Parse CSV in bash and assign variables

Question

I have a csv of the format (Working on Bash on linux)

DN , MAC , Partition ,  

123 , abc , xyz  
321 , asd , asd 

I am able to parse it u

Answer 1

Try a loop:

while IFS=, read dn mac partition
do 
  echo "Do something with $dn   $mac and $partition"
done < file

---

To select a record you could use a case statement:

P2=123
while IFS=, read dn mac partition
do 
  case $dn in
    ($P2) echo echo "Do something with $dn   $mac and $partition" ;;
    (*)   echo "Do nothing" ;;
  esac
done < file