iTerm spits out text every time I start a new session - why, and how to stop it?

Question

Whenever I start a new session with iTerm, it sends sudo su and PS1="[web stage | \d \t \w]:" to the terminal window. I'm think this is something that someone set up for me in iTerm a long time ago. It's very irritating and I want it to stop. :-)

I looked all over the settings/prefs in iTerm and can't find any sign of what could be doing it, nor the string sudo su or PS1= anywhere. (And yes, Profiles > Command > Send Text at Start is empty-- that was my first thought but nothing there.)

I am 99% sure this is something from iTerm and not bash because when I launch the Terminal app, I don't get this behavior.

Where would this be stored and how can I stop it?

-- EDIT to add details:

It's not "Send Text at Start."

This is happening only in iTerm, not Terminal. Here's my iTerm Preferences/Profiles screen:

And, here's my ~/.bash_profile file:

export EC2_HOME=~/.ec2
export PATH=$PATH:/bin:/usr/bin:EC2_HOME/bin:/usr/local/bin
export EC2_PRIVATE_KEY=pk-afv_db1.pem
export EC2_CERT=cert-afv_db1.pem

And my entire ~/.bashrc file:

alias myip=ifconfig | grep 'inet ' | grep -v 127.0.0.1 |
   cut -d\   -f2
export EDITOR="/usr/local/bin/mate -w"
export PATH=$PATH:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/X11/bin

Answer 1

Have you tried greping your home directory?

sudo grep -R 'PS1="' ~/

Or, if you're really getting frustrated-

sudo grep -R 'PS1="' /

Maybe redirect stdout of those bad boys to files so you don't have to run them over and over to work with the results.

Answer 2

Solved the problem. It's sort of an interface issue in iTerm, though it's a bit of an edge case.

It turns out there was stuff in the "send text at start" field. The first character in there was a newline (\n), so in the interface screen shot, the field looked empty. But when I clicked in there and pressed the down arrow, "sudo su" showed up (the first line of what was being sent).

Props to the developer, George Nachman, who pushed me in the right direction. I turned on the debugging log and found this:

 "Initial Text" = "\nsudo su\nPS1=\"[web stage | \\d \\t \\w]:\"\n"

So that was the clue I needed.

Thanks to everyone who puzzled over this with me...