In this first assignment of the semester we simply want to familiarize
ourselves with command line tools. We start by learning how to personalize
our Linux configuration by editing the
.bashrc files in
~/. Aliases and manipulating the environment path allow us to run
commands from any directory on our machines.
Edit the environment path so a
hello worldcommand can be ran from any directory. Then create an alias by modifying the
.bash_profile. We then switch gears and learn some commonly used commands. Commands like
echo, etc. are powerful commands that we should know. Specifically we will work with a large data set of clinical EEGs and query for three cases:
Patient Names whose first names start with R and last names start with S who had an EEG in the date range 2010-13
EEG reports that contain the word ‘spike’. EEG reports that contain the word ‘seizure’. We then produce a histogram of the words in these reports.
For EEG reports that contain the word ‘spike’ produce a histogram of bi-grams.