From: "(rkumar) Sentinel" <sentinel.2001@...>
Date: 2009-12-23T13:34:02+09:00
Subject: Re: awk print $4 in ruby

Derek Smith wrote:
> Hi All,
> 
> I had played in Ruby a while and could not get this to work.
> 
> df -m
> Filesystem             1M-blocks Used Avail Capacity  Mounted on
> /dev/concat/v109-v112a      7931 2619  4677    36%    /
> 
> [root@vr /usr/local/vrep/OS_scripts]# df -k |awk '{print $4}'
> Avail
> 4789776

Is this what you want ?

     df -k | ruby -lane 'print $F[3]'
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