shell script to get the arrival count of file

Shell Programming and Scripting
1

Hello All,

I have come across a small problem. It would be great if any of you could help me in resolving the issue.

one file named dummy.txt will be ftped to Unix machine twice daily. If i receive it second time in a day i need to do some processing with the file.

How to find the number of times it arrived to Unix box?

Please help me by giving some ideas?

Thanks

2

What do you mean?
If ftped twice a day, sure you will receive it a second time... or that is not what you ment...
Should we understand the file can be resent later independently of the 2 daily occurences?

3

Ad hoc (assumed you'll remove the processed file),

  • you may want to create and schedule (cron) a script, which
  • on a regular base checks for the file in question ('if -f file'),
  • stores it's details ('ls -l file') to a status file ('> status_one'),
  • if status_one exists, compares the current file's details to those stored,
  • if different, processes the current file and finally removes the status file.