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# ttyd - Share your terminal over the web  
ttyd is a simple command-line tool for sharing terminal over the web.
# Features
- Built on top of [Libwebsockets](https://libwebsockets.org) with [libuv](https://libuv.org) for speed
- Fully-featured terminal based on [Xterm.js](https://xtermjs.org) with [CJK](https://en.wikipedia.org/wiki/CJK_characters) and IME support
- Graphical [ZMODEM](https://en.wikipedia.org/wiki/ZMODEM) integration with [lrzsz](https://ohse.de/uwe/software/lrzsz.html) support
- SSL support based on [OpenSSL](https://www.openssl.org)
- Run any custom command with options
- Basic authentication support and many other custom options
- Cross platform: macOS, Linux, FreeBSD/OpenBSD, [OpenWrt](https://openwrt.org), Windows
> ❤ Special thanks to [JetBrains](https://www.jetbrains.com/?from=ttyd) for sponsoring the opensource license to this project.
# Installation
## Install on macOS
Install with [homebrew](http://brew.sh):
```bash
brew install ttyd
```
## Install on Linux
- Binary version (recommended): download from the [releases](https://github.com/tsl0922/ttyd/releases) page.
- Build from source (debian/ubuntu):
```bash
sudo apt-get install build-essential cmake git libjson-c-dev libwebsockets-dev
git clone https://github.com/tsl0922/ttyd.git
cd ttyd && mkdir build && cd build
cmake ..
make && sudo make install
```
You may also need to compile/install [libwebsockets](https://libwebsockets.org) from source if the `libwebsockets-dev` package is outdated.
- Install on Gentoo: clone the [repo](https://bitbucket.org/mgpagano/ttyd/src/master) and follow the directions [here](https://wiki.gentoo.org/wiki/Custom_repository#Creating_a_local_repository).
## Install on Windows
[Compile on Windows](https://github.com/tsl0922/ttyd/wiki/Compile-on-Windows).
## Install on OpenWrt
```bash
opkg install ttyd
```
# Usage
## Command-line Options
```
ttyd is a tool for sharing terminal over the web
USAGE:
ttyd [options] <command> [<arguments...>]
VERSION:
1.6.3
OPTIONS:
-p, --port Port to listen (default: 7681, use `0` for random port)
-i, --interface Network interface to bind (eg: eth0), or UNIX domain socket path (eg: /var/run/ttyd.sock)
-c, --credential Credential for Basic Authentication (format: username:password)
-u, --uid User id to run with
-g, --gid Group id to run with
-s, --signal Signal to send to the command when exit it (default: 1, SIGHUP)
-a, --url-arg Allow client to send command line arguments in URL (eg: http://localhost:7681?arg=foo&arg=bar)
-R, --readonly Do not allow clients to write to the TTY
-t, --client-option Send option to client (format: key=value), repeat to add more options
-T, --terminal-type Terminal type to report, default: xterm-256color
-O, --check-origin Do not allow websocket connection from different origin
-m, --max-clients Maximum clients to support (default: 0, no limit)
-o, --once Accept only one client and exit on disconnection
-B, --browser Open terminal with the default system browser
-I, --index Custom index.html path
-b, --base-path Expected base path for requests coming from a reverse proxy (eg: /mounted/here)
-P, --ping-interval Websocket ping interval(sec) (default: 300)
-6, --ipv6 Enable IPv6 support
-S, --ssl Enable SSL
-C, --ssl-cert SSL certificate file path
-K, --ssl-key SSL key file path
-A, --ssl-ca SSL CA file path for client certificate verification
-d, --debug Set log level (default: 7)
-v, --version Print the version and exit
-h, --help Print this text and exit
Visit https://github.com/tsl0922/ttyd to get more information and report bugs.
```
Read the example usage on the [wiki](https://github.com/tsl0922/ttyd/wiki/Example-Usage).
## Browser Support
Modern browsers, See [Browser Support](https://github.com/xtermjs/xterm.js#browser-support).
## Alternatives
* [Wetty](https://github.com/krishnasrinivas/wetty): [Node](https://nodejs.org) based web terminal (SSH/login)
* [GoTTY](https://github.com/yudai/gotty): [Go](https://golang.org) based web terminal
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