Gnu screen trick to launch ipython notebook within screen session non interactively

launch-ipython-notebook-in-screen.sh

#!/bin/sh

# set -x
# set -e

sessionname=ipython-notebook

if screen -list | grep $sessionname ; then
	echo "Screen session $sessionname is already running."
	echo "not doing anything"

else
	echo "Starting iPython notenbook in screen session '$sessionname'"

	# A bit of explanation:
	# -dm: start screen in "detached" mode
	# -S: give the session a name
	# bash -c 'source ....': launch a bash shell and source virtual enviroment settings before launching ipython

	# Now, pick one of the following options:

		### Use standard/system wide iPython notebook
		screen -dm -S $sessionname ipython notebook

		### Use iPython from a virtualenv.
		# screen -dm -S $sessionname bash -c 'source virtualenv/bin/activate; ipython notebook'

		### Use iPython form Anaconda environment
		# screen -dm -S $sessionname bash -c 'source activate ipython2; ipython notebook'

	echo "iPython Notebook should be running now, have fun!"
fi

echo "Reattach to the screen session (e.g. to shut down) with:"
echo "    screen -r $sessionname"