Script A is launched by Task scheduler on windows.

Once script A is launched, it will write a 0 in to the args file, and parse the 0 to the script B, script B detects that it received an yes flag to go ahead and do whatever it wants to do.

else
if script B receives an argument of 1 and has already been executing then it should stop doing what ever it is doing and quit or if it is starting a fresh cycle to execute then it should stop and quit as it is

Basically i need something like a switch to stop the script B from executing again if it has been already executed once.
or if scriptB is in process of process of doing what it is supposed to then i want it to stop as it is at that point and exit out of the program.


Thanks to Vishal and VBE for their valuable suggestions

Venu