| author | viric@mandarina |
| Mon, 28 Apr 2008 21:39:46 +0200 | |
| changeset 91 | af6b072bb025 |
| parent 81 | baf70c6a4116 |
| child 93 | 7d9b7a6da507 |
| permissions | -rw-r--r-- |
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> |
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<html lang="en"> |
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<head> |
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<meta http-equiv="Content-Type" content="text/html;charset=utf-8"> |
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<title>Terminal Mixer</title> |
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</head> |
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<body> |
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<h1>Terminal Mixer</h1> |
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<p>This program can start processes inside a pseudo-terminal, which can be |
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accessed through a Unix socket, TCP or even raw ethernet (using the ethernet |
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protocol 0xCACA). The programs can be linked to the current terminal, or |
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they can be unlinked like in <em>nohup</em>. But even in this latter case you |
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can connect to them using the mentioned protocols.</p> |
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<p><em>tm</em> can also start programs as if they communicate through pipes |
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instead of terminals, and this can be quite useful for remote-controlling |
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applications.</p> |
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<p>More than one client can connect to the served pseudo-terminal, either using |
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<em>tm</em> as a client or <em>telnet</em> for TCP. You can choose if they |
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are only allowed to read, or they can also contribute on input.</p> |
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<h2>Download</h2> |
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<p>Download the latest version (GPL 1.2+ licensed): |
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<a href="tm-0.4.1.tar.gz">tm-0.4.1.tar.gz</a> - v0.4.1 - <a |
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href="ChangeLog">ChangeLog</a></p> |
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<p>Look at the |
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<a href="/~viric/cgi-bin/hgwebdir.cgi/tm">version repository</a> if you are |
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interested in its development. If you can send any bug report, please |
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do that at the mail address at the bottom of the page. I'd like this |
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program to have as few bugs as possible, sure!</p> |
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<h2>What can you do with it? Examples of use</h2> |
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<ul> |
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<li><a href="#share">Share a terminal remotely</a> |
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<li><a href="#ether">Have an assured way of accessing a host, even if it has no IP address</a> |
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<li><a href="#mplayer">Remote control for mplayer</a> |
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<li><a href="#telnet">Transfer files through telnet</a> |
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<li><a href="#log">Access to a part of an execution log, on demand</a> |
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</ul> |
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<h3><a name="share"></a>Share a terminal remotely</h3> |
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Start <em>vim</em> cooperatively, using: |
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<pre> |
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tm -N 2 -p 3000 -t -x -w vim |
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</pre> |
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<p>Two [-N 2] users will be able to telnet to the port 3000 [-p 3000], and get |
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the same <em>vim</em> terminal [-t] interface as you. They will be able |
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to use vim [-w], not only look at it. |
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The size of their xterms [-x] will be set accordingly to the size of your |
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terminal. A nice feature of xterm!</p> |
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<blockquote>Attention! <em>vim</em> programs the vt100/xterm input/output codes at start. |
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If the clients don't receive those codes, they won't be able to use the Cursor |
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Keys effectively, for example. In that case, you may start a bash in tm, and |
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when the clients are connected, start vim.</blockquote> |
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<h3><a name="ether"></a>Have an assured way of accessing a host, even if it has no IP address</h3> |
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<p>Start a remote <em>bash</em> putting this in your start scripts:</p> |
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<pre> |
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ifconfig eth0 up |
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tm -e eth0 -n -w bash & |
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</pre> |
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<p>Then you can connect to it using another computer (as root), typing |
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the MAC address of the serving host:</p> |
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<pre> |
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tm -e eth0 -c 00:14:85:16:B2:32 |
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</pre> |
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<p>And you will have a non-terminal bash answering your requests. Don't |
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<em>exit</em> from it, because the <em>tm</em> server will end.</p> |
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<h3><a name="mplayer"></a>Remote control for mplayer</h3> |
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<p>Start a <a href="http://www.mplayerhq.hu/">mplayer</a> allowing remote |
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commands with:</p> |
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<pre> |
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tm -w mplayer -slave voice_recording.mp3 |
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</pre> |
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<p>Then you can send orders as simple as these:</p> |
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<pre> |
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echo pause | tm |
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</pre> |
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<p>Make your xbindkeys to map to these commands, and you can have a good |
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control of your music playing. |
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In fact I mapped <em>pause</em> to F1, and <em>go backwards 5 seconds</em> |
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to F2, and I use this for transcription of voice recordings.</p> |
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<h3><a name="telnet"></a>Transfer files through telnet</h3> |
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<p>If you run a telnet client inside <em>tm</em>, you can use a <em>tm</em> client |
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to send uuencoded streams. You can look at a |
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<a href="http://www.youterm.com/?view=Player&video=tools/tm-telnetfile">Youterm |
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podcast</a> for that.</p> |
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<h3><a name="log"></a>Access to a part of an execution log, on demand</h3> |
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<p>Imagine you want to run the program XXX, which does a lot of debug |
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output in stdout. Even without running it through tm, |
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you will be able to access the logs <strong>only</strong> when |
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you connect to it.</p> |
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<pre> |
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XXX | tm cat > /tmp/total_log.txt |
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</pre> |
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<p>You can redirect to /dev/null or use <em>tm</em>'s -n [nohup] if you |
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don't want |
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to store all the debug info. In any case, you can run a simple |
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<kbd>tm</kbd> command with no parameters, and you will be seeing |
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the debug info since the connection. Close <em>tm</em> (Control-C) and |
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you will not see the info until a new connection is made.</p> |
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<h2>Manual</h2> |
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<p>Here you have a copy of the help for v0.4:</p> |
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<pre> |
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tm v0.4 - terminal mixer, Copyright (C) 2007 Lluis Batlle i Rossell |
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usage: ./tm [opts] [appcommand] [param1] [param2] ... |
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If you give _appcommand_, it starts the application and |
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serves it through a Unix socket on $TM_SOCKET or /tmp/tm-socket.UID, |
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unless '-p' is used. |
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Without _appcomand_, starts a the Unix socket client. |
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options: |
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-h Show help. |
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-P Run the child as connected to a pipe (default). |
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-t Run the child as connected to a terminal (raw mode in client). |
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-n Unlink the program from the terminal (as 'nohup'). |
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-N MAX Serve at most MAX sockets for each transport (1 default). |
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-w The remote clients can write to the application. |
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-C The remote clients end will close app's stdin. |
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-p NUM Listen to tcp port NUM for 'telnet', and not listen to any |
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Unix socket. |
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-E Echo remote input to the server terminal. |
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-e dev Also serve/connect using raw ethernet, device 'dev'. |
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-c adr Connect to address (MAC if eth). |
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-x Send xterm's resize control string to clients. |
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</pre> |
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<h2>Thanks</h2> |
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<ul> |
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<li>To Pancake, who gave a spark for the general idea of this program, |
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based on an initial <a href="../stdinmix">stdinmix</a> |
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<li>To Raúl Salinas, for its support. |
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<li>To the useful, although sometimes uncomfortable, UNIX interface. |
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<li>To GNU, an ugly but working and helpful ol' UNIX implementation. |
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<li>I took some bits from |
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<a href="http://freshmeat.net/projects/cec/">Coraid Ethernet Console</a> |
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(BSD license). <a |
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href="http://plan9.bell-labs.com/plan9/">Plan 9</a> version at |
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<kbd>/n/sources/contrib/quanstro/src/cec/</kbd> - Thanks to Erik Quanstrom. |
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</ul> |
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<address>Author: |
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<a href="http://vicerveza.homeunix.net/~viric/index.html.en">Lluís |
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Batlle i Rossell</a>, |
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viric_at_vicerveza_dot_homeunix_dot_net</address> |
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</body> |