how to extract lines from a file using their linenumber on unix

Posted by monkeyking on Stack Overflow See other posts from Stack Overflow or by monkeyking
Published on 2010-01-06T23:06:03Z Indexed on 2010/03/17 19:31 UTC
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sed

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awk

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unix

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linenumber

Using sed or similar how would you extract lines from a file. Like if i wanted lines 1,5,1010,20503 from a file. How would you get these 4 lines.

What if I have a fairly large number of lines I need to extract. If I had a file with 100 lines each representing a linenr that I wanted to extract from another file. How would you do that.

thanks

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