This question already has an answer here:
Various editors like
gedit detect if the file is changed and asks to reload it. Sometimes in
vim when I got many files to edit, I sometimes end up opening same file in different tabs for quick look with other files and several other reasons.
So is there anyway I can force to reload the current file before I update anything to it.
I know one option is to exit and reopen it, but I have splitted the screen and I don't want to loose that view.