From: Derek Smith <derekbellnersmith@...>
Date: 2009-12-31T05:10:52+09:00
Subject: Re: awk print $4 in ruby, NEW QUESTION?

>Rob Biedenharn wrote:
>Rob@AgileConsultingLLC.com

Hi again,

Thank you Rob, quite the explanation!
I did exactly as you said and it seems my loop is not even running:


[root@vir/usr/local/vrep/OS_scripts]# ruby filesys_chk.rb /
entering to_s
#<FsData:0x8114088 @capacity=nil, @available=nil, @used=nil, 
@filesystem="/", @rawdisk=nil>

class FsData
    def initialize(filesystem)
        @rawdisk = @used = @available = @capacity = nil
        @filesystem = filesystem

        if ARGV.empty?
            $stderr.puts "An argument of filesystem is required to run 
this script, bye!"
            exit 1
        end
    end

    def rundf
        puts "in dfrun method"
        df = %x(df -m |tail +2)
        df.each do |ln|
            df_fields = ln.chomp.split
            next unless df_fields.last == @filesystem

            @rawdisk    = df_fields[1]
            @used       = df_fields[2]
            @available  = df_fields[3]
            @capacity   = df_fields[4]
        end
    end

    puts "entering to_s"
    def to_s
       puts "in to_s method"
       str =  "#{@filesystem} :"
       str << " raw #{@rawdisk}"         if @rawdisk
       str << " used #{@used}"           if @used
       str << " available #{@available}" if @available
       str << " capacity #{@capacity}"   if @capacity
       if @available <= 4557
           puts "YESSSSSSSSSSSSSSSSSSSSS!!!!!!!!!!"
       end
    end
end

p FsData.new(ARGV[0])

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