"language","example" "APL",""Hello world!"" "Bash","echo Hello world!" "Batch","echo Hello world!" "Julia","println ("Hello world!")" "MATLAB","disp "Hello world!"" "Perl","print "Hello world!\n"" "Python 2","print "Hello world!"" "Python 3","print ("Hello world!")" "R","print "Hello world!"" "Ruby","puts "Hello world!"" "TCL","puts "Hello world!""