$ ruby -v ruby 1.8.7 (2008-08-11 patchlevel 72) [universal-darwin10.0] $ perl -v This is perl, v5.10.0 built for darwin-thread-multi-2level $ python -V Python 2.6.1 $ php -v PHP 5.3.0 (cli) (built: Jul 19 2009 00:34:29) $ javac -version javac 1.6.0_15 $ gcc -v gcc version 4.2.1 (Apple Inc. build 5646) $ bash --version GNU bash, version 3.2.48(1)-release (x86_64-apple-darwin10.0) $ tcsh --version t