rahulruns,
It is deleting all the lines with procs...

WHICH?, your actual code or the codes I presented in Re: Removing matched pattern except the first pattern.
Maybe, you need to check your data and how you implemented the code given.
The output of the code presented perviously is: 

procs -----------memory---------- ---swap-- -----io---- --system-- ---
+--cpu-----
 r  b   swpd   free   buff  cache   si   so    bi    bo   in   cs us s
+y id wa st
 0  0      0 50101200 234628 9636240    0    0     0    34 10782 6802 
+ 1  1 98  0  0
 1  0      0 50102044 234628 9636276    0    0     0    96 8630 6980  
+1  1 98  0  0
 1  0      0 50113020 234628 9626112    0    0     0  3092 13393 10324
+  3  1 96  0  0
 1  0      0 50111244 234628 9628188    0    0     0  1540 10106 8874 
+ 2  1 97  0  0
 0  0      0 50111256 234628 9628228    0    0     0     0 8674 6961  
+1  1 98  0  0
 0  0      0 50109884 234628 9628228    0    0     0   280 11290 7593 
+ 1  1 97  0  0
 0  0      0 50110672 234628 9628264    0    0     0    16 8886 7301  
+1  1 98  0  0
 1  0      0 50110708 234628 9628268    0    0     0    40 11285 6833 
+ 1  1 98  0  0
 0  0      0 50101200 234628 9636240    0    0     0    34 10782 6802 
+ 1  1 98  0  0
 1  0      0 50102044 234628 9636276    0    0     0    96 8630 6980  
+1  1 98  0  0
 1  0      0 50113020 234628 9626112    0    0     0  3092 13393 10324
+  3  1 96  0  0
 1  0      0 50111244 234628 9628188    0    0     0  1540 10106 8874 
+ 2  1 97  0  0
 0  0      0 50111256 234628 9628228    0    0     0     0 8674 6961  
+1  1 98  0  0
 0  0      0 50111256 234628 9628228    0    0     0     0 8674 6961  
+1  1 98  0  0
 0  0      0 50109884 234628 9628228    0    0     0   280 11290 7593 
+ 1  1 97  0  0
 0  0      0 50110672 234628 9628264    0    0     0    16 8886 7301  
+1  1 98  0  0
 1  0      0 50110708 234628 9628268    0    0     0    40 11285 6833 
+ 1  1 98  0  0

[download]
Please, try it yourself TIY.

If you tell me, I'll forget.
If you show me, I'll remember.
if you involve me, I'll understand.
--- Author unknown to me

In reply to Re^3: Removing matched pattern except the first pattern by 2teez
in thread Removing matched pattern except the first pattern by rahulruns

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