Go to back directory browsing after opening file in vim
You can use Ctrl-O to go back to the previous buffer.
You can go back to the last buffer using :b#
.
If you just opened a file, then it will bring you just back to the directory browsing.
Update: Since this answer happened to be accept as the correct answer and is thus on the top, I'd like to summarize a bit the answers, including the one by @romainl that imho is the correct one.
:Rex[plore]
: Return to Explorer (by @romainl) vimdoc.sourceforge:Explorer
: opens the Explorer, same as:E
(if no other command starting withE
is defined (see stackoverflow), or as:Ex
(see vim.wikia) (by @drug_user841417).:b#
: goes back to the "previously edited buffers". See vim.wikia:e#
orCtrl
-6
(orCtrl
-^
): goes back to the "previously edited file" (by @aman-jain). See vim.wikiaCtrl
-O
: jump back to the previous (older) location, not necessarily a buffer (by @Peyman). See vim.wikia