Log files. They're there for a reason -- to keep track of what goes on behind the velvet curtain of your operating system. When things go wrong, entries are added to those log files, so you can view ...

Sudo lets you run any terminal command as another user — hence "substitute user" — but the default and most common use for it ...

How to monitor a Linux log file in real time Your email has been sent This must-know Linux command will make troubleshooting considerably easier. Quick: What’s the first thing you do when you need to ...