freebsd-dev/contrib/tcsh/FAQ

263 lines
11 KiB
Plaintext
Raw Normal View History

2001-09-05 17:49:32 +00:00
[Home] FAQ
2001-09-05 17:49:32 +00:00
Home | RecentChanges | Preferences
_________________________________________________________________
2001-09-05 17:49:32 +00:00
This is for people who do not read the manual!
2001-09-05 17:49:32 +00:00
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... :-)
_________________________________________________________________
2001-09-05 17:49:32 +00:00
1. Why is the meta key broken in tcsh-5.20 and up?
2001-09-05 17:49:32 +00:00
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
2001-09-05 17:49:32 +00:00
if ( "`echotc meta`" == "yes" ) then
stty pass8
endif
endif
2001-09-05 17:49:32 +00:00
If you don't have pass8, maybe one of these would work..
2001-09-05 17:49:32 +00:00
stty -parity -evenp -oddp cs8 -istrip (rs6000)
stty -parenb -istrip cs8
2001-09-05 17:49:32 +00:00
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.
_________________________________________________________________
2001-09-05 17:49:32 +00:00
2. I ran 'dbxtool &' and 'shelltool &' from tcsh, and they end up in
cbreak and no echo mode?
2001-09-05 17:49:32 +00:00
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 &
2001-09-05 17:49:32 +00:00
If that does not work, for dbxtool at least you can add "sh stty sane"
in your .dbxinit
_________________________________________________________________
3. 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.
_________________________________________________________________
4. Where can I get csh sources?
2001-09-05 17:49:32 +00:00
Csh sources are now available with the 4.4BSD networking
distributions. You don't need csh sources to compile tcsh-6.0x.
_________________________________________________________________
2001-09-05 17:49:32 +00:00
5. I just made tcsh my login shell, and I cannot ftp any more?
2001-09-05 17:49:32 +00:00
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 :-)
_________________________________________________________________
2001-09-05 17:49:32 +00:00
6. 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?
2001-09-05 17:49:32 +00:00
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:
2001-09-05 17:49:32 +00:00
1. Don't use suntools
2. Use shelltool instead of cmdtool.
3. Unset edit in tcsh.
2001-09-05 17:49:32 +00:00
6b. 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'
2001-09-05 17:49:32 +00:00
6c. 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.
2001-09-05 17:49:32 +00:00
The workaround for 6b and 6c is doing "unset edit." Using shelltool
instead of cmdtool doesn't fix 6c.
_________________________________________________________________
2001-09-05 17:49:32 +00:00
7. I rlogin to another machine, and then no matter what I tell 'stty'
I cannot get it to pass 8 bit characters?
2001-09-05 17:49:32 +00:00
Maybe you need to use 'rlogin -8' to tell rlogin to pass 8 bit
characters.
_________________________________________________________________
2001-09-05 17:49:32 +00:00
8. Where do I get the public domain directory library?
2001-09-05 17:49:32 +00:00
Anonymous ftp to prep.ai.mit.edu:/pub/gnu/dirent.tar.Z
_________________________________________________________________
2001-09-05 17:49:32 +00:00
9. 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
2001-09-05 17:49:32 +00:00
Your <sys/ioctl.h> file is not ansi compliant. You have one of 3
choices:
2001-09-05 17:49:32 +00:00
1. Run fixincludes from the gcc distribution.
2. Add -traditional to the gcc flags.
3. Compile with cc.
_________________________________________________________________
2001-09-05 17:49:32 +00:00
10. I compiled tcsh with the SunOS? unbundled compiler and now things
get echo'ed twice.
2001-09-05 17:49:32 +00:00
It is a bug in the unbundled optimizer. Lower the optimization level.
_________________________________________________________________
2001-09-05 17:49:32 +00:00
11. How can I use the arrow keys with hpterm?
2001-09-05 17:49:32 +00:00
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
2001-09-05 17:49:32 +00:00
set prompt="%{`echotc smkx`%}$prompt"
endif
2001-09-05 17:49:32 +00:00
Note that by doing that you cannot use pgup and pgdn to scroll... Also
if you are using termcap, replace "smkx" with "ks"...
_________________________________________________________________
2001-09-05 17:49:32 +00:00
12. On POSIX machines ^C and ^Z will do not work when tcsh is a login
shell?
2001-09-05 17:49:32 +00:00
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.
_________________________________________________________________
13. 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]
2001-09-05 17:49:32 +00:00
You interrupted make, while it was making the automatically generated
headers. Type 'make clean; make'
_________________________________________________________________
14. 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'.
_________________________________________________________________
15. 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.
2001-09-05 17:49:32 +00:00
This is another manifestation of item 5. Just add the pathname to tcsh
in /etc/shells and everything should work fine.
_________________________________________________________________
2001-09-05 17:49:32 +00:00
16. On machines that use YP (NIS) tilde expansion might end up in
/dev/null
2001-09-05 17:49:32 +00:00
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
_________________________________________________________________
2001-09-05 17:49:32 +00:00
17. Script on SGI 4.0.5 does not give us a tty, so we cannot have job
control.
2001-09-05 17:49:32 +00:00
Their csh does not have job control either. Try:
2001-09-05 17:49:32 +00:00
% script
% cat > /dev/tty
_________________________________________________________________
2001-09-05 17:49:32 +00:00
18. I start tcsh and it takes a couple of minutes to get the prompt.
2001-09-05 17:49:32 +00:00
You have defined REMOTEHOST and your DNS is not responding. Either
undefine REMOTEHOST and recompile or fix your DNS.
_________________________________________________________________
2001-09-05 17:49:32 +00:00
19. If you need help generating your .cshrc file, check out:
http://www.imada.ou.dk/~blackie/dotfile/
_________________________________________________________________
20. 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
2001-09-05 17:49:32 +00:00
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.
_________________________________________________________________
21. 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.
_________________________________________________________________
22. 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.
_________________________________________________________________
2001-09-05 17:49:32 +00:00
23. Refreshing in command line editing can appear broken on some OS's
2001-09-05 17:49:32 +00:00
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.
_________________________________________________________________
2001-09-05 17:49:32 +00:00
Everything else is a bug :-(
2001-09-05 17:49:32 +00:00
Christos
_________________________________________________________________
2001-09-05 17:49:32 +00:00
Home | RecentChanges | Preferences
Edit text of this page | View other revisions
Last edited April 27, 2001 13:43 (diff)
Search: ____________________