Your mileage will vary. In my life working for "the man" as a sysadmin or developer type in Mountain View, it broke out like this:

Shell scripts: a little bit here and there. Mostly for my own shortcuts to save time doing repetitive stuff.

Perl, PHP, Ruby, Chef/Puppet, Haskell: Zero.

Javascript: Only if cargo-culting a "make this table sortable" thing into a web page counts.

Java: Just that one time, to help out some folks who were on vacation when their service broke.

SQL: Unfortunately, more than I like to admit. Almost always used in conjunction with...

Python: Far more than I liked. One service was nothing but Python code written with a typical scripter mentality. Pain.

C: Rarely, like a one-afternoon tool we used just once.

C++: Constantly. So many things were and are written in it.

I must say that lumping C and C++ together is worrisome. Odds are, you're not going to use them the same way.