Question

I’m in a red hat environment.
I need to move a file from server A to server B when a file is available in a folder F.

THere’s no constraint on the method used. Is it possible to trigger this event in python or any other scripts?

It could be run as a daemon but I’m not sure how to do that.

Any advices?

Answer 1

Very simple to implement in BASH and also in Python:
Here is my 2 Cent BASH example:

 triger=0
 while [ $triger -ne 1 ];  do sleep 3;  
       if [ -f NameOfFile ];
       then
       echo "FileFound";
       sh YourScriptToLaunch
       triger=1
       fi
 echo "sleeping ..."
 done

Run this in a shell, you’ll see the message sleeping every 3 seconds.
Then from another shell session to in the directory where you ran the script do “touch
NameOfFile” the script will break and try to launch the script YourScriptToLaunch.