Background: It suddenly came to me that Mac is not only a programming machine, but rather a graphical sandbox whose operation is supposed to be intuitive. (This is day 2 of my attempt to use a Mac, as a long-time Windows user.)
Solution is simple:
Step 1: hold left-click on the (Mac)Vim symbol, and got to
Option and then
Show in Finder; this will bring us to where the executable file named as
MacVim is located;
Step 2: Create an "alias" for the
MacVim-executable. This essentially creates a shortcut that opens a
Step 3: DRAG the "short cut" to the Application folder, found as the left-panel of the Finder.
PS: a failed attempt was to
Duplicate the executable file, and drag it to the Application "folder" at the left panel of the finder; this ends up with essentially having two "installations" of Vim, of which will bring up two Vim icon if we open these two installations graphically. In short,
alias and DRAGing helps!
PPS: Many thanks to RedBug, for this helpful lesson on Automator. In return, I will select his answer as the programmable solution, yet keep my personal solution here, as a backup. (As of Fri Mar 18, 2016, 22:31, I am still looking forward to a modification of the AppleScript that will terminate the Terminal once having opened it to execute "mvim" command.)