.emacs_bash

.emacs_bash

[Will Parsons]

For quite a long time now I've been mildly annoyed that when I invoke a 
shell (bash) under Emacs (running in a GNU/Linux system) that I get a string
of prompts, like:

1 isis$ 2 isis$ 3 isis$ 4 isis$ 5 isis$ 

(PS1 is set to '\! \h\$ '.)

I finally got around to tracking this down, and it appears it's being caused
by .emacs_bash.  In ~/.bashrc, I have:

export LS_OPTIONS=--color

so that I have pretty colours in ls output, but since this screws up ls 
output under Emacs, I created the following .emacs_bash:

======
#  .emacs_bash
#  This file contains additional commands to be run after starting up the
#  bash shell under emacs.
unset LS_OPTIONS
======

If I remove this file, the multiple prompts go away (and I have the screwed
up ls output), but I don't understand why it causes the multiple prompts.

- Will

Re: .emacs_bash

[Peter Dyballa]

Am 05.01.2006 um 03:25 schrieb Will Parsons:

> If I remove this file, the multiple prompts go away (and I have the  
> screwed
> up ls output), but I don't understand why it causes the multiple  
> prompts.

I have a similiar case with tcsh. Here I can clearly write that  
unsetenv commands in .emacs_tcsh make the multiple prompts. For  
your .emacs_bash example no reason can be found. Could be the  
execution of .bashrc causes them ... ?

A way to trace the reason is to add at the beginning and at the end  
of the dot files a statement like

	echo '<whatever> file starts|ends here'

This way you can at least find out which file makes it happen.

--
Greetings

   Pete

Genius may have its limitations, but stupidity is not thus handicapped.
		-- Elbert Hubbard

Re: .emacs_bash

[Will Parsons]

Will Parsons wrote:
> For quite a long time now I've been mildly annoyed that when I invoke a 
> shell (bash) under Emacs (running in a GNU/Linux system) that I get a string
> of prompts, like:
>
> 1 isis$ 2 isis$ 3 isis$ 4 isis$ 5 isis$ 
>
> (PS1 is set to '\! \h\$ '.)
>
> I finally got around to tracking this down, and it appears it's being caused
> by .emacs_bash.  In ~/.bashrc, I have:
>
> export LS_OPTIONS=--color
>
> so that I have pretty colours in ls output, but since this screws up ls 
> output under Emacs, I created the following .emacs_bash:
>
>======
> #  .emacs_bash
> #  This file contains additional commands to be run after starting up the
> #  bash shell under emacs.
> unset LS_OPTIONS
>======
>
> If I remove this file, the multiple prompts go away (and I have the screwed
> up ls output), but I don't understand why it causes the multiple prompts.
>
Following a suggestion by the only responder to my original post, I added 
echo statements to .bashrc and .emacs_bash to see where the multiple prompts
were coming from.  With .emacs_bash as follows:

=====
echo ".emacs_bash starts here"
#  .emacs_bash
#  This file contains additional commands to be run after starting up the
#  bash shell under emacs.
echo "LS_OPTIONS = $LS_OPTIONS"
unset LS_OPTIONS
echo ".emacs_bash ends here"
=====

starting up a shell I see:

.bashrc starts here
.bashrc ends here
1 isis$ .emacs_bash starts here
2 isis$ 3 isis$ 4 isis$ 5 isis$ LS_OPTIONS = --color
6 isis$ 7 isis$ .emacs_bash ends here
8 isis$ 

Deleting the three comment lines in .emacs_bash, I see:

.bashrc starts here
.bashrc ends here
1 isis$ .emacs_bash starts here
2 isis$ LS_OPTIONS = --color
3 isis$ 4 isis$ .emacs_bash ends here
5 isis$ 

So it looks like the extra prompts are related to the lines in .emacs_bash,
whether they are comment lines or not.  As I said, this is a minor annoyance,
but I still would like a fix and/or explanation if possible.

- Will

Re: .emacs_bash

[Peter Dyballa]

Am 22.01.2006 um 23:27 schrieb Will Parsons:

> So it looks like the extra prompts are related to the lines  
> in .emacs_bash,
> whether they are comment lines or not.  As I said, this is a minor  
> annoyance,
> but I still would like a fix and/or explanation if possible.

You could save one more line in ~/.emacs_bash and one more prompt in  
Emacs' *shell* buffer by checking the value of TERM in .bashrc or  
such *before* setting LS_OPTIONS -- then you would not need to unset  
it. Only when TERM is *not* emacs or *not* dumb, then it's worth to  
set them. Or you check for those xterm (and other) variations in  
which ls can produce colourful output ...

--
Greetings

   Pete                           <]
              o        __o         |__    o       HPV, the real
     ___o    /I       -\<,         |o \  -\),-%     high speed!
___/\ /\___./ \___...O/ O____.....`-O-'-()--o_________________

Re: .emacs_bash

[stpap]

FYI, you can enable colorised ls output by doing

M-x ansi-color-for-comint-mode-on

or add

(add-hook 'shell-mode-hook 'ansi-color-for-comint-mode-on)

in your startup emacs files

Dired and wild cards

[Tim Johnson]

In Xemacs, I can do the follow:
C-x, d and then at the prompt, put in "*.html" 
and get a wild card listing.

In GNU emacs, I have to do
M-: and then (dired "*.html").
Is there easier way to do this in GNU Emacs?

:-) I know, I'm lazy, but I'm always looking for an easier, quicker way
to do things..... 

Thanks
tim

-- 
Tim Johnson <tim@johnsons-web.com>
      http://www.alaska-internet-solutions.com

RE: Dired and wild cards

[Drew Adams]

    C-x, d and then at the prompt, put in "*.html" 
    and get a wild card listing.

That works in GNU Emacs also.
    
    In GNU emacs, I have to do
    M-: and then (dired "*.html").

You shouldn't have to do that. Try emacs -q and see if it doesn't work.

Re: Dired and wild cards

[Tim Johnson]

On 2006-01-25, Drew Adams <drew.adams@oracle.com> wrote:
>     C-x, d and then at the prompt, put in "*.html" 
>     and get a wild card listing.
>
> That works in GNU Emacs also.
>     
>     In GNU emacs, I have to do
>     M-: and then (dired "*.html").
>
> You shouldn't have to do that. Try emacs -q and see if it doesn't work.

  You're right - works with -q switch. I'll check my init file
  and see what's clobbering it.

  Thanks
  tj

-- 
Tim Johnson <tim@johnsons-web.com>
      http://www.alaska-internet-solutions.com

Re: Dired and wild cards

[Tim Johnson]

On 2006-01-25, Drew Adams <drew.adams@oracle.com> wrote:
>     C-x, d and then at the prompt, put in "*.html" 
>     and get a wild card listing.
>
> That works in GNU Emacs also.
>     
>     In GNU emacs, I have to do
>     M-: and then (dired "*.html").
>
> You shouldn't have to do that. Try emacs -q and see if it doesn't work.

  FYI: Problem was not in .emacs, but in a major mode.
       The major mode has in invocation of (ffap-bindings).
	   Disabling that is the cure. Now I must research 'ffap.
	   tj

-- 
Tim Johnson <tim@johnsons-web.com>
      http://www.alaska-internet-solutions.com