arnaud99
Check your script, the output indicated in your post is really different to what your code really shows. Below is the output of your script: 

7 hostname12 Generic-legacy 10000000AB210ACF6 ---
                             10000000AB210ACF4 2:5:4
                             10000000AB210ACF4 2:3:4
                             10000000AB210ACF6 3:5:4
9 hostname13 Generic        10000000AB2A3006A 3:5:2
                             5001438002A3004A ---
                             5001438002A30048 2:3:3
                             5001438002A30048 2:5:2
                             5001438002A30048 2:5:2
9 hostname13 Generic        10000000AB2A3006A 3:5:2
                             10000000AB2A30068 2:5:2
21 HOSTNAME   Generic

[download]
According, to the OP, 
9 hostname13 Generic        10000000AB2A3006A 3:5:2
                             10000000AB2A30068 2:5:2

[download]
Is not suppose to be shown in the final output. Your script even modified some info. like this: 
9 hostname13 Generic        10000000AB2A3006A 3:5:2
                             5001438002A3004A ---
                             5001438002A30048 2:3:3
                             5001438002A30048 2:5:2
                             5001438002A30048 2:5:2
9 hostname13 Generic        10000000AB2A3006A 3:5:2
                             10000000AB2A30068 2:5:2

[download]
The OP has only one "9 hostname13 Generic", so how did it become two, in the final output.

In reply to Re^2: Regex to extract certain lines only from command output/text file. by Anonymous Monk
in thread Regex to extract certain lines only from command output/text file. by perl514

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