This is the csh version of the "set -o vi" in bash...
bindkey -v
I'm don't think any of this stuff will be interesting to anyone else, but it's just a place for me to write down things I want to remember. :-)
Search for a filename in GitHub (all repos in an account or a single repo) with:
filename:user.rb
Add the following to the vimdiff command line...
-c 'set diffopt+=iwhite'