216 lines
8.1 KiB
Plaintext
216 lines
8.1 KiB
Plaintext
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Last Updated:
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Fri Aug 25 13:27:45 EDT 2000
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This is for people who do not read the manual!
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So far people who don't read manuals don't read this either... I may
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call it README.*PLEASE* in the future, but then the same people won't
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be able to get ftp it... :-)
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1. Why is the meta key broken in tcsh-5.20 and up?
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On some machines the tty is not set up to pass 8 bit characters by default.
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Tcsh 5.19 used to try to determine if pass8 should be set by looking at
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the terminal's meta key. Unfortunately there is no good way of determining
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if the terminal can really pass 8 characters or not. Consider if you are
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logged in through a modem line with 7 bits and parity and your terminal
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has a meta key. Then tcsh 5.19 would set wrongly set pass8.
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If you did like the previous behavior you can add in /etc/csh.login, or
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in .login:
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if ( $?tcsh && $?prompt ) then
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if ( "`echotc meta`" == "yes" ) then
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stty pass8
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endif
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endif
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If you don't have pass8, maybe something like
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stty -parity -evenp -oddp cs8 -istrip (rs6000)
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or
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stty -parenb -istrip cs8
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would work..
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Finally, tcsh will bind all printable meta characters to the self
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insert command. If you don't want that to happen (i.e. use the printable
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meta characters for commands) setenv NOREBIND.
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2. I ran 'dbxtool &' and 'shelltool &' from tcsh, and they end up in cbreak
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and no echo mode?
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These programs are broken. Background jobs should not try to look at the
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tty. What happens is that dbxtool looks in stderr to inherit the tty
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setups, but tcsh sets up the tty in cbreak and -echo modes, so that it
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can do line editing. This cannot be fixed because tcsh cannot give away
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the tty. A work-around is:
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dbxtool < /dev/null >& /dev/null &
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or
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/usr/etc/setsid dbxtool &
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If that does not work, for dbxtool at least you can add "sh stty sane"
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in your .dbxinit
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3. I tried to compile tcsh and it cannot find <locale.h>?
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Your system does not support NLS. Undefine NLS in config_f.h and it
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should work fine.
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4. Where can I get csh sources?
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Csh sources are now available with the 4.4BSD networking distributions.
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You don't need csh sources to compile tcsh-6.0x.
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5. I just made tcsh my login shell, and I cannot ftp any more?
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Newer versions of the ftp daemon check for the validity of the
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user's shell before they allow logins. The list of valid login
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shells is either hardcoded or it is usually in a file called
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/etc/shells. If it is hard-coded, then you are out of luck and
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your best bet is to get a newer version of ftpd. Otherwise add
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tcsh to the list of shells. [For AIX this file is called
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/etc/security/login.cfg]. Remember that the full path is required.
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If there is no /etc/shells, and you are creating one, remember to
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add /bin/csh, /bin/sh, and any other valid shells for your system,
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so that other people can ftp too :-)
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6. I am using SunView/OpenWindows and editing is screwed up. In
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particular my arrow keys and backspace don't work right. What
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am I doing wrong?
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Well, cmdtool tries to do its own command line editing and the
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effect you get is one of using an editor inside an editor. Both
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try to interpret the arrow key sequences and cmdtool wins since
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it gets them first. The solutions are in my order of preference:
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1 Don't use suntools
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2 Use shelltool instead of cmdtool.
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3 Unset edit in tcsh.
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6b. On a SPARCstation running Solaris 2.x and OpenWindows 3.1,
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inside a cmdtool, the short-cut key sequence to clear log
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(i.e. Meta-e or Diamond-e) doesn't work: it just echos 'e'
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6c. On a SPARCstation running Solaris 2.x and OpenWindows 3.1,
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maketool (within SPARCworks) doesn't work: it just does
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a `cd' to the working directory then stops.
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The workaround for 6b and 6c is doing "unset edit."
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Using shelltool instead of cmdtool doesn't fix 6c.
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7. I rlogin to another machine, and then no matter what I tell 'stty'
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I cannot get it to pass 8 bit characters?
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Maybe you need to use 'rlogin -8' to tell rlogin to pass 8
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bit characters.
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8. Where do I get the public domain directory library?
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Anonymous ftp to prep.ai.mit.edu:/pub/gnu/dirent.tar.Z
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9. I compiled tcsh using gcc, and when I start up it says:
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tcsh: Warning no access to tty (Invalid Argument).
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Thus no job control in this shell
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Your <sys/ioctl.h> file is not ansi compliant. You have one of 3 choices:
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a. Run fixincludes from the gcc distribution.
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b. Add -traditional to the gcc flags.
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c. Compile with cc.
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10. I compiled tcsh with the SunOS unbundled compiler and now things
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get echo'ed twice.
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It is a bug in the unbundled optimizer. Lower the optimization level.
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11. How can I use the arrow keys with hpterm?
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Hp terminals use the arrow keys internally. You can tell hpterm not
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to do that, by sending it the termcap sequence smkx. Since this
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has to be done all the time, the easiest thing is to put it as an
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alias for precmd, or inside the prompt:
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if ($term == "hp") then
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set prompt="%{`echotc smkx`%}$prompt"
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endif
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Note that by doing that you cannot use pgup and pgdn to scroll...
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Also if you are using termcap, replace "smkx" with "ks"...
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12. On POSIX machines ^C and ^Z will do not work when tcsh is a login
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shell?
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Make sure that the interrupt character is set to ^C and suspend
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is set to ^Z; 'stty -a' will show you the current stty settings;
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'stty intr ^C susp ^Z' will set them to ^C and ^Z respectively.
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13. I am trying to compile tcsh and I am getting compile errors that
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look like:
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>sh.c:???: `STR???' undeclared, outside of functions [gcc]
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or
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>"sh.c", line ???: STR??? undefined [cc]
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You interrupted make, while it was making the automatically
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generated headers. Type 'make clean; make'
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14. On the cray, sometimes the CR/LF mapping gets screwed up.
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You are probably logged in to the cray via telnet. Cray's
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telnetd implements line mode selection the telnet client
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you are using does not implement telnet line mode.
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This cause the Cray's telnetd to try to use KLUDGELINEMODE.
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You can turn off telnet line mode from the cray side by
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doing a "stty -extproc", or you can get the Cray AIC to build
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a telnetd without KLUDGELINEMODE, or you can compile
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a new telnet client (from the BSD net2 tape), or at least
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on the suns use: 'mode character'.
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15. On AU/X, I made tcsh my startup shell, but the mac desktop is not
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starting up (no X11 or Finder), and I only get console emulation.
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This is another manifestation of item 5. Just add the pathname
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to tcsh in /etc/shells and everything should work fine.
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16. On machines that use YP (NIS) tilde expansion might end up in /dev/null
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If this happens complain to your vendor, to get a new version of NIS.
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You can fix that in tcsh by defining YPBUGS in config.h
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17. Script on SGI 4.0.5 does not give us a tty, so we cannot have job
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control. Their csh does not have job control either. Try:
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% script
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% cat > /dev/tty
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18. I start tcsh and it takes a couple of minutes to get the prompt.
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You have defined REMOTEHOST and your DNS is not responding. Either
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undefine REMOTEHOST and recompile or fix your DNS.
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19. If you need help generating your .cshrc file, check out:
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http://www.imada.ou.dk/~blackie/dotfile/
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20. On POSIX systems the kernel will send hup signals to all the processes
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in the foreground process group if 'stty hupcl' is set. For example
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./tcsh
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echo $$
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591
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./tcsh
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kill -6 591
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Will kill everything, since hup will be sent to all tcsh processes.
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To avoid that you can set stty -hupcl, but it is not recommended.
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21. When I rsh the meta key stops working on the remote machine.
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Try using rsh -8; this option is undocumented on some systems,
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but it works. If that does not work, get and use ssh/sshd. You'll
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be better off from a security point of view anyway.
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22. Tcsh compiled under hp/ux-10.x does not pass resource limits correctly
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when ran on hp/ux-11.x systems. This is a problem with lack of ABI
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compatibility between the two systems. The only solution is to recompile.
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christos
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Everything else is a bug :-(
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