Shell Programming and Scripting

# Start with clean file
> sequence.txt
while read line
do
# send '###' as a marker between series
    echo "###" >> sequence.txt 
    i=$(echo $line | cut -d ',' -f7)
    j=$(echo $line | cut -d ',' -f8)
    for k in $(seq $i $j);
    do
        echo $k >> sequence.txt 
    done
done < test.txt

< test.txt mapfile limits
for line in ${limits[*]};
do

while read line
do

awk -F, '{split ($8,a," "); for (i=$7;i<=a[1];i++) printf "%.0f\n",i}' test.txt