That is very different, the modern "Administrator" is more a or less a devop. He takes care about the deployment process of software. Also is it a very bride area. From Webadmin till Network Administartion is everything welcomed.
The nowadays admin has to be aware of everything! That means to know a lots but nothing to in deep. Sure it's a good deal to be just a sysadmin, but the jobs is changing. Cloud and Virtualization is the important knowledge you have to have. What the company's want to see is: I can do this! I have worked with it!.
But they also often far from the reality, they expect that you're 25 with 5-8 year of working experiences (at least in germany).
PS: Germany is often different from the rest of the world, so i can't say how it's for your country.
Bash is only a very small part of hosting or scripting, I would take a look at studying more options before taking the plunge. I say this only because candidates that I know of have a broad range of skills Bash being one of the more basic configuration skills.