I am currently a sysadmin and a college student. My degree is CompSci but I also have a Physics major. I recommend going to college; you learn a lot of ideas and principles that will get you in the door with those who count: managers. If you can write shell scripts to reduce wasted space by 50%, managers won't care unless you can demonstrate the idea to them on their terms. A cert will get you going in the short term, but as soon as your employer switches to MS, your CNE is dead. However, if you can use management and business principles you could convince them to switch to Unix, look smart and get promoted in one fell swoop. Bottom line: knowing stuff is good, knowing the lingo is better.
I am currently a sysadmin and a college student. My degree is CompSci but I also have a Physics major. I recommend going to college; you learn a lot of ideas and principles that will get you in the door with those who count: managers. If you can write shell scripts to reduce wasted space by 50%, managers won't care unless you can demonstrate the idea to them on their terms. A cert will get you going in the short term, but as soon as your employer switches to MS, your CNE is dead. However, if you can use management and business principles you could convince them to switch to Unix, look smart and get promoted in one fell swoop. Bottom line: knowing stuff is good, knowing the lingo is better.