You will need to sudo or root privileges to install the following packages:

snmpd 
snmp

Once these have been installed you will get following command available

kmarquis@marquis:~$ snmp
snmp-bridge-mib  snmpconf         snmpget          snmpset          snmptranslate    snmpvacm
snmpbulkget      snmpd            snmpgetnext      snmpstatus       snmptrap         snmpwalk
snmpbulkwalk     snmpdelta        snmpinform       snmptable        snmptrapd        
snmpcheck        snmpdf           snmpnetstat      snmptest         snmpusm

Snmpwalk is useful command to collect information from network device with SNMP agents. Depending on what version of SNMP, you will need to use one of the following commands

SNMPv1⌗

snmpwalk -v1 -c{ community-name } ip_address

kmarquis@marquis:~$snmpwalk -v 1 -ctest-lab 10.1.0.201**
SNMPv2-MIB::sysDescr.0 = STRING: Juniper Networks, Inc. srx220h2 internet router, kernel JUNOS 12.1X44-D45.2 #0: 2015-01-12 14:20:16 UTC     builder@dagmath.juniper.net:/volume/build/junos/12.1/service/12.1X44-D45.2/obj-octeon/junos/bsd/kernels/JSRXNLE/kernel Build date: 2015-01-12 15:4
SNMPv2-MIB::sysObjectID.0 = OID: SNMPv2-SMI::enterprises.2636.1.1.1.2.58
DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (458062064) 53 days, 0:23:40.64
SNMPv2-MIB::sysContact.0 = STRING: Write a comment :D
SNMPv2-MIB::sysName.0 = STRING: This a test for snmpwalk example :p
SNMPv2-MIB::sysLocation.0 = STRING: The Lab in Space
SNMPv2-MIB::sysServices.0 = INTEGER: 4

SNMPv2⌗

snmpwalk -v2c -c{ community-name } ip_address

kmarquis@marquis:~$snmpwalk -v2c -ctest-lab 10.1.0.201**
SNMPv2-MIB::sysDescr.0 = STRING: Juniper Networks, Inc. srx220h2 internet router, kernel JUNOS 12.1X44-D45.2 #0: 2015-01-12 14:20:16 UTC     builder@dagmath.juniper.net:/volume/build/junos/12.1/service/12.1X44-D45.2/obj-octeon/junos/bsd/kernels/JSRXNLE/kernel Build date: 2015-01-12 15:4
SNMPv2-MIB::sysObjectID.0 = OID: SNMPv2-SMI::enterprises.2636.1.1.1.2.58
DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (458070509) 53 days, 0:25:05.09
SNMPv2-MIB::sysContact.0 = STRING: Write a comment :D
SNMPv2-MIB::sysName.0 = STRING: This a test for snmpwalk example :p
SNMPv2-MIB::sysLocation.0 = STRING: The Lab in Space
SNMPv2-MIB::sysServices.0 = INTEGER: 4

SNMPv3⌗

snmpwalk -v 3 -u { username } -l { noAuthNoPriv|authNoPriv|authPriv } -a { MD5|SHA } -A { authentication-password } -x { DES|AES } -X { privary-password } ip_address

kmarquis@marquis:~$snmpwalk -v3 -u test -l authPriv -a SHA -A test-lab -x AES -X test-lab 10.1.0.201**
SNMPv2-MIB::sysDescr.0 = STRING: Juniper Networks, Inc. srx220h2 internet router, kernel JUNOS 12.1X44-D45.2 #0: 2015-01-12 14:20:16 UTC     builder@dagmath.juniper.net:/volume/build/junos/12.1/service/12.1X44-D45.2/obj-octeon/junos/bsd/kernels/JSRXNLE/kernel Build date: 2015-01-12 15:4
SNMPv2-MIB::sysObjectID.0 = OID: SNMPv2-SMI::enterprises.2636.1.1.1.2.58
DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (458338855) 53 days, 1:09:48.55
SNMPv2-MIB::sysContact.0 = STRING: Write a comment :D
SNMPv2-MIB::sysName.0 = STRING: This a test for snmpwalk example :p
SNMPv2-MIB::sysLocation.0 = STRING: The Lab in Space
SNMPv2-MIB::sysServices.0 = INTEGER: 4
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