Lets say you're talking about infosec and not a security guard. Does 100% of infosec people know about linux cli utilities? No certainly not. Flipside, are yo

Lets say you're talking about infosec and not a security guard. Does 100% of infosec people know about linux cli utilities? No certainly not. Flipside, are you his manager? HR? or something that even makes you care about his competence? Do you want him to get his linux+ certification or something? Why care if he knows anything?