Bash script to reformat MSFT 2013 intern data to a cleaner csv format

interns.sh

#!/bin/bash
# Usage:  ./interns.sh interns.txt

# loop over all lines of the file
while read line
do
    # ignore blank lines
	if [ "$line" == "" ]
	then
		continue
	fi

	# Try to extract start date
	isdate=$(sed -n -e '/\w\+ [0-9]\+/p' <<< "$line")
	if [ "$isdate" != "" ]
	then
		date=$isdate
		continue
	fi
	# Extract line data
	name=$(sed -n -e 's/\(\w\+\)\s*(.*/\1/p' <<< "$line")
	data=$(sed -n -e 's/[^(]*(\(.*\))/\1/p' <<< "$line")
	# Print csv data with prepended start date
	printf "%s, %s, %s\n" "$name" "$date" "$data"
done < $1