# HG changeset patch
# User huston@80426f53-59d1-405d-934b-f07cd76f4a1a
# Date 1251614950 0
# Node ID 94cfcec3b5b6c0428db981a615ad720ee16af370
# Parent  dacbbae5965ce165a01725c636af874559f5ea79
When bash is called non-interactively, PS1 is unset.  However, if it's a login
shell, ~/.bash_profile is still sourced.  Therefore, testing PS1 tells us if
this is a login but non-interactive shell (such as: ssh host 'uptime').
Testing PS1 before setting it preserves that state for later tests if desired.

diff -r dacbbae5965c -r 94cfcec3b5b6 .bashrc
--- a/.bashrc	Fri Aug 28 17:45:02 2009 +0000
+++ b/.bashrc	Sun Aug 30 06:49:10 2009 +0000
@@ -18,7 +18,7 @@
 #
 # Environment variables
 #
-export PS1='\h:\w\$ '
+[[ "$PS1" ]] && export PS1='\h:\w\$ '
 export PAGER=less
 export EDITOR=vim
 export RUBYLIB=$HOME/Installs/rubygems/lib