Diff terminal background on diff OS clones

Question

Hi
Maybe cryptic title, but I would like to have the following.
I have three osx snow clones on my system, because of testing my current developments.
They are most identical to each other and once a while when needed they are cloned using CCC ( CarbonCopyCloner ).
The differences between those clones are controlled afterwards with a script ( echelon.sh ) that make the changes I need.
But the changes in the terminal I would like to have is difficult to control.
First to recognize in which terminal on what clone I am working.
To start with, how can I change the background color of the terminal, depending of the clone partition name <;-)> easier to recognize the next mornig, when I am not yet awake </;-)>
Let say I have the following clones:
Chimera
Chimera_CL1
Chimera_CL3
and I want
Partition Name Background Color
Chimera white
Chimera_CL1 yellow
Chimera_CL3 lichtgreen
*My Question is:* +Is there a way in the ~/.bash_profile or ~/.profile to check from what partition ( name ) is started?+
Above is a sample to let me start from, but I also need some different aliases on the diff clones.
I could use three .bash_profile files and copy it with my current echelon.sh script at the right clone, but that means that I have to control more files instead of only one .bash_profil file.
My echelon.sh script is on each clone, but have knowledge where it did start from. It knows the current / path and partition name. So not really excitement.
Thanks in advance

Answer 1

Maybe not as powerful, but you could use a different Color prompt depending on which clone you are using.
if [[ $WHO = master ]]; then
# Black on Red "I am Master> " prompt
PS1="[e[30;41;1m]I am the Master> [e[0m]$"
elif [[ $WHO = clone1 ]]; then
# Blue on Cyan "Number One> " prompt
PS1="[e[46;34;1m]Number One> [e[0m]$"
elif [[ $WHO = clone2 ]]; then
# Magenta on Blue "I'm a Second Cousin> " prompt
PS1="[e[44;35m] 'm a Second Cousin > [e[0m]$"
fi
"WHO" is just a made-up variable you get to provide provide for testing.
Here is a color table:
# Prompt
# -foreground- ----bold---- -underline-- --reverse--- -background-
# black e[30m e[30;1m e[30;4m e[30;7m e[40;fg;1m
# red e[31m e[31;1m e[31;4m e[31;7m e[41;fg;1m
# green e[32m e[32;1m e[32;4m e[32;7m e[42;fg;1m
# yellow e[33m e[33;1m e[33;4m e[33;7m e[43;fg;1m
# blue e[34m e[34;1m e[34;4m e[34;7m e[44;fg;1m
# magenta e[35m e[35;1m e[35;4m e[35;7m e[45;fg;1m
# cyan e[36m e[36;1m e[36;4m e[36;7m e[46;fg;1m
# White e[37m e[37;1m e[37;4m e[37;7m e[47;fg;1m
# Reset e[0m
You can also change the title, but that is not as useful, but can be helpful if using multiple tabbed Terminal windows. Just add the following escape sequenct to your PS1 prompt:
[e]0;This Is My Tab Title ]