Hi Monks ,

I need to process the output of a command which is in the format of a table. Depending on specified counter information , i need to extract entries corresponding to that counter.

An output instance is mentioned below : 

Timestamp       10.72.184.159:cpu_busy
--------------------------------------------------
2010-01-05 22:49:03     1.707
2010-01-05 22:50:04     1.753
2010-01-05 22:51:03     1.994
2010-01-05 22:52:03     1.726
2010-01-05 22:53:03     1.783
2010-01-05 22:54:03     1.733
2010-01-05 22:55:03     1.742
2010-01-05 22:56:03     1.902
2010-01-05 22:57:03     1.902

Timestamp       10.72.184.159:disk_data_written
-----------------------------------------------------
2010-01-05 22:49:03     47.467
2010-01-05 22:50:04     43.148
2010-01-05 22:51:03     47.186
2010-01-05 22:52:03     45.867
2010-01-05 22:53:03     47.333
2010-01-05 22:54:03     47.067
2010-01-05 22:55:03     42.400
2010-01-05 22:56:03     46.533

Timestamp       10.72.184.159:disk_data_read
---------------------------------------------------------
2010-01-05 22:49:03     13.467
2010-01-05 22:50:04     10.557
2010-01-05 22:51:03     10.712
2010-01-05 22:52:03     10.733
2010-01-05 22:53:03     10.667
2010-01-05 22:54:03     12.667
2010-01-05 22:55:03     10.133
2010-01-05 22:56:03     10.000
2010-01-05 22:57:03     10.133

[download]

To extract the data with respect to the counter "10.72.184.159:disk_data_written" , i have written the following code where $cmd_out contains the output in a string: 

my @out_arr = split (/\n/,$cmd_out);

my @ts_arr;
my $switch = 0;

foreach (@out_arr){

        if (/.*?10.72.184.159:disk_data_written.*/){

                $switch = 1;
        }
        if(($switch == 1) && ($_ !~ /^\s*$/)){

                push @ts_arr,$_;

        }
        if(($switch == 1) && (/^\s*$/)){

                last;
        }

}

print "\n The timestamp array consists of : \n";

print @ts_arr;

[download]

Is there a more optimized way to achieve the same ? Thanks in advance.

In reply to Optimum method to perform data extraction in a table by perlpal

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