Append one string to another with the + method:


puts "Hello, " + "Matz!"

1.	append a string with the << method:
2.	Concatenate (join) strings together, using a +
3.	Using the + symbol concatenates the two strings "
4.	inserting value of a variable in a string
5.	Push several strings into one
6.	Encode command in string

Append one string to another with the + method: : String Concatenation « String « Ruby