python - 用于网络接口(interface)选择的正则表达式

Question

我需要使用正则表达式单独查找接口(interface)的帮助。

!
interface Loopback0
 ip address 152.135.2.2 255.255.255.255
!
interface Port-channel1
 description *** 2 port Etherchannel to ic***
 switchport
 switchport mode trunk
!
interface FastEthernet1
 vrf forwarding mgmtVrf
 no ip address
 speed auto
 duplex auto
!
interface TenGigabitEthernet3/1
!
interface Vlan1
 no ip address
!
interface Vlan42
 ip address 10.2.2.3 255.255.255.240
 standby 42 ip 10.2.2.31
 standby 42 priority 105
 standby 42 preempt
!
interface GigabitEthernet6/48
 description ***connected to Panel***
 switchport access vlan 10
 switchport mode access
 spanning-tree portfast
!
interface GigabitEthernet7/1
!

我正在尝试使用以下语法，但是它显示了所有不匹配的接口(interface)信息

"^((?!Ten|Vlan|Loopback|Port).)*$"

我正在寻找以下结果。

interface FastEthernet1
interface GigabitEthernet6/4
interface GigabitEthernet7/1

Answer 1

如果您只需要 3 行:

interface FastEthernet1
interface GigabitEthernet6/4
interface GigabitEthernet7/1

然后您可以使用以下正则表达式:

^interface\s*(?=Fast|Giga).*

看看: https://regex101.com/r/qiqcl9/1