[goatinaboat]

Or “a developer that does on-call”

I’m being facetious. Sysadmins always wrote scripts and developers always got called at home.

[emmelaich]

The best always did.

Many of the rest did, but not high quality scripts, and only in shell; not perl or python or tcl or ...

The lower rungs of sysadmin were happy to point and click on guis and lug and plug hardware.

[otabdeveloper4]

Yes, "DevOps" is basically an attempt to weed out the best sysadmins from the rest in the job market, because if you look for 'an experienced sysadmin' you'd usually find a guy who laid cables and replaced mice for 1000 Windows workstations instead of 10.