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Full Discussion: Using arguments
Top Forums Shell Programming and Scripting Using arguments Post 302569550 by jsoper1 on Monday 31st of October 2011 04:38:20 PM
Old 10-31-2011
Using arguments
I have a SNMP agent that sends three arguments to the script to get a value at the end. The first is the LeafNumber, second is the request type (SET, GET, GETNEXT), and the last is a string that represents some value to be set(used only for set requests).

The agent string looks like this:

Code:
extension 1 OctetString readonly /etc/motdpass.sh

So it makes the first agument variable(ARGV)=1
The second would be "GET" or "GETNEXT"

In the manual for the SNMP agent it gives a $ARGV[0,1, or 2] in their perl script example, but how would this look in a shell script? Would it just be $1, $2, or $3? This is what I have so far.

Code:
#!/bin/sh
# Shell script to pull primary ESA out of a file

FILENAME= /etc/motd

# Do work
extPrimEsa= grep "Primary ESA" $FILENAME|cut -d\= -f2

if [ $ARGV[0] -eq 1 ]; then 
	# OID queried is 1.3.6.1.4.1.546.14.1.0
	if [ $ARGV[1] = "GET" ]; then
	echo extPrimEsa
	fi
fi

I need to go through 8 different variables, but once I have this one down and working, I'll add the rest in. Am I doing this right?
 

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LEARN ABOUT X11R4

snmpgetnext

SNMPGETNEXT(1)							     Net-SNMP							    SNMPGETNEXT(1)

NAME

       snmpgetnext - communicates with a network entity using SNMP GETNEXT requests

SYNOPSIS

       snmpgetnext [COMMON OPTIONS] [-Cf] OID [OID]...

DESCRIPTION

       snmpget is an SNMP application that uses the SNMP GETNEXT request to query for information on a network entity.	One or more object identi-
       fiers (OIDs) may be given as arguments on the command line.  Each variable name is given in the format specified in variables(5).  For each
       one, the variable that is lexicographically "next" in the remote entity's MIB will be returned.

       For example:

       snmpgetnext -c public zeus interfaces.ifTable.ifEntry.ifType.1

       will retrieve the variable interfaces.ifTable.ifEntry.ifType.2:

       interfaces.ifTable.ifEntry.ifType.2 = softwareLoopback(24)

       If  the	network  entity  has  an  error processing the request packet, an error message will be shown, helping to pinpoint in what way the
       request was malformed.

OPTIONS

       snmpgetnext takes the common options described in the snmpcmd(1) manual page and also the -Cf option described  in  the	snmpget(1)  manual
       page.

SEE ALSO

       snmpcmd(1), snmpget(1), variables(5).

4th Berkeley Distribution					    08 Feb 2002 						    SNMPGETNEXT(1)
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