Really useful shells.sh

# rename file's name:
  for f in *.eco;do base=${f/.eco/};mv $f $base;done

# Pretty mongodb output:
  db.collection.find().pretty()

# Pretty mongodb output by default:
  DBQuery.prototype._prettyShell = true
  to $HOME/.mongorc.js

# Generate ssh keys
  cd ~/.ssh
  ssh-keygen -t rsa -C "[email protected]"
  pbcopy < ~/.ssh/id_rsa.pub