POSIX says an empty entry in CDPATH shall not result in the new directory
being printed, while any non-empty entry shall result in the new directory
being printed, including ".". Therefore, the value of CDPATH should almost
always start with a colon, not dot and colon.
Our sh does not print the name for empty entries as well as "." entries.
MFC after: 1 week
Right now syscons(4) uses a cons25-style terminal emulator. The
disadvantages of that are:
- Little compatibility with embedded devices with serial interfaces.
- Bad bandwidth efficiency, mainly because of the lack of scrolling
regions.
- A very hard transition path to support for modern character sets like
UTF-8.
Our terminal emulation library, libteken, has been supporting
xterm-style terminal emulation for months, so flip the switch and make
everyone use an xterm-style console driver.
I still have to enable this on i386. Right now pc98 and i386 share the
same /etc/ttys file. I'm not going to switch pc98, because it uses its
own Kanji-capable cons25 emulator.
IMPORTANT: What to do if things go wrong (i.e. graphical artifacts):
- Run the application inside script(1), try to reduce the problem and
send me the log file.
- In the mean time, you can run `vidcontrol -T cons25' and `export
TERM=cons25' so you can run applications the same way you did before.
You can also build your kernel with `options TEKEN_CONS25' to make all
virtual terminals use the cons25 emulator by default.
Discussed on: current@
these days, and the average user expects ^A and arrow keys to work, however
if they know nothing of editing modes, they will think sh(1) just sucks. It
is likely that because of defaults on most systems and with most shells that
anyone who actually wants vi(1) editing mode will have 'set -o vi'. This
won't affect existing accounts, this way, of course. Only accounts with
.shrc from new etc/skel will be affected. This is much better than making
the change in sh(1).
o Comment out display of fortune by default.
o Synch root's .cshrc/.login and non-root's .cshrc/.login in terms of
gratuitous variables set (EDITOR).
o Remove some commented out variables set inconsistently or gratuitously,
such as Interviews settings, 8-bit German locale for root only.
o Synchronize comments in header, as well as references to appropriate man
pages.
o Remove MANPATH setting as apparently /etc/manpath.config does all that
already.
Similar changes probably need to be made in other dot.* files for root
and skel, as all of these files seem to set different aliases, environmental
variables, prompts, and have different semantics.
As a result of this patch, leaving aside the setting of a special prompt
for root, users of csh and tcsh should find similar environments when
logging in or su'ing to any account using that shell.
Reviewed by: asmodai, nbm, will
. Don't clobber the TERM setting; it's supposed to be done by /etc/ttys
already.
. Comment out the Interviews stuff, 98 % of all users probably won't
ever use it.
. Install the files with better default permissions in the skeleton
directory; pw(8) retains the permissions when creating a new
acount, and installing them read-only is stupid, yet installing
.rhosts world-readable is dangerous.
2.2 candidate
This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.
Boy, I'm glad we're not using sup anymore. This update would have been
insane otherwise.
