Adds some color to bash shell prompts :). Based on Arch's default .bashrc and .profile skel files.
Debian's skel files are long and scary, but well commented. Look for the following line in ~/.bashrc:
if [ "$color_prompt" = yes ]; then
PS1='${debian_chroot:+($debian_chroot)}<HERE!>'
else
OS X is a different beast altogether. On Mountain Lion and higher, you can place the following lines in ~/.bash_profile:
export PS1='\[\e[1;36m\]\u\[\e[0m\]@\[\e[1;32m\]\h \[\e[1;34m\]\w \[\e[0m\]\$ '
export CLICOLOR=1
Or, if you want a shell that looks closer to the default, use these:
export PS1='\[\e[1;32m\]\h\[\e[0m\]:\[\e[1;34m\]\w \[\e[1;36m\]\u\[\e[0m\]\$ '
export CLICOLOR=1