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Full Discussion: Script read highest value
Top Forums Shell Programming and Scripting Script read highest value Post 302653671 by dekker74 on Saturday 9th of June 2012 06:15:32 PM
Old 06-09-2012
Script read highest value

Hi All,

Can someone help steer me to the simplest approach to write a script that reads the second column of a csv file and returns the highest value.

example file:

DATE,QUANTITY
Mon Apr 30 01:56:00 2012,42
Mon Apr 30 02:24:00 2012,72
Mon Apr 30 02:56:00 2012,102
Mon Apr 30 02:59:00 2012,132
Mon Apr 30 03:31:00 2012,222
Mon Apr 30 03:38:00 2012,192

TIA
 

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Mon::SNMP(3pm)						User Contributed Perl Documentation					    Mon::SNMP(3pm)

NAME
Mon::SNMP - decode SNMP trap SYNOPSIS
use Mon::SNMP; $trap = new Mon::SNMP; $trap->buffer($snmptrap); %traphash = $trap->decode; $error = $trap->error; DESCRIPTION
Mon::SNMP provides methods to decode SNMP trap PDUs. It is based on Graham Barr's Convert::BER module, and its purpose is to provide SNMP trap handling to "mon". It is not complete, so don't bother trying to use it unless you are ready to debug and write some code. METHODS
new creates a new Mon::SNMP object. buffer ( buffer ) Assigns a raw SNMP trap message to the object. decode Decodes a SNMP trap message, and returns a hash of the variable assignments for the SNMP header and trap protocol data unit of the associated message. The hash consists of the following members: version => SNMP version(1) community => community string ent_OID => enterprise OID of originating agent agentaddr => IP address of originating agent generic_trap => /COLDSTART|WARMSTART|LINKDOWN|LINKUP|AUTHFAIL|EGPNEIGHBORLOSS|ENTERPRISESPECIFIC/ specific_trap => specific trap type (integer) timeticks => timeticks (integer) varbindlist => { oid1 => value, oid2 => value, ... } ERRORS
All methods return a hash with no elements upon errors which they detect, and the detail of the error is available from the EXAMPLES
use Mon::SNMP; $trap = new Mon::SNMP; $trap->buffer($snmptrap); %traphash = $trap->decode; foreach $oid (keys $traphash{"varbindlist"}) { $val = $traphash{"varbindlist"}{$oid}; print "oid($oid) = val($val) "; } ENVIRONMENT
None. SEE ALSO
Graham Barr's Convert::BER module. NOTES
CAVEATS
Mon::SNMP depends upon Convert::BER to do the real work. perl v5.14.2 2012-04-27 Mon::SNMP(3pm)
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