Date: Mon, 03 Aug 1998 17:37:45 -0700 From: Studded <Studded@dal.net> To: Sascha Schumann <sas@schell.de> Cc: William Woods <wwoods@cybcon.com>, "freebsd-questions@FreeBSD.ORG" <freebsd-questions@FreeBSD.ORG> Subject: Re: BASH prompt question Message-ID: <35C657D9.4B2577D4@dal.net> References: <Pine.LNX.3.96.980803142023.11763B-100000@www.schell.de>
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Sascha Schumann wrote:
>
> On Sun, 2 Aug 1998, William Woods wrote:
>
> > I would like to make my bash prompt show a little more info, like what dir the
> > user is in. How would I do this?
>
> Edit /etc/profile and insert at the end:
>
> test "$SHELL" = "/bin/bash" && test -e ~/.bashrc && source ~/.bashrc
Why are you inserting a test to accomplish something that bash does by
default?
> PS1='\u@\h:`pwd -P` $ '
> export PS1
Again, working too hard. :) Why call a shell function every time you
hit return? The following accomplishes what you have there, and adds
your correction for the \$:
export PS1='\u@\h: \w \$'
This syntax is available in bash 2 and above, but you should be using
bash 2 anyway. :)
If you're using xterm I use the following prompt to add information to
my title bar, put user@ME (which is my machine, since I log into a lot
of different ones) and the current working directory on one line, and
the actual prompt below that since I like the full path in the prompt
but it can get too long.
if [ $TERM = xterm ]; then
export PS1='\[\e]1;My Desk\a\e]2;$PWD\a\][\u@ME \w]\n \#\$ '
else
export PS1='[\u@ME \w]\n \#\$ '
fi
You can parse the line that works for xterm's as follows:
\[ - start a sequence of non-printing characters
\e]1;My Desk\a
\e - an ASCII escape character (033)
]1; - xterm'ism for the name of the icon
(works for wm's like afterstep)
My Desk - literal text string
\a - an ASCII bell character (07)
This ends the first xterm sequence
\e]2;$PWD\a
In the second xterm sequence I like to use $PWD rather than \w because
otherwise it puts '~' in the title when you use just 'cd' to return to
your home.
\] - ends the non-printing character part of the prompt.
[\u@ME \w]
[ - literal [ character
\u - the username of the current user
@ME - literal characters
\w - the current working directory
] - literal ] character
\n - newline
\# - the command number of this command
\$ - if the effective UID is 0, a #, otherwise a $
Example while I'm in my home directory:
[myusername@ME ~]
22$
Another example:
[myusername@ME /usr/ports/shells/bash2]
23$
Here's some info from misc.c in xterm's source about the escape codes
for the title and icon:
case 0: /* new icon name and title*/
case 1: /* new icon name only */
case 2: /* new title only */
This may be more details than the original poster wanted, but the goal
is to show what's possible. Some people have implemented colored prompts
using ansi escape codes, but I haven't gotten that obsessed yet. :)
Hope this helps,
Doug
--
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