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@@ -0,0 +1,304 @@ + + [Home] FAQ + + Home | RecentChanges | Preferences + _________________________________________________________________ + + This is for people who do not read the manual! + + So far people who don't read manuals don't read this either... I may + call it README.*PLEASE* in the future, but then the same people won't + be able to get ftp it... :-) + _________________________________________________________________ + + 1. Where can I find tcsh sources? + + See http://www.tcsh.org/MostRecentRelease for download locations. + _________________________________________________________________ + + 2. Why is the meta key broken in tcsh-5.20 and up? + + On some machines the tty is not set up to pass 8 bit characters by + default. Tcsh 5.19 used to try to determine if pass8 should be set by + looking at the terminal's meta key. Unfortunately there is no good way + of determining if the terminal can really pass 8 characters or not. + Consider if you are logged in through a modem line with 7 bits and + parity and your terminal has a meta key. Then tcsh 5.19 would set + wrongly set pass8. + + If you did like the previous behavior you can add in /etc/csh.login, + or in .login: + + if ( $?tcsh && $?prompt ) then + if ( "`echotc meta`" == "yes" ) then + stty pass8 + endif + endif + + If you don't have pass8, maybe one of these would work.. + + stty -parity -evenp -oddp cs8 -istrip (rs6000) + stty -parenb -istrip cs8 + + Finally, tcsh will bind all printable meta characters to the self + insert command. If you don't want that to happen (i.e. use the + printable meta characters for commands) setenv NOREBIND. + _________________________________________________________________ + + 3. I ran 'dbxtool &' and 'shelltool &' from tcsh, and they end up in + cbreak and no echo mode? + + These programs are broken. Background jobs should not try to look at + the tty. What happens is that dbxtool looks in stderr to inherit the + tty setups, but tcsh sets up the tty in cbreak and -echo modes, so + that it can do line editing. This cannot be fixed because tcsh cannot + give away the tty. Pick one of the following as a workaround: + + dbxtool < /dev/null >& /dev/null & + /usr/etc/setsid dbxtool & + + If that does not work, for dbxtool at least you can add "sh stty sane" + in your .dbxinit + _________________________________________________________________ + + 4. I tried to compile tcsh and it cannot find <locale.h>? + + Your system does not support NLS. Undefine NLS in config_f.h and it + should work fine. + _________________________________________________________________ + + 5. Where can I get csh sources? + + Csh sources are now available with the 4.4BSD networking + distributions. You don't need csh sources to compile tcsh-6.0x. + _________________________________________________________________ + + 6. I just made tcsh my login shell, and I cannot ftp any more? + + Newer versions of the ftp daemon check for the validity of the user's + shell before they allow logins. The list of valid login shells is + either hardcoded or it is usually in a file called /etc/shells. If it + is hard-coded, then you are out of luck and your best bet is to get a + newer version of ftpd. Otherwise add tcsh to the list of shells. [For + AIX this file is called /etc/security/login.cfg.] Remember that the + full path is required. If there is no /etc/shells, and you are + creating one, remember to add /bin/csh, /bin/sh, and any other valid + shells for your system, so that other people can ftp too :-) + _________________________________________________________________ + + 7. I am using SunView or OpenWindows and editing is screwed up. In + particular my arrow keys and backspace don't work right. What am I + doing wrong? + + Well, cmdtool tries to do its own command line editing and the effect + you get is one of using an editor inside an editor. Both try to + interpret the arrow key sequences and cmdtool wins since it gets them + first. The solutions are in my order of preference: + + 1. Don't use suntools + 2. Use shelltool instead of cmdtool. + 3. Unset edit in tcsh. + _________________________________________________________________ + + 8. On a SPARCstation running Solaris 2.x and OpenWindows 3.1, inside a + cmdtool, the short-cut key sequence to clear log (i.e. Meta-e or + Diamond-e) doesn't work: it just echos 'e'; or + + Unset edit in tcsh. + _________________________________________________________________ + + 9. On a SPARCstation running Solaris 2.x and OpenWindows 3.1, maketool + (within SPARCworks) doesn't work: it just does a `cd' to the working + directory then stops. + + Unset edit in tcsh. Using shelltool instead of cmdtool does not fix + this. + _________________________________________________________________ + + 10. I rlogin to another machine, and then no matter what I tell 'stty' + I cannot get it to pass 8 bit characters? + + Maybe you need to use 'rlogin -8' to tell rlogin to pass 8 bit + characters. + _________________________________________________________________ + + 11. Where do I get the public domain directory library? + + Anonymous ftp to prep.ai.mit.edu:/pub/gnu/dirent.tar.Z + _________________________________________________________________ + + 12. I compiled tcsh using gcc, and when I start up it says: tcsh: + Warning no access to tty (Invalid Argument). Thus no job control in + this shell + + Your <sys/ioctl.h> file is not ansi compliant. You have one of 3 + choices: + + 1. Run fixincludes from the gcc distribution. + 2. Add -traditional to the gcc flags. + 3. Compile with cc. + _________________________________________________________________ + + 13. I compiled tcsh with the SunOS unbundled compiler and now things + get echo'ed twice. + + It is a bug in the unbundled optimizer. Lower the optimization level. + _________________________________________________________________ + + 14. How can I use the arrow keys with hpterm? + + Hp terminals use the arrow keys internally. You can tell hpterm not to + do that, by sending it the termcap sequence smkx. Since this has to be + done all the time, the easiest thing is to put it as an alias for + precmd, or inside the prompt: + + if ($term == "hp") then + set prompt="%{`echotc smkx`%}$prompt" + endif + + Note that by doing that you cannot use pgup and pgdn to scroll... Also + if you are using termcap, replace "smkx" with "ks"... + _________________________________________________________________ + + 15. On POSIX machines ^C and ^Z will do not work when tcsh is a login + shell? + + Make sure that the interrupt character is set to ^C and suspend is set + to ^Z; 'stty -a' will show you the current stty settings; 'stty intr + ^C susp ^Z' will set them to ^C and ^Z respectively. + _________________________________________________________________ + + 16. I am trying to compile tcsh and I am getting compile errors that + look like: + + >sh.c:???: `STR???' undeclared, outside of functions [gcc] + >"sh.c", line ???: STR??? undefined [cc] + + You interrupted make, while it was making the automatically generated + headers. Type 'make clean; make' + _________________________________________________________________ + + 17. On the cray, sometimes the CR/LF mapping gets screwed up. + + You are probably logged in to the cray via telnet. Cray's telnetd + implements line mode selection the telnet client you are using does + not implement telnet line mode. This cause the Cray's telnetd to try + to use KLUDGELINEMODE. You can turn off telnet line mode from the cray + side by doing a "stty -extproc", or you can get the Cray AIC to build + a telnetd without KLUDGELINEMODE, or you can compile a new telnet + client (from the BSD net2 tape), or at least on the suns use: 'mode + character'. + _________________________________________________________________ + + 18. On AU/X, I made tcsh my startup shell, but the mac desktop is not + starting up (no X11 or Finder), and I only get console emulation. + + This is another manifestation of item 5. Just add the pathname to tcsh + in /etc/shells and everything should work fine. + _________________________________________________________________ + + 19. On machines that use YP (NIS) tilde expansion might end up in + /dev/null + + If this happens complain to your vendor, to get a new version of NIS. + You can fix that in tcsh by defining YPBUGS in config.h + _________________________________________________________________ + + 20. Script on SGI 4.0.5 does not give us a tty, so we cannot have job + control. + + Their csh does not have job control either. Try: + + % script + % cat > /dev/tty + _________________________________________________________________ + + 21. I start tcsh and it takes a couple of minutes to get the prompt. + + You have defined REMOTEHOST and your DNS is not responding. Either + undefine REMOTEHOST and recompile or fix your DNS. + _________________________________________________________________ + + 22. If you need help generating your .cshrc file, check out: + + http://www.imada.sdu.dk/~blackie/dotfile/ + + or + http://www.dotfiles.com + _________________________________________________________________ + + 23. On POSIX systems the kernel will send hup signals to all the + processes in the foreground process group if 'stty hupcl' is set. + + For example + + ./tcsh + echo $$ + 591 + ./tcsh + kill -6 591 + + Will kill everything, since hup will be sent to all tcsh processes. To + avoid that you can set stty -hupcl, but it is not recommended. + _________________________________________________________________ + + 24. When I rsh the meta key stops working on the remote machine. + + Try using rsh -8; this option is undocumented on some systems, but it + works. If that does not work, get and use ssh/sshd. You'll be better + off from a security point of view anyway. + _________________________________________________________________ + + 25. Tcsh compiled under hp/ux-10.x does not pass resource limits + correctly when ran on hp/ux-11.x systems. + + This is a problem with lack of ABI compatibility between the two + systems. The only solution is to recompile. + _________________________________________________________________ + + 26. Refreshing in command line editing can appear broken on some OS's + + This is because the termcap/terminfo description lies about the + ability of the terminal to use tabs. At least on Compaq/DEC Alpha + OSF/1 3.x and 4.x systems, stty -tabs will cause problems. + _________________________________________________________________ + + 27. Where can I learn the merits of tcsh vs. bash vs. csh vs. sh etc? + + You can read the manual page section titled [NEW FEATURES] listing + features that tcsh adds to csh. + + You can read Tom Christiansen's [Csh Programming Considered Harmful], + a document advocating that csh (and by extension, tcsh) should not be + used for writing shell scripts. + + XXX: Need to find something about [bash], but bash is sh-compatible + and has many of the same interactive features of tcsh (command + completion does not appear to be as flexible, though). + + [Curtains up: introducing the Z shell] has a pretty good rundown on + zsh. Aside from the arguments about csh being evil, tcsh appears to + compare well with zsh [zsh]. Zsh is sh and ksh compatible, with many + of the interactive features of tcsh. + _________________________________________________________________ + + 28. Why does FreeBSD's tcsh do history browsing differently than I + expect? + + On FreeBSD, by default, the up arrow is set to + "history-search-backward", rather than the default "up-history". As a + result, if you type (part of) a word and press up arrow, you'll see + previous commands that match the prefix. Pretty useful, actually, + although it takes some getting used to. You can use bindkey to see + your settings, and to rebind up & down differently if desired. + _________________________________________________________________ + + Everything else is a bug :-( + + Christos + _________________________________________________________________ + + Home | RecentChanges | Preferences + Edit text of this page | View other revisions + Last edited April 29, 2004 15:02 (diff) + Search: ____________________ |
