I have several servers, A, B, & C that run various routines then scp the results to server X. On X I then have to do some data manipulation with the received files before sending the files on to another location. Because of policy here I cannot pull the files from servers A, B & C, but have to allow them to initiate the transfer.
What I would like to be able to do is, on server X, monitor the receipt of the files from A,B & C via a script and when the transfer is complete kick off the data parsing routines that run on X.
Can someone tell me how to monitor the incoming scp sessions so that I can identify each one and tell when the transfer is complete for each of the servers?

Thanks
Thumper