Somehow I'm still writing things in Perl despite I've tried to "move on" to:

• C for faster code
  • and C++ because it's still portable across PCs and smartphones, but offers saner memory management
  • and Fortran because a lot of scientific code is already written in it and free-form 2008 does take away some of the worries about pointers
• R for science (also tried Python for data mining courses, but liked it less)
• Lua for embedding (It's a very sane language. It does things the simple way, and they work. I like it.)

I find Perl invaluable for Mojolicious and Test::More.