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Midnight Commander Questions and Answers The newest version of this document is available at http://mc.blackdown.org/mc/answers0.html * 1 Getting started + 1.1 What is Midnight Commander? + 1.2 [UPDATED] Does it run on my machine? + 1.3 Does it work with my terminal? + 1.4 What else do I need to run MC? + 1.5 Is Midnight Commander PD? Copyrighted? + 1.6 Where can I get Midnight Commander? + 1.7 I don't have FTP access. Where can I get MC? * 2 Keyboard + 2.1 What does documentation mean with the C-?, M-? and F? keys? + 2.2 [UPDATED] Why don't function keys (or some other key) work? + 2.3 How do I use function keys F11 to F20? + 2.4 Why does the ESC key behave funny? + 2.5 How can I add the plus sign (+) on the command line? * 3 Mouse + 3.1 How do I enable mouse support? + 3.2 How do I cut and paste text with mouse? * 4 Display + 4.1 Why do I keep getting "Terminal not powerful enough for SLang"? + 4.2 [UPDATED] Why don't line drawing characters work? + 4.3 Can one use latin-1 characters without losing the lines? + 4.4 I have problems with entering/viewing national characters! + 4.5 How can I get colors? + 4.6 My color_xterm goes completely (or partially) black! + 4.7 Where can I get color_xterm? + 4.8 I got colors working with MC but the other programs don't work at all anymore! + 4.9 Why are there both terminfo and termcap? Wouldn't one database be enough? * 5 Graphical user interface + 5.1 Xview and Tk editions? * 6 Command line problems + 6.1 How do I stay in the last directory when I exit Midnight Commander? + 6.2 How can I access command line history? + 6.3 How can I complete commands, file names, variable names and so on? + 6.4 [NEW] I am using ksh. Can I use functions defined in the .kshrc within MC? + 6.5 [NEW] Is there any way to include additional options or hot keys to MC? * 7 Virtual file systems + 7.1 How can I see the contents of a tar archive? + 7.2 How do I get out of a tar archive? + 7.3 How do I do anonymous ftp with MC? + 7.4 How do I do non-anonymous ftp with MC? + 7.5 How do I close an ftp connection? + 7.6 Why aren't the contents of ftp panel updated? + 7.7 [NEW] What kind of proxy server works with Midnight Commander? * 8 Other common problems + 8.1 [UPDATED] How do I get the internal editor to work? + 8.2 Why doesn't "mcedit newfile" work? + 8.3 [UPDATED] Is there any way to 'bookmark' favourite ftp-fs links? + 8.4 When copying the directories lose their original date, uid and gid! + 8.5 [UPDATED] Why I keep getting: "There is no disk in the drive. Please insert a disk into drive D:"? + 8.6 [NEW] When I start Midnight Commander, nothing happens! + 8.7 [NEW] When I try to view a file MC hangs! * 9 Development + 9.1 Who has written Midnight Commander? + 9.2 Do I dare to use a development version? + 9.3 How can I report a bug/request for a feature? + 9.4 How can I join the development? * 10 More information + 10.1 [UPDATED] This document didn't answer my question. Where else can I look for an answer? + 10.2 What mailing lists are there for Midnight Commander? + 10.3 Where should I look on the World Wide Web for MC stuff? + 10.4 Are the mailing lists archived anywhere? * 11 Administrivia + 11.1 Authorship + 11.2 [UPDATED] File formats + 11.3 Feedback is invited + 11.4 Disclaimer and copyright 1 Getting started 1.1 What is Midnight Commander? The Midnight Commander is a user-friendly yet powerful file manager and visual shell, useful to novice and guru alike. It provides a clear, user-friendly, and somewhat protected interface to a Unix system while making many frequent file operations more efficient and preserving the full power of the command prompt. You will wonder how you could ever live without it. For more thorough description take a look at the announcement of Midnight Commander 4.0. 1.2 [UPDATED] Does it run on my machine? Yes, Midnight Commander can run on almost any machine, including Unix clones, Windows 95/NT and OS/2. Midnight Commander does not run on Macintosh. Midnight Commander uses GNU autoconfigure which can automatically configure Midnight Commander for use on almost any (if not every) Unix clone. Following configurations have been tested: * i386-*-linux1.x, 2.x * alpha-linux-linux2 * sparc-linux-linux2.x * sparc64-linux-linux2.1 * mips-sgi-irix5.x, 6.x * mips-dec-ultrix4.3 * rs6000-ibm-aix3.2.5 * sparc-sun-sunos4.1 * sparc-sun-solaris2.3, 2.4, 2.5 * sparc-sun-netbsd1.0 * hppa-hp-hpux9 * hppa-hp-hpux7 * m68k-apple-aux * unixware * mc88110-aviion-dgux5.4R2.01 * i386-*-sco3.2v4.2 * i386-*-sco3.2v5 * i386-*-windows-nt-3.51, 4.0 * i386-*-windows95 * i386-*-os2 See http://mc.blackdown.org/mc/download.html. There is also a preliminary Ms-Dos port at http://mc.blackdown.org/cgi-mc/download/DOS/.html (but no Ms-Dos binary). Windows 95/NT port is compiled with Microsoft Visual C++ but it might be possible to use cygwin32 or djgpp instead. 1.3 Does it work with my terminal? Yes, it does. Because Midnight Commander is a full screen program it doesn't run on dummy terminals but anything more advanced will do (like vt100). If your terminal works with vi, emacs, elm or pine it will work with Midnight Commander. The XView and Tk editions currently under development will require an X terminal. 1.4 What else do I need to run MC? You need an Unix compatible operating system or Windows 95/NT or OS/2. If you want to use mouse on the Linux console you need General Purpose Mouse server from iride.unipv.it: /pub/gpm/. You need nothing extra to use mouse on xterm. To compile the XView edition (currently under development) you need XView library. Xpm library and X11 non-rectangular shape extensions are recommended. To compile the Tk edition (currently under development) you need Tk-4.0 libraries. Compilation of the Tk version won't be easy. Contact Miguel for details. If you do not want to use the slang library you could try using ncurses (we recommend only version 4.1 and above). You can get it along with other curses libraries, too, but results may not be pretty or even usable. 1.5 Is Midnight Commander PD? Copyrighted? Midnight Commander is under GNU Public License which basically means that you may freely copy, change and distribute it, but that you may not impose any restrictions on further distribution, and that you must make the source code available. This is not the same as Public Domain. For details, the GNU license is included in the Midnight Commander source distribution (the COPYING file). Midnight Commander is nowadays officially a part of GNU project. All the authors of the Midnight Commander have given all their rights on the program to the Free Software Foundation. 1.6 Where can I get Midnight Commander? See http://mc.blackdown.org/mc/download.html. There are about seventy download sites. Note that the newest files might not be present on all the download sites yet. In short: the main site is ftp://ftp.nuclecu.unam.mx/linux/local/ and the sunsite.unc.edu mirrors have MC in the /pub/Linux/utils/file/managers/mc directory. 1.7 I don't have FTP access. Where can I get MC? Most Linux CD-ROMs include Midnight Commander. For example, Slackware, Yggdrasil, S.U.S.E., Jurix, RedHat, Caldera and Debian. 2 Keyboard 2.1 What does documentation mean with the C-?, M-? and F? keys? Midnight Commander documentation uses emacs style names for keyboard keys. C stands for the Ctrl key. For example, C-f means that you should hold down the Ctrl key and press the f key. M stands for the Meta key. Your terminal might call it Alt or Compose instead of Meta. For example, M-f means that you should hold down the Meta/Alt/Compose key and press the f key. If your terminal doesn't have Meta, Alt or Compose or they don't work you can use Esc. For M-f press the Esc key and then press the f key. F? stands for a function key. If your terminal doesn't have function keys or they don't work you can use Esc. For example, for F3 press the Esc key and then press the 3 key. 2.2 [UPDATED] Why don't function keys (or some other key) work? Your terminfo or termcap database has missing or incorrect definations for function keys. Type "mc -V" to see what terminal database is being used. If the result is "using the S-Lang library with terminfo database" you should install one of the enhanced terminfo databases included in the Midnight Commander source distribution. For example, if you are using xterm type "tic xterm.ti". If the result is "using the S-Lang library with termcap database" you should fix your /etc/termcap database. Best terminfo database is bundled with ncurses 4.2 You can select whether Midnight Commander will use terminfo or termcap database by giving --with-terminfo or --with-termcap option to the configure. Default is terminfo if found, otherwise termcap. If you don't have permissions to edit terminal databases you can use Learn keys feature of Midnight Commander instead. Press Esc 9 o k and follow instructions. If all else fails you can emulate function keys by first pressing the ESC key and then one of the number keys. For example, if you want to produce F9, press ESC, then 9. If you don't have a ESC key on your keyboard you can try alt-9 or meta-9. 2.3 How do I use function keys F11 to F20? These can mapped to function keys F1 to F10 with Shift held. eg. function key F13 can be activated by pressing Shift-F3. You can define the keys this way in the Options menu. The convention for PC keyboards is that F11-20 always means Shift with F1-10 Note! Windows 95/NT and OS/2 ports use F11 and F12 keys to change the current disk drive. In this case F11 and F12 mean the real F11 and F12 keys, not shift-F1 and shift-F2. 2.4 Why does the ESC key behave funny? Midnight Commander uses the ESC key as a prefix for simulating the Meta and Alt keys (for terminals which don't have Meta or Alt, see the three previous questions). For example, pressing ESC-a is the same as pressing Meta-a. In addition most terminals use ESC for internal representation of arrow keys, function keys and other enhanced keys. If you want to use ESC to cancel things you have to press it twice i. e. ESC-ESC. If you find this cumbersome you can generally use F10 to cancel. Alternatively turn on the old_esc_mode setting in the ~/.mc.ini file. The old_esc_mode setting makes ESC work as a prefix only if another key is pressed within 0.5 seconds. After 0.5 seconds the ESC key cancels. There is no way to make ESC cancel immediately (if we want to be able to use arrows keys and function keys). X terminals allow more control over keyboard, so these ESC limitations might not concern the forthcoming XView and Tk editions of the Midnight Commander. 2.5 How can I add the plus sign (+) on the command line? Press C-q first, then press the + sign. The plus key is the hotkey for the select files command. If you want to add a literal plus on to the command line you must quote it by pressing C-q first. Another common key which needs the C-q prefix is backslash "\". 3 Mouse 3.1 How do I enable mouse support? Invoke mc like this (without quotes): "mc -x". If this doesn't work upgrade to a terminal which compatible with the Xterm mouse sequences. Alternatively, on Linux console you can use GPM. 3.2 How do I cut and paste text with mouse? Hold down shift key while using mouse to cut'n'paste. 4 Display 4.1 Why do I keep getting "Terminal not powerful enough for SLang"? This means that your terminfo databases do not contain the correct definitions for your terminal. You could try using a different terminal setting. If you use csh or tcsh: setenv TERM vt100 or if you use sh, bash, ksh or zsh: export TERM=vt100 If this doesn't help you can recompile MC to use termcap instead of terminfo: ./configure --with-termcap make 4.2 [UPDATED] Why don't line drawing characters work? Since version 4.0.13 there's the commandline option -a to force use of +, |, - for line drawing (only available when compiled with SLang). Use this -a option if any of the suggestions below doesn't help. In general, there are three subcases: * Lines are shown as ASCII characters like this +---------+ | | +---------+ This also happens when you use the -a option. Other than that possible reason is 1, 2 or 3 (see below). * Lines are shown as lower case characters like this lqqqqqqqqqk x x mqqqqqqqqqj Possible reason is 2 or 3 (see below). * Lines are shown as blanks or missing characters. Possible reason is 3 or 4 (see below). The reason for the problem is one of following: 1. Your curses library might not support line drawing characters. Slang, Ncurses and System V curses do support them, BSD curses doesn't. MC uses Slang by default so this is not usually a problem. 2. Your terminal might not support line drawing characters. Vt100 compatible terminals, rxvt, xterm and color_xterm do support them. 3. Your terminfo or termcap database might have missing or incorrect definations for line drawing characters. Set the acsc variable in the terminfo database like this: acsc=a\376k\277l\332m\300j\331n\305w\302v\301u\264t\303q\304x\263h \2600\333 Don't forget issue 'tic' command. This supposes you are using pc character set. The octal values might be different for other character sets. If you are using termcap instead of terminfo, you should modify above solution appropriately. 4. Your terminal font might not support line drawing characters. Try changing the font. Here is Miguel's answer to Torben on this subject. Torben: When I load consolefonts/iso01.f16, I get perfectly right national characters, but the line drawing characters in mc get wrong. Is it a mc problem, or is it a problem with the font? (I guess it is). Is there a trick? Miguel: First of all, we should determine whether the font has line drawing characters or not. If it has line drawing characters, then a new terminfo entry should be written for this specific case. Let's call this linux-iso01. The acsc variable should be modified to reflect which characters are used to do the line drawing. If it does not have line drawing characters, then we should get rid of the switch to acsc sequences and make the acsc sequence be just a mapping to the ugly +, -, |, - characters. You can get your terminfo definition by running the infocmp program, making the proper changes and running the tic program to compile your new terminfo database. 4.3 Can one use latin-1 characters without losing the lines? Yes, you need a correct font and a correct termcap/terminfo database. For font, if you use xterm try "xterm -fn fixed". For termcap/terminfo database, change the acsc capability in the database. 4.4 I have problems with entering/viewing national characters! Upgrade to version 4.0.12 or newer. From the Options - Display Bits dialog select Full 8 bits or ISO 8859-1. In addition, select 8 bit input from the same dialog. 4.5 How can I get colors? Invoke mc like this (without quotes): "mc -c". If you get colors, be happy. If your terminal stays black and white, your terminal doesn't support color. You might want to upgrade to a terminal which compatible with the ANSI color sequences. If your terminal goes compelety black, see the next question. More detailed answer: First, check that your terminal supports color. Color_xterm, rxvt and Linux console do support, most other terminals don't. You can test color support with following simple C program: #include <stdio.h> int main (void){ printf ("\033[32m Hello world! \033[m\n"); return 0; } Compile and run it. If you see "Hello world!" text in green your terminal supports color, otherwise not (however, for color_xterm see also the next question). Second, check that you are using Ncurses or the Slang library (type "mc -V" to find out), in addition some System V curses implementations do support color, most don't. With Slang library you can force color support by setting the environment variable COLORTERM to any value. Third, if you use ncurses library, check that your terminfo database supports color. If not you should install one of the enhanced terminfo databases included in the Midnight Commander source distribution. Fourth, you might want to set the TERM environment variable so that you use the correct terminfo database or termcap entry. If you use color_xterm (or rxvt) the correct value might be xterm-color, xtermc or simply xterm. If you use Linux console the correct value for TERM is linux or console. 4.6 My color_xterm goes completely (or partially) black! Some color_xterm terminals define all colors as black instead of the standard ANSI colors. This makes them go completely black when you try to use Midnight Commander with colors. You will have to override the defaults. Create a file "color.defaults" which has the following contents: color_xterm*color0: Black color_xterm*color1: Red color_xterm*color2: Green color_xterm*color3: Yellow color_xterm*color4: Blue color_xterm*color5: Magenta color_xterm*color6: Cyan color_xterm*color7: White color_xterm*background: White color_xterm*foreground: Black (replace color_xterm with the name of your color_xterm, color_xterm mentions its name in its title bar) Now type: xrdb -merge color.defaults Alternatively you can add the suggested contents of the color.defaults file to your .Xdefaults or .Xresources file (or what ever the name of your X configuration file is). Or you can replace your non-ANSI color_xterm with an ANSI color_xterm. 4.7 Where can I get color_xterm? Try ftp.x.org: /contrib/utilities/colour_xterm.tar.gz. Alternatively, rxvt is a better choice, see http://mc.blackdown.org/cgi-mc/download/rxvt/.html 4.8 I got colors working with MC but the other programs don't work at all anymore! Midnight Commander uses terminfo database (if available) but many other programs use termcap database. If you set the TERM environment variable to a value which has no corresponding entry in termcap database those programs stop working. You should add the new value of TERM to the termcap database. Example: If you have set TERM to xterm-color locate from /etc/termcap the line which starts: xterm|vs100|xterm terminal emulator Change it to start: xterm|xterm-color|vs100|xterm terminal emulator 4.9 Why are there both terminfo and termcap? Wouldn't one database be enough? You might want to read the Unix-haters handbook at http://www.digital.de/people/jmh/Unix_Haters/unix-haters.html. It lists many more reasons why Unix sucks. You can configure which terminal database you want to use with the "--with-termcap" and "--with-terminfo" flags of configure. If you don't specify them, the configure script will try to use terminfo if available otherwise it will use termcap. 5 Graphical user interface 5.1 Xview and Tk editions? Get the newest development version, give the "--with-xview" or "--with-tk" option to the configure and otherwise compile as usual. See Download. Xview and Tk editions are work in progress, they are not as robust as the text mode edition. 6 Command line problems 6.1 How do I stay in the last directory when I exit Midnight Commander? See the description of the -P option in the Options section of the manual. 6.2 How can I access command line history? You can browse previous commands with M-p and M-n. Alternatively, you can summon the command history listbox by pressing F9 c h. 6.3 How can I complete commands, file names, variable names and so on? Just press M-Tab. Press M-Tab again to get a listbox if there are multiple possible completions. 6.4 [NEW] I am using ksh. Can I use functions defined in the .kshrc within MC? Sorry, MC only supports bash, tcsh and zsh functions. Ksh functions are not supported because ksh lacks the necessary hooks needed for subshell integration. Switch to bash or zsh. They are both quite compatible with ksh. Your ksh functions should work as such or after minimal changes. 6.5 [NEW] Is there any way to include additional options or hot keys to MC? Yes, F2 invokes an user menu which fully configurable. You can add any shell commands to the user menu. See http://mc.blackdown.org/mc/manual-d.html#8 for more info. Another way to add functionality is the external panelize feature. See http://mc.blackdown.org/mc/manual-d.html#4 for more info. And finally, you can code any feature you want yourself. MC source code is free which means you can change it anyway you want. There are some limitations to make sure MC stays free. See GNU General Public License for details. 7 Virtual file systems Note! Virtual file systems are supported by Unix ports only. The Windows 95/NT and OS/2 ports do NOT support virtual file systems. This means you haven't got ftp, zip or tar support on Windows 95/NT and OS/2. 7.1 How can I see the contents of a tar archive? If you use keyboard just move the selection bar on the tar file and press enter. If you use mouse just doubleclick on the tar file. If these procedures don't work, your .mc.ext file is faulty. Replace it with one from the MC source distribution. You can also enter a tar archive by typing "cd tar:filename.tar.gz" where filename.tar.gz is the name of the archive. The recognized suffixes for tar archives are .tar, .tar.gz and .tgz. If your tar archive uses different suffix you have to rename it. 7.2 How do I get out of a tar archive? Just press enter on the toplevel ".." file or chdir to a non-tar directory. Just typing "cd" with no parameters is enough (it will take you to your home directory). 7.3 How do I do anonymous ftp with MC? Just type "cd ftp://hostname" where hostname is the name of the host you want to connect. Alternatively, select FTP link from the Left or Right menu and type the name of the host you want to connect. 7.4 How do I do non-anonymous ftp with MC? Non-anonymous ftp works just like the anonymous ftp but you give the login name with the host name. For example, type "cd ftp://username@hostname". 7.5 How do I close an ftp connection? Just chdir to a non-ftp directory. Just typing "cd" with no parameters is enough (it will take you to your home directory). Internally Midnight Commander closes ftp connection only after a timeout. This isn't visible to the end user. 7.6 Why aren't the contents of ftp panel updated? Update is skipped because there would be a serious performance penalty. Constantly updating directory panels through a ftp connection would take too much time. You can use C-r to force an update. 7.7 [NEW] What kind of proxy server works with Midnight Commander? Midnight Commander only supports ftp-like ftp proxies. Common WWW proxies (like Squid) are not supported yet because they make ftp connections look like http connections. 8 Other common problems 8.1 [UPDATED] How do I get the internal editor to work? The F4 key defaults to an external editor because thats what most people are used to. To use the internal editor, select Configuration from the Options menu and check the 'use internal edit' option. Alternatively add the line use_internal_edit=1 under the [Midnight-Commander] section in your .mc.ini file (which is in your home directory). To make the editor work all the time, go to the default/* section in the file lib/mc/mc.ext file and remove the line Edit=%var{EDITOR:vi} %f The internal editor will now be invoked for anything not specified elsewhere in the mc.ext file. Make sure that you edit the correct mc.ext file. The Midnight Commander first checks the existance of $HOME/.mc.ext. If this file is missing MC will use $prefix/lib/mc/mc.ext instead ($prefix can be changed with configure before compilation and it defaults to /usr/local). When you run `F9/Command/Extension file edit' for the very first time Midnight Commander copies the system-wide mc.ext from $prefix/lib/mc into your home directory because you need write access in order to change it. And please don't forget that "make install" overwrites $prefix/lib/mc/mc.ext. 8.2 Why doesn't "mcedit newfile" work? This is a known bug. If the newfile doesn't exist, mcedit fails. Start mcedit with no parameters, this will create a blank file. Then save the file with whatever name you like. 8.3 [UPDATED] Is there any way to 'bookmark' favourite ftp-fs links? Use the directory hotlist. Just press control-backslash. If your national keyboard layout doesn't have backslash key, just press the control key with the key which is the backslash key in the English keyboard layout. 8.4 When copying the directories lose their original date, uid and gid! This is a known bug. At moment only files preserve their original settings when copying, not directories. Uid and gid is fixed since 4.0.1. "Preserve UIDs/GIDs" in the copy dialog needs to be checked and you must be root. Date problem is supposed to be fixed with 4.0.13. 8.5 [UPDATED] Why I keep getting: "There is no disk in the drive. Please insert a disk into drive D:"? This is a known bug of the Windows 95/NT and OS/2 ports. MC looks its configuration files from the D:\MC directory and if the D: drive is a removable drive (like a CD ROM drive) and there is no disk in drive you get this message everytime you try to do anything. Since version 4.0.6 you can specify the actual location of the Midnight Commander configuration files with the MCHOME environment variable. 8.6 [NEW] When I start Midnight Commander, nothing happens! First, invoke MC without subshell support: "mc -u". If this helps check the shell you are using. Subshell support works best with bash although tcsh and zsh are also supported. You might want to upgrade your shell to a newer version. If you use something else than bash, tcsh or zsh, subshell support is disabled automatically. If disabling subshell doesn't help, try to reconfigure MC with "--with-our-slang" and "--with-termcap" options and recompile. If this helps, there is something wrong with your terminfo database or shared slang library. For better terminfo databases see chapter 4. For a better slang library, upgrade to a newer version or keep using the "--with-our-slang" option. 8.7 [NEW] When I try to view a file MC hangs! This is known bug. A quick fix is "chmod 666 /dev/tty". For a more complete fix, see http://mc.blackdown.org/mc/maillist/97-10/98.html. This bug will probably be fixed in 4.1.6. 9 Development 9.1 Who has written Midnight Commander? Midnight Commander was started by Miguel de Icaza and he is the maintainer of the package. Other authors have joined the project later: * Mauricio Plaza (early releases, retired) * Janne Kukonlehto (joined Sep 27 1994, retired Mar 8 1995, nowadays Janne is the webmaster of the Midnight Commander web site) * Radek Doulik (joined Oct 30 1994) * Fred Leeflang (joined Nov 2 1994) * Dugan Porter (joined Dec 1 1994) * Jakub Jelinek (joined Feb 8 1995) * Ching Hui (joined Jun 27 1995) * Andrej Borsenkow (joined Jul 1996) * Paul Sheer (joined Nov 1 1996) * Norbert Warmuth * Alex I. Tkachenko Alessandro Rubini has been specially helpful with debugging and enhancing of the mouse support. John Davis has made his S-Lang library available to us and answered many questions about it. The photographs of the authors are available as: http://mc.blackdown.org/mc/about.html Many people have contributed bug reports, feature suggestions and small code bits (alphabetical order): * Thomasz Cholewo * Juan Jose Ciarlante * Alexander Dong (OS/2 port, NT port updates) * Erwin van Eijk * Torben Fjerdingstad * Massimo Fontanelli * Juan Grigera (NT port) * Gerd Knorr * Sergey Ya. Korshunoff * Jean-Daniel Luiset * Wim Osterholt * Antonio Palama (old DOS port) * Thomas Pundt * Marcelo Roccasalva * Ilya Rybkin * Vadim Sinolits * Jon Stevens * Adam Tla/lka 9.2 Do I dare to use a development version? I am afraid you have to answer to this question yourself. Development versions seldom cause data loss but they have usually got many bugs. It's up to you to judge whether new features outweight the bugs. 9.3 How can I report a bug/request for a feature? You might first want to get the newest development version to see if the bug is fixed or the feature is added already. Send your report/request to mc-devel@roxanne.nuclecu.unam.mx or mc@roxanne.nuclecu.unam.mx. These mailing lists are the most certain way to contact the developers. Remember to mention if you are not on the mailing list to make sure that you will receive a copy of replies. Give as much details as possible. A too long message is a lot better than a too short message. For segmentation faults a stack backtrace is appreciated. You can produce stack backtrace as follows: * If segmentation fault produced a core file: 1. Load the core file by typing "gdb mc core" or "dbx mc core". 2. Type "where". 3. Cut and paste the results to your message. * If segmentation fault didn't produce a core file: 1. Load mc by typing "gdb mc" or "dbx mc". 2. Start mc by typing "run". 3. Try to reproduce the segmentation fault by doing whatever you did last time when the segmentation fault occurred. 4. Type "where". 5. Cut and paste the results to your message. 6. For the future you might want to check out what is the command in your shell to allow producing of the core files. Usually it is "limit coredumpsize unlimited" or "ulimit coredumpsize" or "ulimit -c unlimited". 9.4 How can I join the development? To join the development just code the feature you want to add and send your patch for inclusion. Email address is mc-devel@nuclecu.unam.mx. Before you start coding check the latest development version. It might be that your feature has already been implemented. Note that the authors of the Midnight Commander have given all their rights on the program to the Free Software Foundation. You will have to do the same if you contribute non-trivial patches. Otherwise we have to reject your patches in order to avoid copyright problems. 10 More information 10.1 [UPDATED] This document didn't answer my question. Where else can I look for an answer? Read messages from the Discussion (mailing list archive), search the web site or read the Manual. Upgrade to a newer version of Midnight Commander. Many problems are fixed in the new versions. If you still can't find an answer, post your question to the Midnight Commander mailing list. Its address is mc@nuclecu.unam.mx. 10.2 What mailing lists are there for Midnight Commander? Following mailing lists discuss about Midnight Commander: mc General discussion of the Midnight Commander mc-digest The mc list, in digest format mc-announce Major announcements about the Commander mc-patch The latest Commander patches mc-devel Technical development discussion mc-chat Non-MC related chatting by the developers (contact Miguel to subscribe) To subscribe, send e-mail to majordomo@roxanne.nuclecu.unam.mx with the following line in the body of the message: subscribe <list-name> [optional-address] Replace <list-name> with the name of the list you want to subscribe and [optional-address] with your email address. 10.3 Where should I look on the World Wide Web for MC stuff? There is a WWW page for Midnight Commander. The URL is: http://mc.blackdown.org/mc/ The WWW page features MC screen shots, photographs of the authors, mailing list archive and a few other things. 10.4 Are the mailing lists archived anywhere? The mc and mc-devel lists are archived on the World Wide Web page (see the previous question). Other lists are not currently archived though Miguel keeps a private archive. Contact him if you want copies of past messages. 11 Administrivia 11.1 Authorship Questions and Answers is written by Janne Kukonlehto. Parts of it originate from Ian Jackson, Miguel de Icaza, Dugan Porter, Norbert Warmuth and Paul Sheer. 11.2 [UPDATED] File formats This document is available in HTML, postscript and PDF formats at http://mc.blackdown.org/mc/answers0.html. This document is available in ASCII format in the Midnight Commander source package. 11.3 Feedback is invited Send your comments about this document to janne@mc.blackdown.org Send your comments about the Midnight Commander to mc@nuclecu.unam.mx 11.4 Disclaimer and copyright Note that this document is provided as is. The information in it is not warranted to be correct; you use it at your own risk. You can use Questions and Answers according to GNU Public License (see the COPYING file in the Midnight Commander source distribution). Questions and Answers is not public domain. __________________________________________________________________ This document is maintained by Janne Kukonlehto <janne@mc.blackdown.org>.