Re: finding directories based on files within?

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From	Spiros Bousbouras <spibou@gmail.com>
Newsgroups	comp.unix.shell
Subject	Re: finding directories based on files within?
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On Mon, 10 May 2021 22:13:50 +0000 (UTC)
Eli the Bearded <*@eli.users.panix.com> wrote:
> I currently have a simple shell script along the lines of:
> 
> 	find "$1" -type d \
> 		-exec test -f {}/SENTINEL-1 \; \
> 		-exec test -f {}/SENTINEL-2 \; \
> 		-print
> 
> The idea is to list directories that satisfy the condition of having two
> exactly named files within them. This code works, but it's not exactly
> fast (two execs for each matched directory), and it doesn't scale well:
> three files or has one but NOT the other, has either one of them, has
> sub-directories of particular names etc, all require rewriting the whole
> command.

Perhaps

    find "$1" -type d -printf '[ -f %p/SENTINEL-1 -a -f %p/SENTINEL-2 ] && echo %p\n' | sh

You would need to do minimal rewriting for the other uses you mention. But
it won't work if the file names may contain characters which are special
to the shell.

> The way I use this tool, it needs to examine both immediate
> subdirectories of "$1" and one level further.

I would need to see an example to be clear what this means.

Thread

finding directories based on files within? Eli the Bearded <*@eli.users.panix.com> - 2021-05-10 22:13 +0000
  Re: finding directories based on files within? Spiros Bousbouras <spibou@gmail.com> - 2021-05-13 02:38 +0000
  Re: finding directories based on files within? Martijn Dekker <martijn@inlv.demon.nl> - 2021-05-13 04:50 +0200
  Re: finding directories based on files within? Ed Morton <mortonspam@gmail.com> - 2021-05-13 07:20 -0500
    Re: finding directories based on files within? Ed Morton <mortonspam@gmail.com> - 2021-05-13 09:04 -0500
  Re: finding directories based on files within? Axel Reichert <mail@axel-reichert.de> - 2021-05-13 14:56 +0200
    Re: finding directories based on files within? Ed Morton <mortonspam@gmail.com> - 2021-05-13 08:44 -0500
      Re: finding directories based on files within? Axel Reichert <mail@axel-reichert.de> - 2021-05-13 21:09 +0200
  Re: finding directories based on files within? merlyn@stonehenge.com (Randal L. Schwartz) - 2021-05-13 07:31 -0700
    Re: finding directories based on files within? Eli the Bearded <*@eli.users.panix.com> - 2021-05-13 17:11 +0000
    Re: finding directories based on files within? Christian Weisgerber <naddy@mips.inka.de> - 2021-05-13 22:04 +0000
      Re: finding directories based on files within? merlyn@stonehenge.com (Randal L. Schwartz) - 2021-05-15 06:45 -0700
      find2perl (Was: finding directories based on files within?) gazelle@shell.xmission.com (Kenny McCormack) - 2021-05-15 17:32 +0000
        Re: find2perl Dan Espen <dan1espen@gmail.com> - 2021-05-15 13:46 -0400
        Re: find2perl (Was: finding directories based on files within?) Christian Weisgerber <naddy@mips.inka.de> - 2021-05-15 20:17 +0000
          Re: find2perl (Was: finding directories based on files within?) gazelle@shell.xmission.com (Kenny McCormack) - 2021-05-16 13:06 +0000
        Re: find2perl merlyn@stonehenge.com (Randal L. Schwartz) - 2021-05-15 15:34 -0700

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