SNMP OUTPUT OPTIONS - How do I get the OID response value only?

可紊 提交于 2020-06-27 11:33:01

问题


I have to go through and collect a few OIDs from some SNMP enabled network printers with a BASH script I have been working on.

My Request:

snmpget -v2c -c public 192.168.0.77 
.1.3.6.1.2.1.1.1 
.1.3.6.1.2.1.1.2 

My Actual Response:

 .1.3.6.1.2.1.1.1 = Counter32: 1974 
 .1.3.6.1.2.1.1.2 = Counter32: 633940

The Desired Response:

1974
633940314

(just the oid values only)

I looked and tested several options using the resource from the site below:

http://www.netsnmp.org/docs/man/snmpcmd.html#lbAF

-Oq removes '=' so running

snmpget -v2c -c public -Oq 10.15.105.133
.1.3.6.1.2.1.1.1 
.1.3.6.1.2.1.1.2 

returns

.1.3.6.1.2.1.1.1 Counter32: 1974
.1.3.6.1.2.1.1.2 Counter 32: 633940314

so I know I am phrasing my request properly.

I am taking the values and writing them to a MYSQL dB, I set the data types in my tale schema, the request is consistent so I know the definition of the OID, so I do not need all the information I am getting back, just the value of the OID itself, so I can write it to my dB without manipulating the the response. I probably can manipulate the response pulling the information to the right of ":" and writing the value of the OID.

I am relatively new to SNMP (http://www.net-snmp.org/), but I can not see why this is not a more commonly asked question because I have been searching everywhere for an answer and this post is my last recourse...


回答1:


You can tune the output with the -O argument:

snmpgetnext -Oqv -v 2c -c public 192.168.0.77 .1
2

See the --help:

q:  quick print for easier parsing
v:  print values only (not OID = value)



回答2:


You can postprocess the output with a simple Awk or sed script, or even just grep (provided you have grep -P).

snmpget -v2c -c public 192.168.0.77 <<'____HERE' | awk '{ print $4 }'
.1.3.6.1.2.1.1.1 
.1.3.6.1.2.1.1.2
____HERE

or

.... | sed 's/.*: //'

or

.... | grep -oP ':\K[0-9]+'


来源:https://stackoverflow.com/questions/29386707/snmp-output-options-how-do-i-get-the-oid-response-value-only

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