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Thanks a lot for such a detailed explanation Birei!

Thanks Birei,

Can you explain the code? I am still a rookie with awk :p

Hi,

I want to compare the columns of two files excluding column 2 from both the files. I tried this awk command.

awk -F":" 'NR==FNR{++a[$1,$3,$4];next} !(a[$1,$3,$4])' file1.txt file2.txt ...

I am running a grep query for searching a pattern, and the output is quite huge. I want only the last 200 lines to be displayed, and I am not sure if tail will do the trick (can tail read from std...