Can you please assit me with obtaining the "CPU states: 91.7% idle, 6.8% user, 0.7% kernel, 0.8% iowait, 0.0% swap" line from the top command? Looking at man for top didn't help. 
#!/usr/bin/perl
open PIPE, "/usr/local/bin/top -b -n 3 |" or die "Cannot open";
my $output = join '', <PIPE>;
close PIPE or die "Running top failed";
print "$output\n";
exit(0);

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The output looks like the below currently. 
load averages:  0.26,  0.24,  0.30    16:02:45
171 processes: 168 sleeping, 1 running, 1 zombie, 1 on cpu
 
Memory: 1024M real, 767M free, 92M swap in use, 1732M swap free
 
 
  PID USERNAME THR PRI NICE  SIZE   RES STATE   TIME    CPU COMMAND
 6451 pc2587     1  11    0  984K  704K sleep   0:26  5.36% br
 5983 dw3586     1  48    0  984K  704K sleep   1:19  0.35% br
 5962 dw3586     1  48    0  984K  704K sleep   1:39  0.35% br

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Edited by Arunbear: Changed title from 'PIPE', as per Monastery guidelines; and added code tags around output.

In reply to Obtaining data from the top command via a pipe by tc1364

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