gistfile1.sh

#!/bin/sh
unset GIT_DIR
cd .. 
git reset HEAD --hard
# kill the scheduler if running
pid=$(ps a | grep 'sched.rb' | grep -v 'grep' | cut -d ' ' -f 1)
if [ ! -z "$pid" ]; then
  # scheduler script running
  kill $pid
fi
# if no screen session exists create one.
if [ -z "$(screen -ls | grep 'rb-sched')" ]; then
  screen -dmS rb-sched
  # have to wait a bit otherwise the command will not be executed
  sleep 1
fi
# restart scheduler in screen session
screen -S rb-sched -X stuff "ruby sched.rb `echo '\015'`"