Re: question regarding post-installed packages

From	Andrei POPESCU <andreimpopescu@gmail.com>
Newsgroups	linux.debian.user
Subject	Re: question regarding post-installed packages
Date	2021-06-23 14:50 +0200
Message-ID	<Ctaul-6qF-3@gated-at.bofh.it> (permalink)
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On Mi, 23 iun 21, 09:22:24, tomas@tuxteam.de wrote:
> On Wed, Jun 23, 2021 at 06:51:39AM +0300, Andrei POPESCU wrote:
> 
> [...]
> 
> > 	comm -23 <(apt-mark showmanual | sort -u) <(gzip -dc /var/log/installer/initial-status.gz | sed -n 's/^Package: //p' | sort -u)
> 
> > Command substitution without '$'? I must be missing something and would 
> > appreciate a pointer.
> 
> As David pointed out (as a pointer), the <(...) is a bashism for "pretend this is
> a file name whose content is provided by the enclosed command's output".
> 
> Perhaps more readable in the symmetrical variant
> 
>   diff -u <(ls dir1) <(ls dir2)
> 
> Very handy.

It certainly appears to be very handy, though I generally try to steer 
away from bashims in scripts, and for interactive use my primary shell 
is now fish.

Kind regards,
Andrei
-- 
http://wiki.debian.org/FAQsFromDebianUser

Thread

question regarding post-installed packages Christian <abelschreck3@freenet.de> - 2021-06-22 15:40 +0200
  Re: question regarding post-installed packages Hans <hans.ullrich@loop.de> - 2021-06-22 16:00 +0200
    Re: question regarding post-installed packages Christian <abelschreck3@freenet.de> - 2021-06-22 16:20 +0200
      Re: question regarding post-installed packages Hans <hans.ullrich@loop.de> - 2021-06-22 16:40 +0200
        Re: question regarding post-installed packages Christian <abelschreck3@freenet.de> - 2021-06-22 17:10 +0200
  Re: question regarding post-installed packages Andrei POPESCU <andreimpopescu@gmail.com> - 2021-06-22 16:50 +0200
    Re: question regarding post-installed packages Greg Wooledge <greg@wooledge.org> - 2021-06-22 17:10 +0200
      Re: question regarding post-installed packages Andrei POPESCU <andreimpopescu@gmail.com> - 2021-06-23 06:00 +0200
        Re: question regarding post-installed packages David <bouncingcats@gmail.com> - 2021-06-23 09:10 +0200
          Re: question regarding post-installed packages Andrei POPESCU <andreimpopescu@gmail.com> - 2021-06-23 14:50 +0200
        Re: question regarding post-installed packages <tomas@tuxteam.de> - 2021-06-23 09:30 +0200
          Re: question regarding post-installed packages <tomas@tuxteam.de> - 2021-06-23 10:10 +0200
          Re: question regarding post-installed packages Andrei POPESCU <andreimpopescu@gmail.com> - 2021-06-23 14:50 +0200
          Re: question regarding post-installed packages David Wright <deblis@lionunicorn.co.uk> - 2021-06-23 17:00 +0200
    Re: question regarding post-installed packages Christian <abelschreck3@freenet.de> - 2021-06-22 17:10 +0200
      Re: question regarding post-installed packages Greg Wooledge <greg@wooledge.org> - 2021-06-22 17:40 +0200
        Re: question regarding post-installed packages Andrei POPESCU <andreimpopescu@gmail.com> - 2021-06-23 05:40 +0200

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