Open the file you were editing before you were interrupted.
M-x recover-file <Enter> yes
If the file is locked, you will be asked to either:
s-Steal the lock
p-proceed despite lock
Choose s, and save the file.
Joel G Mathew, known in tech circles by the pseudonym Droidzone, is an opensource and programming enthusiast.
His favorite pastime is grappling with GNU compilers, discovering newer Linux secrets, writing scripts, hacking roms, and programs (nothing illegal), reading, blogging. and testing out the latest gadgets.
When away from the tech world, Dr Joel G. Mathew is a practising ENT Surgeon, busy with surgeries and clinical practise.