what command must you type after exiting the unfamiliar editor?

You are attempting to edit your crontab file in the bash shell. Instead of getting your usual vi
interface, you are presented with an unfamiliar interface. In order to have your editor of choice-vi-what command must you type after exiting the unfamiliar editor?

A.
EDITOR=vi

B.
crontab=vi

C.
crontab � e vi

D.
env

Explanation:
Set the EDITOR variable to vi.
Commands like `crontab -e` will use ed per default. If you’d like to use some better editor (like vi)
you can use the environment variable EDITOR:
# EDITOR=vi; crontab -e
will open the users crontab in vi. Of course you can set this variable permanently.
Incorrect answers
C: -e Edits a copy of the current user’s crontab file, or creates an empty file to edit if crontab does
not exist. When editing is complete, the file is installed as the user’s crontab file. If a username is
given, the specified user’s crontab file is
edited, rather than the current user’s crontab file; this can only be done by a user with the
solaris.jobs.admin authorization. The environment variable EDITOR determines which editor is
invoked with the -e option. The default editor is ed(1). All crontab jobs should be submitted using
crontab. Do not add jobs by just editing the crontab file, because cron is not aware of changes
made this way.

Reference: Setting the default editor