Re: Extract "Last checked" from extX filesystem

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From	"Chris F.A. Johnson" <cfajohnson@gmail.com>
Newsgroups	comp.os.linux.misc
Subject	Re: Extract "Last checked" from extX filesystem
Date	Mon, 22 Apr 2013 18:11:07 -0400
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On 2013-04-22, Bit Twister wrote:
> On 22 Apr 2013 13:53:26 -0700, Vilmos Soti wrote:
>> Hello,
>>
>> I would like to extract the "Last checked" field from
>> extX filesystems.
>>
>> The trick is that I need it in a form something like
>> "seconds since epoch" so I can easily test it
>> programmatically for any length of time.
>>
>> Unfortunately, dumpe2fs returns the field in a human
>> readable form, and I would like to avoid to convert
>> it to seconds.
>>
>> Is there a way to accomplish it?
>
> You could try something like
>   set $(dumpe2fs -h /dev/sdb5 | grep 'Last checked')
>   shift 3
>   _date="$@"
>   _epoch=$(date --date="$date"  +%s)
>
>   echo "$_date is $_epoch"

 Or:

read -a x < <(sudo dumpe2fs -h /dev/sdb6 2>/dev/null | grep 'Last checked:')
echo "${x[@]:3}"

-- 
   Chris F.A. Johnson, <http://cfajohnson.com>
   Author:
   Pro Bash Programming: Scripting the GNU/Linux Shell (2009, Apress)
   Shell Scripting Recipes: A Problem-Solution Approach (2005, Apress)

Thread

Extract "Last checked" from extX filesystem Vilmos Soti <vilmos@soti.ca> - 2013-04-22 13:53 -0700
  Re: Extract "Last checked" from extX filesystem Bit Twister <BitTwister@mouse-potato.com> - 2013-04-22 21:53 +0000
    Re: Extract "Last checked" from extX filesystem "Chris F.A. Johnson" <cfajohnson@gmail.com> - 2013-04-22 18:11 -0400
      Re: Extract "Last checked" from extX filesystem Bit Twister <BitTwister@mouse-potato.com> - 2013-04-22 22:35 +0000
        Re: Extract "Last checked" from extX filesystem "Chris F.A. Johnson" <cfajohnson@gmail.com> - 2013-04-23 03:31 -0400
          Re: Extract "Last checked" from extX filesystem gazelle@shell.xmission.com (Kenny McCormack) - 2013-04-23 08:29 +0000
            Re: Extract "Last checked" from extX filesystem Bit Twister <BitTwister@mouse-potato.com> - 2013-04-23 12:19 +0000
          Re: Extract "Last checked" from extX filesystem Bit Twister <BitTwister@mouse-potato.com> - 2013-04-23 12:01 +0000
  Re: Extract "Last checked" from extX filesystem J G Miller <miller@yoyo.ORG> - 2013-04-22 21:55 +0000
    Re: Extract "Last checked" from extX filesystem Richard Kettlewell <rjk@greenend.org.uk> - 2013-04-23 18:55 +0100
      Re: Extract "Last checked" from extX filesystem J G Miller <miller@yoyo.ORG> - 2013-04-23 19:23 +0000
        Re: Extract "Last checked" from extX filesystem Robert Riches <spamtrap42@jacob21819.net> - 2013-04-24 04:18 +0000
        Re: Extract "Last checked" from extX filesystem Richard Kettlewell <rjk@greenend.org.uk> - 2013-04-24 08:53 +0100
  Re: Extract "Last checked" from extX filesystem Vilmos Soti <vilmos@soti.ca> - 2013-04-23 13:21 -0700
    Re: Extract "Last checked" from extX filesystem Bit Twister <BitTwister@mouse-potato.com> - 2013-04-23 21:25 +0000
  Re: Extract "Last checked" from extX filesystem Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-04-25 16:33 +0200

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