glazgo~> echo $PATH
/Users/taf2/.rvm/gems/ruby-1.9.2-p0/bin:/Users/taf2/.rvm/gems/ruby-1.9.2-p0@global/bin:/Users/taf2/.rvm/rubies/ruby-1.9.2-p0/bin:/Users/taf2/.rvm/bin:/Users/taf2/work/builds/bin:/usr/local/git/bin:/usr/local/bin:/opt/local/bin:/opt/local/sbin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/X11/bin
glazgo~> which awk
/usr/bin/awk
glazgo~> which grep
/usr/bin/grep
glazgo~>