How to find out which terminal app (iTerm or Terminal) is running from within bash I need to have different color schemes for each of the two terminal types I use. I can set it in the .bash_profile as mentioned here. But how can I tell it to differ depending whether its a iTerm2 or default terminal instance?
There is an environment variable set by iTerm and by Terminal as the following:

for Terminal:

TERM_PROGRAM=Apple_Terminal


for iTerm:

TERM_PROGRAM=iTerm.app


You should see this variable by typing in env from the command line.

So - using this variable, you can put a condition in your .bash_profile file to select the proper coloring.