I’m a retired programmer. A recent attempt at writing a Python script showed me that I have forgotten a LOT of the syntactic details. With that in mind, these are the langs that I have used professionally. “Know” might be an exaggeration at this point. HP basic Fortran C C++ C# Java Perl Python HTML (if that counts) Awk/sed
“Act like a dumb shit and they will treat you as an equal”. –J. R. Bob Dobbs