I have to create one csv file for 1st day of every month with two columns with headings Date and Count.

Another script runs daily and it finds the particular matched string of log entities in all log files and those log entities, count of those matched log entities count to be inserted into another file. I acheived this...

But now, I need to insert Date and Count into the csv file. Every day the csv file needs to be updated whenever the script runs.

Can you please show me how to i achieve this?