Re: [PATCH] blkid: open device in nonblock mode.

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On Tue, Nov 12, 2019 at 11:27:28AM +0300, Anatoly Pugachev wrote:
> On Wed, Nov 6, 2019 at 11:52 AM Karel Zak <kzak@xxxxxxxxxx> wrote:
> >> On Wed, Nov 06, 2019 at 09:02:56AM +0100, Michal Suchánek wrote:
> > > > First off you need to explain it to all authors of all random scripts
> > > > out there.
> >
> > That's what I'm doing for years :)
> 
> considering lsblk / findmnt , how they are supposed to replace blkid
> in the following example (taken from os-prober):
> 
>                 output="$(blkid -o device -t LABEL="$1")" || return 1
> 
> i wasn't able to find lsblk alternative to match things (label, uuid,
> partition, whatever) - maybe i just don't carefully read manual page
> for it ? Of course it is possible to use grep in pipe after lsblk, but
> anyway.

Yes, it's UN*X :-) ... grep or so

    lsblk -rpo LABEL,NAME | awk '/'$1'/ { print $2 }'


 Karel

-- 
 Karel Zak  <kzak@xxxxxxxxxx>
 http://karelzak.blogspot.com





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