Changing /etc/termcap in 4.8 - How can I?
Jim Ramsay
i.am at jimramsay.com
Wed Dec 17 08:16:27 PST 2003
Malcolm Kay wrote:
> On Wed, 17 Dec 2003 06:47, Jim Ramsay wrote:
>
>>I have tried to add an extra entry to /etc/termcap:
>>
>>rxvt-cygwin-native|rxvt terminal emulator (native MS Windows/Cygwin):\
>>
>> :pa#64:Co#8:AF=\E[3%dm:AB=\E[4%dm:op=\E[39;49m:\
>>:
>>:ac=+\257,\256-^0\333`\004a\261f\370g\361h\260j\331k\277l\332m\300n\305o~p\
>>:304q\304r\304s_t\303u\264v\301w\302x\263y\363z\362{\343|\330~\376:\
>>:
>> :tc=rxvt-mono:
>>
>>to try to get linedrawing characters working correctly in my connection
>>from my work computer (cygwin/ssh) to my freebsd machine at home.
>>
>>1) I edited the file as root and put it just after the existing 'rxvt'
>>entry.
>>
>
>
> The directory entry /etc/termcap is normally a symbolic link to
> /usr/share/misc/termcap, which I think you already realised.
>
> The tricky bit is what happens when you attempt to edit a file via a
> symbolic link. Either of two things can happen depending on the editor you
> are using:
> 1) You actually edit the file at the end of the link and the link remains
> intact.
I used "vim" and I think that this occurred.
> 2) The editor presents you with the text from the file at the end of the link
> but on saving the changes deletes the link and substitutes the changed text as
> a file. The file that was at the end of the link remains unchanged.
>
> So you should make sure /etc/termcap is still a link to
> /usr/share/misc/termcap.
>
> Now go to /usr/share/misc and edit termcap and then execute cap_mkdb.
I have tried this also, but no difference in tcsh's behaviour.
I have even tried editing termcap.src in /usr/src/share/termcap/ and
doing a 'make install' there to see if I'm missing a step... but no luck.
I also received an off-list tip from Karl Vogel:
> I've noticed that both zsh and tcsh can get really snotty if the
> environment variables are not set in this order:
>
> unsetenv TERMCAP
> unsetenv TERMINFO
> unsetenv TERM
> setenv TERMCAP /path/to/your/termcap/file (or actual termcap entry)
> setenv TERMINFO /path/to/your/terminfo/directory
> setenv TERM xterm
But neither TERMCAP nor TERMINFO are set in my normal tcsh environment.
I have tried setting and unsetting them in the order given here and
many other permutations, to no success.
I have tried logging out and back in again, in case tcsh caches termcap
somewhere that isn't updated without re-running tcsh, but I don't think
this is the case.
The only thing I haven't tried yet is rebooting - technically I don't
think I would have to.
Is there some utility somewhere that can tell me if I've got a typo in
my termcap or something which would prevent tcsh from reading my new
entry properly?
I suppose could write my own curses program to do this... maybe.
Is there some utility somewhere which will translate my termcap into
terminfo so I can try that? Why is there no terminfo stuff in FreeBSD 4.8?
--
Jim Ramsay
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