briefly vs shortly

briefly and shortly both are adverbs.

Word	Noun	Adjective	Verb	Adverb
briefly	No	No	No	Yes
shortly	No	No	No	Yes

As adverbs, briefly and shortly are synonyms defined as:

Other synonyms of briefly include concisely, in brief, in short.

briefly (adverb)	shortly (adverb)
for a short time	in the near future
in a concise manner; in a few words	for a short time
	in a curt, abrupt and discourteous manner
	at a short distance
	in a concise manner; in a few words