Verification of file existence

Question

Hi 

 

Scenario : File abc.txt verification   

 

If file exists then call method1()

 

else 

 

verify the file location(C:\lfs\abc.txt) for every 10sec until the file is found and when the file is available, call the method1().

 

Since I'm beginner, done scripting for the file existence case but stuck at the verification of every 10sec. Any suggestions for this scenaio will be great

 

Thanks

Anusha