How can i parse more than 1 line from a show run with EEM

[edomatic007cisco]

Hi All,

Looking for someone that can help me figure this one out

I want to parse the output of the sh run int t0 command, i need to match 2 things in the output, one is the ip address of the tunnel destination and the other is the tunnel source interface name

I cant find a way to do this in one loop, the only way it works for me is by going through the loop 2 times , once for each line..

this is the tunnel 0 config i am parsing:

interface Tunnel0
ip address negotiated
ip tcp adjust-mss 1350
tunnel source GigabitEthernet0/1
tunnel destination 1.2.3.4

this is the eem applet that works but ..yeah..its stupid as i am basically creating the same twice to get the result i need so lots of excess lines to do this simple thing:

conf t
event manager applet test
event none
action 0001 cli command "enable"
action 0002 cli command "sh run int t0"
action 0003 foreach line "$_cli_result" "\n"
action 0004 set OUT "$line"
action 0005 regexp "(source)\s(.*)" "$OUT" match sub1 sub2
action 0006 if $_regexp_result eq 1
action 0007 puts nonewline "$sub2"
action 0008 end
action 0009 end
action 0011 cli command "enable"
action 0012 cli command "sh run int t0"
action 0013 foreach line "$_cli_result" "\n"
action 0014 set OUT "$line"
action 0015 regexp "(destination)\s([0-9]+\.[0-9]+\.[0-9]+\.[0-9]+)" "$OUT" match sub1 sub2
action 0016 if $_regexp_result eq 1
action 0017 puts nonewline "$sub2"
action 0018 end
action 0019 end
action 0020 exit
end
event manager run test

R1#event manager run test
FastEthernet0/0
1.2.3.4

So yeah it works, but i would like to shorten this if at all possible, now it requires almost 20 lines to accomplish it

[edomatic007cisco]

ok so i found one way to make it a little shorter:

event manager applet test
event none
action 0001 cli command "enable"
action 0002 cli command "sh run int t0"
action 0003 foreach line "$_cli_result" "\n"
action 0005 regexp "(source)\s(.*)" "$line" match sub1 sub2
action 0006 if $_regexp_result eq 1
action 0007 puts nonewline "$sub2"
action 0008 else
action 0009 regexp "(destination)\s([0-9]+\.[0-9]+\.[0-9]+\.[0-9]+)" "$line" match sub1 sub2
action 0010 if $_regexp_result eq 1
action 0011 puts nonewline "$sub2"
action 0012 end
action 0013 end
action 0014 end
exit
end

R1#event manager run test
FastEthernet0/0
1.2.3.4
R1#

is this the shortest possible or is there a better way to do it while still using eem applet?

[Dan Frey · Accepted solution]

Another option using 4 lines.

event manager applet tunnel
 event none
 action 010 cli command "enable"
 action 020 cli command "show run interface tunnel2"
 action 030 regexp "tunnel source ([a-zA-Z0-9\/]+).*tunnel destination ([0-9\.]+)" "$_cli_result" match intf ip
 action 040 puts "$intf $ip"
!
C1111#event manager run tunnel
GigabitEthernet0/0/1 10.64.1.202

C1111#

[edomatic007cisco]

Hey Daniel,

wow! thanks for this my friend!

I never considered the fact that the output of the sh run int tunnel command could be considered as one big string!

Many thanks for this a real eye opener for me