format a string with puts


#!/usr/bin/env ruby

puts "%s, %s!" % [ "Hello", "myValue" ]

1.	Display a Message
2.	Insert some output from a shell command
3.	Put two or more variables together with the + method:
4.	format based string interpolation
5.	Get the command line parameter
6.	Comparing Floating-Point Numbers
7.	Simple Arithmetic
8.	use parentheses
9.	Array on righthand side for multiple args
10.	%d for decimal integers
11.	hexadecimal integers
12.	uppercase hexadecimal integers
13.	octal integers string format
14.	full-length floating-point numbers
15.	force exponential notation
16.	exponential with uppercase E
17.	six significant digits
18.	Use %f or %e depending on magnitude
19.	Field width
20.	Float number Precision
21.	Field and precision combined
22.	Multiple arguments to be formatted

format a string with puts : puts « Language Basics « Ruby