. #### TROUBLESHOOTING
  356. ##### Tmux configuration
  357. `nnn` might not handle keypresses correctly when used with tmux (see issue #104 for more details). Set `TERM=xterm-256color` to address it.
  358. ##### BSD terminal issue
  359. TLDR: Use the keybind <kbd>K</kbd> to toggle selection if you are having issues with <kbd>^Y</kbd>.
  360. By default in OpenBSD & FreeBSD (and probably on macOS as well), `stty` maps <kbd>^Y</kbd> to `DSUSP`. This means that typing <kbd>^Y</kbd> will suspend `nnn` as if you typed <kbd>^Z</kbd> (you can bring `nnn` back to the foreground by issuing `fg`) instead of entering multi-selection mode. You can check this with `stty -a`. If it includes the text `dsusp = ^Y`, issuing `stty dsusp undef` will disable this `DSUSP` and let `nnn` receive the <kbd>^Y</kbd> instead.
  361. ##### 100% CPU usage
  362. There is a known issue where if you close the terminal directly with `nnn` **_waiting for a spawned process_**, a deadlock occurs and `nnn` uses 100% CPU. Please see issue [#225](https://github.com/jarun/nnn/issues/225) for more details. Make sure you quit the spawned process before closing the terminal. It's not a problem if there is no spawned process (`nnn` isn't blocked) as `nnn` checks if the parent process has exited.
  363. #### WHY FORK?
  364. `nnn` was initially forked from [noice](http://git.2f30.org/noice/) but is significantly [different](https://github.com/jarun/nnn/wiki/nnn-vs.-noice) today. I chose to fork because:
  365. - one can argue my approach deviates from the goal of the original project - keep the utility `suckless`. `noice` was rudimentary. In my opinion evolution is the taste of time.
  366. - I would like to have a bit of control on what features are added in the name of desktop integration. A feature-bloat is the last thing in my mind. Check out the [design considerations](https://github.com/jarun/nnn/wiki/design-considerations) for more details.
  367. Trivia: The name `nnn` is a recursive acronym for the initial words from _Noice is Not Noice, a noicer fork..._, suggested by a longtime friend.
  368. #### MENTIONS
  369. - [FOSSMint](https://www.fossmint.com/nnn-linux-terminal-file-browser/)
  370. - [Hacker News 1](https://news.ycombinator.com/item?id=18520898)
  371. - [Hacker News 2](https://news.ycombinator.com/item?id=19850656)
  372. - [It's FOSS](https://itsfoss.com/nnn-file-browser-linux/)
  373. - [LinuxLinks1](https://www.linuxlinks.com/nnn-fast-and-flexible-file-manager/)
  374. - [LinuxLinks2](https://www.linuxlinks.com/bestconsolefilemanagers/)
  375. - [Suckless Rocks](https://suckless.org/rocks/)
  376. - [Ubuntu Full Circle Magazine - Issue 135](https://fullcirclemagazine.org/issue-135/)
  377. #### DEVELOPERS
  378. 1. Copyright © 2014-2016 Lazaros Koromilas
  379. 2. Copyright © 2014-2016 Dimitris Papastamos
  380. 3. Copyright © 2016-2019 [Arun Prakash Jana](https://github.com/jarun)
  381. Contributions are welcome. Please visit the [ToDo list](https://github.com/jarun/nnn/issues/306).