Finds the id of the process that has the most open files.

maxer.sh

HIGHEST_PROCESS=''
HIGHEST_PROCESS_FILES=0
ps aux | awk 'NR > 1' | awk '{ print $2 }' > tmp.txt
while read -r process_element; do
	process_pid="$process_element"
	number_of_files=`lsof -p $process_pid | wc -l | awk '{ print $1 }'`
	if [ $number_of_files -gt $HIGHEST_PROCESS_FILES ]; then
		HIGHEST_PROCESS=$process_pid
		HIGHEST_PROCESS_FILES=$number_of_files
	fi
done < 'tmp.txt'
rm 'tmp.txt'
echo "pid with most open files $HIGHEST_PROCESS"
echo "number of open files $HIGHEST_PROCESS_FILES"
echo "information `ps -p $HIGHEST_PROCESS | awk 'NR > 1'`"