Chapt 2 Intro to Server Logs video unexplained things

at 3:30 he types: /transition to PRIMARY and it then is displaying that log highlighted… how is this technique accomplished? what is the prompt?

at 3:44 he types: $ mongod -vvvvv
…no config file? has he just jumped to a new different daemon?? maybe it doesn’t matter if it was just to mention verbosity…

Nothing to do with mongodb. Look into the Linux vi text editor.

Why would you need a config file to startup a mongod? Minus the -v option, starting mongod without any options was the first thing discussed in M103 Basic Cluster
https://docs.mongodb.com/manual/reference/program/mongod/#cmdoption-mongod-verbose

NB: He’s going at speed because it’s an advanced course