Script help for copying

I want to use multiple whatsapp accounts
So normally i do use multile accounts by restoring the backup of whatsapp files from system and sd card ,
To switch account , i always have to restore them by file explorer .
Can yu tell me any script to copy them?
Or desktop shortcut to switch them?
Romtoolbox has desktop command wigdet.
I tried many ways but its not working.
The source
/sdcard/976/all bkcup whatsapl file
Destination /cache/system whatsapp files shorcuts at one place all files