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Ok. Thank you very much. Only one question more.

if I do following:

awk '$1 !~/[a-z]/ { next } 1 ' file_input | awk '$2>90 || $2 !~/^[0-9]/ { next } 1 | awk '$3 <-360 || $3>360 || $3...

Ok. Thanks, it is just what I needed . Can you explain to me the significance of "{ next } 1"?

Hello.

I've a file with 17 column. I need to filter this file. For example, if the data in column number 2, is smaller than 4, or it's a word, the programa must delete the line.

Input:

abc ...