Fwd: Re: stability of column-widths in output from df, route etc

[Doug Clapp]

I'm a fan of awk.  Seems to me one awk would do what sed... | cut or tr 
...| cut would do - i.e. separate fields on one or more consecutive 
space characters and allow you to pick the field(s) you want.

Doug

-------- Original Message --------
Subject: 	Re: stability of column-widths in output from df, route etc
Date: 	Fri, 26 Nov 2010 15:32:42 +0100
From: 	walter harms <wharms at bfs.de>
Reply-To: 	wharms at bfs.de
To: 	Joakim Tjernlund <joakim.tjernlund at transmode.se>
CC: 	busybox at busybox.net



Am 26.11.2010 13:06, schrieb Joakim Tjernlund:
>>
>>  On Fri, Nov 26, 2010 at 11:00 AM, David Collier
>>  <from_busybox_maillist at dexdyne.com>  wrote:
>>>  I have some scripts which manipulate the output of route, and df, by
>>>  using cut -c8-12 or similar to extract the info I want.
>>>
>>>  How risky is this - what are the chances of someone making a column wider
>>>  or narrower in a future issue of busybox?
>>>
>>>  Is there a better technique?
>>
>>  Trim all whitespace to single spaces (sed 's/  */ /g'),
>>  then separate fields on the space char.
>
>  Yes, although it should probably be sed 's/ \+/ /g'
>

just because i am fan of "tr"
tr -s " "

re,
  wh
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