bundle install
export PUNCH_EMAIL='my@email.com'
export PUNCH_PASSWORD='mysecret'
# Might be a good idea if you'll work long on a project
export PUNCH_PROJECT='My Project'
FROM=2014-01-23 TO=2014-01-26 ./punch
You can also change the project per invocation:
PUNCH_PROJECT='Other Project' FROM=2014-01-23 TO=2014-01-26 ./punch