"How to open a new tab in vim ?
:tabnew
:tabedit
:tabnew or :tabedit alone will open a new tab with empty buffer
:tabnew filename or tabedit filename will load the file in new tab
How to open files in separate tabs at start-up?
The following will open the 4 files in 4 separate tabs.
$ vim -p file1 file2 file3 file4"