exalted

# Simple
git filter-branch --prune-empty --subdirectory-filter foobar/ --tag-name-filter cat -- --all

# Complex
# (Ref.: http://stackoverflow.com/a/17867910/11895,
#        http://stackoverflow.com/a/19957874/11895)
git filter-branch -f --prune-empty --index-filter \
  'git rm --cached --ignore-unmatch -r -q -- . ; \
   git reset -q $GIT_COMMIT -- .gitignore README.md foo/ bar/' \
  -- --all

exalted

+--------------------------------------------------------------------+
|                                                                    |
|                          SELECT *                                  |
|                            FROM A                                  |
|                    [INNER] JOIN B ON A."FOO" = B."BAR" [AND ...];  |
|                                                                    |
+--------------------------------------------------------------------+
|                                                                    |
|                          SELECT *                                  |
|                            FROM A                                  |

exalted

#
# USAGE: `healthcheck <name> <URL>`
#

# Minify using http://bash-minifier.appspot.com
healthcheck() {
  GREEN='\033[0;32m'
  YELLOW='\033[0;33m'
  RED='\033[0;31m'
  COLOR_RESET='\033[0m'

exalted

Create SSH key

It's best having separate keys on different workstations (e.g., home, office, etc.).

Generate a public key:

ssh-keygen -t rsa -f ~/.ssh/heroku_rsa -C"$(whoami)@$(hostname)"`