Or is that more of a stereotype, and there are some (maybe more?) out there using some form of graphical interfaces/web dashboards/etc.?
It’s struck me as interesting how when you look up info about managing servers that they primarily go through command-line interfaces/terminals/etc. It’s made me wonder how much of that’s preference and how much of it’s an absence of graphical interfaces.
Using a command line interface is muche easier most of the time compared to a GUI. One of the reasons I can think of is that it’s easier to cram a lot of options inside of commands than it is to make an interface for them. You can have a look at nmap for instance, the menus inside the gui are clunky and fairly hard to read. Another advantage of the cli is that you can use it for scripting which is part of the basic skills of many sys admins. For a lot of treatments (like CSV files) it’s also much faster to pipe commands together than to go through Excel for instance. It can be intimidating at first but the man pages and sometimes a bit of internet research can go a long way.