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Re: Editing a piped in stream?

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On 2018-07-07 11:02, David Christensen wrote:
> On 07/06/18 09:17, Richard Owlett wrote:
>> Subject line is poorly phrased.
>> While working on a problem {solved by a different approach} I had:
>>     ls -l /dev/disk/by-label/ | cut -f 10,12 -d ' ' data.txt
>> I would then manually edit data.txt by replacing the space character 
>> between the two fields with a tab.
>> I suspect I should be able to do:
>>     ls -l /dev/disk/by-label/ | cut -f 10,12 -d ' ' | *something* > 
>> prettydata.txt
> What you want is a tool that can handle fields delimited by one or more 
> whitespace characters.  Regular expressions come to mind, but RTFM 
> cut(1) doesn't look promising:

> Perhaps awk(1) or sed(1) (?).

awk is indeed one alternative, it accepts multi-spaces between fields:
ls -l /dev/disk/by-label/ | awk '/total/{next};{print $9"\t"$11}' > 
prettydata.txt

Ideal would be a more focussed way of reading out the disk info, perhaps 
something with blkid or lsblk?

-- 
John

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Editing a piped in stream? Richard Owlett <rowlett@cloud85.net> - 2018-07-06 18:20 +0200
  Re: Editing a piped in stream? Michael Wagner <wagner_m_bremen@web.de> - 2018-07-06 18:50 +0200
    Re: Editing a piped in stream? Richard Owlett <rowlett@cloud85.net> - 2018-07-06 20:30 +0200
  Re: Editing a piped in stream? john doe <johndoe65534@mail.com> - 2018-07-06 19:10 +0200
  Re: Editing a piped in stream? David Christensen <dpchrist@holgerdanske.com> - 2018-07-07 04:10 +0200
    Re: Editing a piped in stream? John Crawley <john@bunsenlabs.org> - 2018-07-07 11:00 +0200
      Re: Editing a piped in stream? David Christensen <dpchrist@holgerdanske.com> - 2018-07-07 21:40 +0200
        Re: Editing a piped in stream? David Wright <deblis@lionunicorn.co.uk> - 2018-07-08 03:40 +0200
          Eureka;/ Re: Editing a piped in stream? Richard Owlett <rowlett@cloud85.net> - 2018-07-08 13:00 +0200
        Re: Editing a piped in stream? John Crawley <john@bunsenlabs.org> - 2018-07-08 03:40 +0200
          Re: Editing a piped in stream? john doe <johndoe65534@mail.com> - 2018-07-08 07:40 +0200
            Re: Editing a piped in stream? Andy Smith <andy@strugglers.net> - 2018-07-08 13:20 +0200
              Re: Editing a piped in stream? Richard Owlett <rowlett@cloud85.net> - 2018-07-08 15:20 +0200
                Re: Editing a piped in stream? Richard Owlett <rowlett@cloud85.net> - 2018-07-08 16:00 +0200
                Re: Editing a piped in stream? John Darrah <xyllyx@gmail.com> - 2018-07-08 18:50 +0200
                Re: Editing a piped in stream? mick crane <mick.crane@gmail.com> - 2018-07-10 14:20 +0200
                Re: Editing a piped in stream? Greg Wooledge <wooledg@eeg.ccf.org> - 2018-07-10 14:40 +0200
                Re: Editing a piped in stream? mick crane <mick.crane@gmail.com> - 2018-07-10 15:00 +0200
                Re: Editing a piped in stream? john doe <johndoe65534@mail.com> - 2018-07-10 15:30 +0200
              Re: Editing a piped in stream? mick crane <mick.crane@gmail.com> - 2018-07-10 14:50 +0200
            Re: Editing a piped in stream? Greg Wooledge <wooledg@eeg.ccf.org> - 2018-07-09 14:50 +0200
              Re: Nvidia drivers Matthew Crews <mattcrews@mattcrews.com> - 2018-07-09 15:20 +0200
                Re: Nvidia drivers Matthew Crews <mattcrews@mattcrews.com> - 2018-07-09 20:40 +0200
                Re: Nvidia drivers Boyan Penkov <boyan.penkov@gmail.com> - 2018-07-09 20:50 +0200

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