re = /(?sm)interface (\S*)(?:(?!^!$).)*port-security.*?!$/m
str = 'interface Vlan1
no ip address
shutdown
!
interface Vlan10
ip address 10.0.0.1 255.2555.255.0
no ip route-cache
!
interface Vlan20
no ip address
!
interface GigabitEthernet1/0/5
description PC-05
switchport access vlan 20
switchport mode access
switchport nonegotiate
shutdown
spanning-tree portfast
spanning-tree bpduguard enable
!
interface GigabitEthernet1/0/6
description PC-06
switchport access vlan 10
switchport mode access
switchport nonegotiate
switchport port-security maximum 2
switchport port-security aging time 2
switchport port-security violation restrict
switchport port-security mac-address aaaa.aaaa.aaaa vlan access
switchport port-security mac-address bbbb.bbbb.bbbb vlan access
spanning-tree portfast
spanning-tree bpduguard enable
!
end'
# Print the match result
str.scan(re) do |match|
puts match.to_s
end
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Ruby, please visit: http://ruby-doc.org/core-2.2.0/Regexp.html