Baslinux mailing list

[sindi keesan <keesan AT sdf.lonestar.org>]

On Sat, 8 Jan 2005 3aoo-cvfd AT dea.spamcon.org wrote:

> sindi keesan wrote:
> > zsh gives me \w<\$>
>
> It appears that zsh is reading /etc/profile
> because that's where PS1 (the prompt string)
> is set to \w<\$>
>
> For bash and ash, \w means: current directory
> Apparently for zsh, \w means:  \w
>
> It is possible to design /etc/profile to feed
> different shells.  For example:
> ------------------------------------
> if [ "$SHELL" = "/bin/ksh"  ]; then
> PS1="! $ "
> elif [ "$SHELL" = "/bin/zsh" ]; then
> PS1="%n@%m:%~%# "
> else
> PS1='\w<\$>'
> fi
> ------------------------------------
> The above will only work if $SHELL correctly
> shows /bin/ksh and /bin/zsh for those shells.
> You might want to check that first:
> -----------
> echo $SHELL
> -----------

I notice that BL3 has a file /shell (/etc/shell?) listing four shells not 
including ksh or bash which I think are:  csh, tcsh, ash, zsh.  I ran into 
something on the web saying you need to have all the shells you use listed 
in that file in order for ftpd to work properly.  Is bash the default, and 
that is why you did not include it?  I have these other four plus bash 
(csh being a link to tcsh) but not ksh.  Supposedly you can run ksh from 
zsh but I have no idea how to do that - do I just make a symlink and type 
ksh (like typing e3pi to run e3 in pico mode)?

How would I modify your above script to set up also tcsh/csh to show the 
working directory at login rather than just #?  I will try echo $SHELL 
tomorrow on the laptop computer where I put the shells.  Is SHELL 
something you set in the environment?  (I might try it here at sdf under 
NetBSD).

Just learning to understand the above script will be a good start at 
learning shell scripting.  Or is this not a shell-specific script but just 
a generic script?  Do I run this from any shell when logging in, as part 
of profile?

Is PS1 a way to set the prompt in ash/bash?  I ran across setprompt="  " 
for zsh but it probably goes into some zsh-specific file like .zshenv or 
the like.  zsh had three levels of prompts that occur in different 
circumstances.  I will see if one of the links for beginners at your site 
or in the default links hotlist has a good intro to shells.

You can use tcsh and probably zsh to correct typos in commands or let you 
edit them (yes/no/edit).  Lots to learn.

> Cheers,
> Steven
>
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keesan AT sdf.lonestar.org
SDF Public Access UNIX System - http://sdf.lonestar.org