[clug] Two (perhaps simple) shell questions.

Mark Triggs mark at dishevelled.net
Tue Aug 18 03:47:34 MDT 2009

Andrew Janke <a.janke at gmail.com> writes:

> 1) I had a need (really) to remove every second newline from a file
> the other day and all I could think of was this:
>    $  awk 'ORS=NR%2?" ":"\n"' ...
> That is replace the newline with a space.  Is there a "better way"?.
> tr came to mind but I didn't get far.

I can't resist the Perl one-liner:

  perl -pe 'chomp if !($. % 2)' < myfile

Let the Perl golf begin :o)

Mark Triggs
<mark at dishevelled.net>

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