[Insight-developers] Bash shell prompt customization

[Bill Lorensen]

Folks,

I'm sure the experts already know this, but if you are using the bash
shell, you can customize the prompt to show which git branch is
active.

Here is what I added to my ~/.bashrc file:

parse_git_branch()
  {
  git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/(\1)/'
  }
export PS1="[\[\e[01;34m\]\W\[\e[31m\]\$(parse_git_branch)\[\e[00m\]]\[\e[00m\]
"

It shows up like this:
[ITKPersonal(gdcmWarnings)]  (with colors!)

There is a lot more you can add to the prompt (like username, host,
etc), but I like to keep mine short,

Bill