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  • good solution , but I prefer to update the file itself like "sed -i" and not copy the file to the source file for update , is it possible with awk ? Commented Aug 5, 2018 at 17:43
  • @yael A standard redirection and mv. See updated answer. Not even GNU awk has an in-place editing option. It's not something that awk program usually do. Commented Aug 5, 2018 at 17:45
  • 1
    GNU awk has it... Commented Aug 5, 2018 at 18:00
  • @don_crissti :-) That's an extension, even to GNU awk. Commented Aug 5, 2018 at 18:03
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    Sure but that doesn't change the fact that it exists... Anyway, +1 for answering the actual question here... Commented Aug 5, 2018 at 18:22