nixCraft

Hello!

I am really new in shell scripting and knowing other languages as Java or C# I have been googling for an answer of the question I about to ask but I found no one. This is because I ask it here, .

My OS is Ubuntu 8.10 (Intrepid). Using Gnome.
GNU bash, version 3.2.39(1)-release (i486-pc-linux-gnu)

I am customizing the file bash.bashrc in order to feel the Gnome terminal a little bit more homely. My aim now, after have changed colors and added needless stuff is to make more dynamic the actual path:

As normal, when I am in my home folder I see:
[ ~ ] $ instead of [ /home/username ] $

That is fine, but I want to go further and abbreviate other folders, such as my workspace:
[ + ] $ instead of [ /home/username/drive/external/workspace ] $

I have found a pretty useful code for doing that:

I can not say that I understand everything, probably that is the main problem , but I know the comand "sed -e" and obviously "s!$HOME!~!" change the home folder for ~ in some way. But, it is case sensitive.

So, if I type "cd ~/drive/external/WorKsPACe", it does not work.

I have found some interesting functions which transform strings, for example:
But I guess the structure "s!$HOME/drive/external/workspace!+!" do not let me use it because it do not use variables for the substitution.

Do you know what can I do?

Thank you.

I'm sorry I do not understood your question. Do you want to change prompt settings?

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Vivek Gite
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Yes this is, I want to change my prompt for shorten some folders root, as the system does with the local user folder ( ~ ).

Try
Add it to your ~/.bashrc or ~/.bash_profile. No need to modify system scripts. Add all stuff to your personal to ~/.bashrc. Refer following for further details:

1. How to: Change / Setup bash custom prompt (PS1)

__________________
Vivek Gite
Linux Evangelist
Be proud RHEL user, and let the world know about your enterprise choices! Join RedHat user group.
Always use CODE tags for posting system output and commands!
Do you run a Linux? Let's face it, you need help

I am sorry for my awful explanations.

I already have the symbol "~" representing "/home/username", I want to add other symbols or abbreviations, for example, "+" for "~/drive/external/workspace" or "@" for "/var/www".

Thank you very much for answeringnixcraft.

I do not think so it is possible. Traditional programming languages such as C++ or QT toolkits have something called hooks or signal/slot. They can send signals containing event information and function can take action. But shell do not have such function to modify PS1 (there is now pwd signal) as you change directory to /var/www and add @ as prefix.

You may have to write a code in C or other real programming language to do so...

__________________
Vivek Gite
Linux Evangelist
Be proud RHEL user, and let the world know about your enterprise choices! Join RedHat user group.
Always use CODE tags for posting system output and commands!
Do you run a Linux? Let's face it, you need help