mirror of
https://github.com/Ponce/slackbuilds
synced 2024-11-26 22:06:35 +01:00
79 lines
3.1 KiB
Text
79 lines
3.1 KiB
Text
|
|
Notes for using SlackBuilds.org csh package:
|
|
|
|
This csh build conflicts slightly with Slackware's tcsh package. The
|
|
easiest way to use this is to "removepkg tcsh" before installing csh. If
|
|
you want to do this, you can skip the next section.
|
|
|
|
|
|
Installing csh and tcsh together
|
|
--------------------------------
|
|
|
|
It's possible for csh to coexist with tcsh, with a few caveats:
|
|
|
|
The shell is installed as /usr/bin/csh to avoid conflicting with
|
|
Slackware's own tcsh package (which makes /bin/csh a symlink to tcsh). If
|
|
you want to make /bin/csh point to the real csh, you have two choices:
|
|
|
|
1. remove the /bin/csh symlink before installing the csh package:
|
|
# rm -f /bin/csh
|
|
The /bin/csh symlink will get created when csh is installed.
|
|
|
|
2. adjust the symlink manually after csh installation:
|
|
# rm -f /bin/csh
|
|
# ln -s ../usr/bin/csh /bin/csh
|
|
This works the same way as e.g. the /usr/bin/vi symlink, which points
|
|
to either elvis or vim.
|
|
|
|
If you have both csh and Slackware's tcsh installed, and you remove csh,
|
|
you'll want to reinstall tcsh to clean up afterwards.
|
|
|
|
Removing tcsh while csh is installed should be perfectly OK.
|
|
|
|
Installing/upgrading tcsh when csh is already installed is probably a
|
|
bad idea. Remove csh first, install tcsh, then install csh.
|
|
|
|
As far as I know, nothing in Slackware depends on tcsh, so if you
|
|
mess things up, you won't break your OS. You can always put things
|
|
back to Slackware's default state by removing both csh and tsch, then
|
|
reinstalling tcsh.
|
|
|
|
|
|
Using csh as a login shell
|
|
--------------------------
|
|
|
|
If you want to use csh as a login shell, be aware that Slackware's
|
|
shipped /etc/csh.login (from the etc package) contains tcsh-specific
|
|
code, which prevents the /etc/profile.d/*.csh scripts from running. This
|
|
won't prevent you from logging in, but your environment won't be set up
|
|
correctly, you'll see "[: No match." errors, and your prompt won't show
|
|
your username, hostname, current directory as tsch does.
|
|
|
|
To fix this, you can replace /etc/csh.login with the /etc/csh.login.new
|
|
installed with the csh package. It behaves the same as the original,
|
|
for tcsh, and has conditional code to make csh behave correctly.
|
|
|
|
# cp /etc/csh.login /etc/csh.login.orig # back up original just in case
|
|
# mv /etc/csh.login.new /etc/csh.login
|
|
|
|
If you don't want to replace Slackware's csh.login, just rm
|
|
/etc/csh.login.new and forget about it.
|
|
|
|
|
|
Other notes
|
|
-----------
|
|
|
|
You should read the man page for csh. Also
|
|
/usr/doc/csh-$VERSION/paper.(txt|pdf) is a good intro to the C shell for
|
|
beginning users. Also, if you're an experienced tcsh user, you might
|
|
re-read the NEW FEATURES section in tcsh's man page (it describes the
|
|
tcsh features you won't find in csh).
|
|
|
|
NEVER make csh the default shell for the root account! In fact, it's
|
|
probably a bad idea to ever change root's default shell on any Linux or
|
|
UNIX system, especially a third-party one that isn't shipped with the OS.
|
|
|
|
The man page for csh states that "Words can be no longer than 1024
|
|
characters", but this build of csh increases the limit to 8192 (actually,
|
|
BUFSIZ as defined in stdio.h). This was done so Slackware's profile.d
|
|
scripts will work correctly (particularly coreutils-dircolor.sh).
|