This is PackageKit looking for RPM binary packages that might have the command you need.
(Please CC this message yourself if it doesn't reach the list.)
-----Original Message-----
From: <users(a)lists.fedoraproject.org>
Sent: Tue, 14 May 2019 18:00:29 -0400 (EDT)
To: 3603060030(a)txt.att.net
Subject: why the long pause after bash "command not found"?
i'm finally annoyed enough about this to just ask ... on a regular
basis, i mistype a command and (predictably) get:
bash: xxx: command not found...
but, quite often
==================================================================
This mobile text message is brought to you by AT&T