shell script to lower process IO priority

#!/bin/sh

# this script scans the system for processes that do too much IO and changes their priority
# to keep them from bogging down the rest of the system

# iotop -o -qqq -k -n 2

iotop -o -qqq -k -n 2 | awk '{print $1 , $6}' > /run/io_process_list

#cat /run/io_process_list

#echo end cat

file="/run/io_process_list"

while IFS= read -r line; do

    kilobytes_used=$( echo "$line" | awk '{ print $2 }' | awk -F"." '{ print $1 }' )

    #echo kylobites used are $kilobytes_used

    if [ $kilobytes_used -gt 10000 ] ; then

    ionice -c3 -p$( echo "$line" | awk '{ print $1 }' )
    #echo "$line" | awk '{ print $1 }'

    fi

    #printf '%s\n' "$line"
done < "$file"

rm "$file"