Hi
Struggling a bit with regular expressions and hopefully someone can help.
Parsing some Cisco CDP output and my string equals below:
$cdp = "Device-ID (0x01), length: 44 bytes: 'my-switch-name'
Address (0x02), length: 13 bytes: IPv4 (1) 10.1.1.10
Port-ID (0x03), length: 16 bytes: 'Ethernet101/1/20'
Capability (0x04), length: 4 bytes: (0x00000228): L2 Switch, IGMP snoo
+ping
Version String (0x05), length: 66 bytes:
  Cisco Nexus Operating System (NX-OS) Software, Version 5.2(1)N1(3)
Platform (0x06), length: 11 bytes: 'N5K-C5596UP'
Native VLAN ID (0x0a), length: 2 bytes: 911
AVVID trust bitmap (0x12), length: 1 byte: 0x00
AVVID untrusted ports CoS (0x13), length: 1 byte: 0x00
Duplex (0x0b), length: 1 byte: full
MTU (0x11), length: 4 bytes: 1500 bytes
System Name (0x14), length: 11 bytes: 'my-switch-name'
System Object ID (not decoded) (0x15), length: 14 bytes:
  0x0000:  060c 2b06 0104 0109 0c03 0103 880e
Management Addresses (0x16), length: 13 bytes: IPv4 (1) 10.151.69.11
Physical Location (0x17), length: 13 bytes: 0x00/snmplocation"

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If using ksh and awk something like this would work:
VLAN=`echo $cdp | awk '/0x0a/ { print $8 }'`

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And set VLAN to 911. But I just cannot see how to do it with Perl even though it is almost certainly ridiculously straight forward. my @switch = ( $cdp =~  m/0x01/ ); Isn't working and any assistance gratefully received.

In reply to Regular expression assistance by agentorange

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