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how to read log and display in csv file using perl

Posted by jeetu (jeetu), 20 May 2008
Can any one help me writting a program to read log and display in csv file using perl.

Following is the Data of Log file.

avg-cpu:  %user   %nice %system %iowait  %steal   %idle
          4.61    0.00    0.31    0.34    0.00   94.75

Device:            tps   Blk_read/s   Blk_wrtn/s   Blk_read   Blk_wrtn
sda               4.26       100.09        77.30     336740     260084
dm-0             12.09        98.94        77.30     332898     260080
dm-1              0.03         0.27         0.00        896          0

top - 12:30:45 up 56 min,  1 user,  load average: 0.04, 0.01, 0.09
Tasks: 110 total,   1 running, 109 sleeping,   0 stopped,   0 zombie
Cpu(s):  4.6%us,  0.3%sy,  0.0%ni, 94.7%id,  0.3%wa,  0.0%hi,  0.0%si,  0.0%st
Mem:    775016k total,   422808k used,   352208k free,    26012k buffers
Swap:  1572856k total,        0k used,  1572856k free,   160152k cached

 PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND                                                                                        

Want to write the CSV with following values from the log file.

Device:Blk_read/s   Blk_wrtn/s  
time, load average,
Tasks: total, running, sleeping, stopped,  
Cpu(s):  us,  sy, id,  wa,  
Mem:  total, used,  free,
Swap:  total, used,  free,  cached

Posted by KevinAD (KevinAD), 20 May 2008
What have you tried so far? Do you know any perl?

Posted by KevinAD (KevinAD), 27 May 2008
Iguess the answer is nothing and no.

Posted by zamanfou (zamanfou), 28 May 2008
Very simple.
You can do it in many different ways..

1. dump the data into a variable.
   clear the data from useless info.
   go str8 to regexp stuff.

example: if ($data =~ /(Tasks:.*?sleeping)/) {
                   $tasks = $1
Well, if you dont know any perl, just forget it.
You better learn the basics.

Posted by jeetu (jeetu), 28 May 2008
well i was able to do it in PHP... it was quite easy....

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