From owner-freebsd-questions  Thu Aug 13 01:36:21 1998
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Date: Thu, 13 Aug 1998 18:34:25 +1000
From: Sue Blake <sue@welearn.com.au>
To: Peihan Wang <peihanw@mx.cei.gov.cn>
Cc: freebsd-questions@FreeBSD.ORG, jgrosch@mooseriver.com,
        mhenry@white.ug.cs.usyd.edu.au
Subject: Re: Re: PS1 (command line prompt) in .profile
References: <Pine.BSF.3.96.980813152436.462A-100000@wph.bbs.edu.cn>
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In-Reply-To: <Pine.BSF.3.96.980813152436.462A-100000@wph.bbs.edu.cn>; from Peihan Wang on Thu, Aug 13, 1998 at 03:44:46PM +0800
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[moved to freebsd-questions where it should have started]

On Thu, Aug 13, 1998 at 03:44:46PM +0800, Peihan Wang wrote:
> >> 
> >> Hello , gurus !
> >> 
> >> I am using bash (version: 2.01) on my 2.2.6 box.
> >> I put the following line in my .profile:
> >> 
> >> PS1='`pwd`$ '
> >> 
> >> It works well in console mode, But after I start X
> >> it does not take any effect in xterm. By the way,
> >> I am using lesstif as my window manager. I do not
> >> know what to do :-(
> >>
> --------------------------- Josef's Answer --------------------
> >
> >Read your man page. Bash uses 2 init file, .bashrc and .bash_profile.
> >.bash_profile gets run when you first login. .bashrc get run for each
> >term that your account/process create. So in your .bash_profile you
> >would have the line 
> >
> >    export PS1='`pwd`$ '
> >
> >That should do it
> >
> --------------------------  Henry's Answer --------------------
> >
> >You need to give the -ls argument to xterm:
> >
> >xterm -ls
> >
> >This indicates that the shell in the xterm is a login shell,
> >and thus it will read your .profile.
> >
> ################################################################
> 
> Thank you very much !
> 
> I write the following trinket as a gift to all FreeBSD users.
> It is very primitive and everyone can modify it for his/her
> own purpose.
> 
> 
> // file name   : my-path-prompt.cc
> // last update : Aug/13/1998
> // author      : Peihan Wang <peihanw@usa.net> , <peihanw@mx.cei.gov.cn>
> 
> // This program is derived from pwd.
> // Sometimes when you set PS1='`pwd`$ ' in your .profile or .bashrc,
> // it is very annoying that while you were doing something
> // in a relatively deep directory the PATH prompt is so long
> // that cause your eyes dizzy.
> 
> // So, compile this program and put it in ~/bin/ and modify your
> // profile. (PS1='`my-path-prompt`$ ')
> 
> // You can modify the two consts as you wish
> // or you can add command line args to make it flexible.
> 
> #include <iostream.h>
> #include <unistd.h>
> #include <string.h>
> 
> const int PROMPT_MAX_LENTH = 25;
> const char * ADD_ON_STRING = "..|";
> 
> main ()
> {
>  char * current_path = NULL;
>  char * p = NULL;
> 
>  if ((p = getcwd(NULL, 0)) == NULL) {
>    cerr << "getcwd() error\n";
>    exit(-1);
>  }
> 
>  int path_lenth = strlen(p);
>  int add_on_lenth = strlen(ADD_ON_STRING);
>  char * trimed_path = NULL;
> 
>  current_path = new char [path_lenth + 1];
>  strcpy(current_path, p);
>  if (path_lenth <= PROMPT_MAX_LENTH) {
>    cout << current_path;
>  }
>  else {
>    trimed_path = new char [PROMPT_MAX_LENTH + 1];
>    strcpy(trimed_path, ADD_ON_STRING);
>    char * pp = current_path;
>    for (int i = 0;
> 	i < (path_lenth - PROMPT_MAX_LENTH + add_on_lenth);
> 	i++) {
>      pp ++;
>    }
>    strcat(trimed_path, pp);
>    cout << trimed_path;
>    delete trimed_path;
>  }
>  delete current_path;
>  return 0;
> }
> 


I don't speak C, and I don't understand why I would want a program to
do what .bashrc does. Is this better?


-- 

Regards,
        -*Sue*-


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