irb(main):003:0> ipaddr=/[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}/ => /[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}/ irb(main):004:0> x=/local\s+IP\s+address\s+/ => /local\s+IP\s+address\s+/ irb(main):014:0> "local IP address 192.1…