Need to write a auto save function for my tool

[krishna_25]

I already have a save function in my tool as like a normal tools. Now I would like to add auto save function , that has to save all the operation that made in the tool(we called that overlays). I need to write an auotsave function and I have to pass as command line arguments. Could some one will help you out. More detail: When I right to open my tool in Linux, mostly we used to pass like cd home/...../ and ToolName. I need to use the autosave function as command line arguments. for eg: I pass the argument as -s for autosave function when I try to pass like........ ToolName -s......... it has to save data or operation which is performed in my tool. looking for your valuable answers