Learn to use Awk with hundreds of examples

Re:Learn to use Awk with hundreds of examples by aseure on Wednesday October 25, 2017 @09:48AM (#15550065)

I would also recommend the good awk blog post series of Jonathan Palardy:

  * http://blog.jpalardy.com/posts/why-learn-awk/
  * http://blog.jpalardy.com/posts/awk-tutorial-part-1/
  * http://blog.jpalardy.com/posts/awk-tutorial-part-2/
  * http://blog.jpalardy.com/posts/awk-tutorial-part-3/

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Re:Learn to use Awk with hundreds of examples by asicsp on Wednesday October 25, 2017 @10:37AM (#15550460)

glanced a bit, looks good.. will add it to further reading section, thanks :)

has some minor issues though

> modern (i.e. Perl) regular expressions

nope, supports only ERE.. doesn't have non-greedy, lookarounds, etc

> $ cat netflix.tsv | awk '{printf "%s %15s %.1f\n", $1, $6, $5}' | sed 1d

could have just added NR>1 condition..

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Re:Learn to use Awk with hundreds of examples by matt_wulfeck on Wednesday October 25, 2017 @11:47AM (#15551093)

Yeah that’s really tough for me. PCRE really sets the bar for modern regular expression engines. Awk predates it by a decade.

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Re:Learn to use Awk with hundreds of examples by microtherion on Wednesday October 25, 2017 @03:22PM (#15553257)

TWO decades!

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Re:Learn to use Awk with hundreds of examples by kazinator on Wednesday October 25, 2017 @01:59PM (#15552414)

Not to mention that awk takes filename arguments, so this is an egregiously useless use of cat.

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Re:Learn to use Awk with hundreds of examples by twmb on Wednesday October 25, 2017 @03:17PM (#15553216)

From the second post,

> Alternatively, awk '{print $2}' netflix.tsv would have given us the same result. For this tutorial, I use cat to visually separate the input data from the AWK program itself. This also emphasizes that AWK can treat any input and not just existing files.

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Re:Learn to use Awk with hundreds of examples by nejenendn on Wednesday October 25, 2017 @03:19PM (#15553225)

Not to mention this is the point of the < operator.

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Re:Learn to use Awk with hundreds of examples by cannedslime on Wednesday October 25, 2017 @11:50AM (#15551126)

Thanks to you... and OP! I have been using posix systems for years but never really touched awk because what I have seen have seemed like archaic chants of dark magic, very good resources for learning about this nifty tool.

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