I'm a Linux programmer, self-taught (thanks Google and Wikipedia!), working in a games company using the Go language.
I can code the hell out of things in Bash (+friends), where Perl would normally be the tool of choice. I try to use built-ins as much as possible before resorting to sed, awk, etc. Wish Bash would have multidimensional arrays.
I love Python. If I need speed, I write C. I try to avoid C++ where possible. I'd rather run Python code with Pypy if I need speed. I love Pypy :)
I have tons of scattered experience with other languages and platforms. So much, that I'd fill in a screen with enumerations only, if I were to list everything.