I have a file in following format
directory1=/out/log
purgedays1=4
extn1=log,out,txt
directory2=/clean/log
purgedays2=4
extn2=log,out

now i need need to create a script that reads this file and cleans all the files with the given extn from the given directory.
The catch here is that number of entries in the extn field may vary.
Please help!!