From: "Peña, Botp" <botp@...>
Date: 2007-08-29T17:37:44+09:00
Subject: Re: Help parsing simple structured data.

From: Nuby Ruby [mailto:nubyruby@gmail.com] 
# of processing is the bit of code I use most in my daily life, and the
# hardest for me to wrap my head around when I play with new langauges.

you sound like an admin or you do admin tasks daily.

just want to tell you that there's a gem called ruport used for reporting task. ..just in case it may help you. 

this is just a simple example. i snipped the initial echos fr irb. the last outputs will give you an idea...

so,

>require 'rubygems'
>require 'ruport'

>data  =`df -h`.split "\n"
>header=data.shift.split " ",6
>data  = data.map{|line| line.split}
>report = Ruport::Data::Table.new :data => data, :column_names => header

>puts report
+-------------------------------------------------------------------------------+
| Filesystem | Size | Used | Avail | Use% |             Mounted on              |
+-------------------------------------------------------------------------------+
| /dev/hda1  | 3.8G | 3.1G | 566M  | 85%  | /                                   |
| varrun     | 125M | 68K  | 125M  | 1%   | /var/run                            |
| varlock    | 125M | 4.0K | 125M  | 1%   | /var/lock                           |
| udev       | 125M | 76K  | 125M  | 1%   | /dev                                |
| devshm     | 125M | 0    | 125M  | 0%   | /dev/shm                            |
| lrm        | 125M | 18M  | 107M  | 15%  | /lib/modules/2.6.15-28-686/volatile |
| /dev/hdb1  | 19G  | 6.9G | 13G   | 36%  | /disk2                              |
| /dev/hdd1  | 2.0G | 731M | 1.3G  | 37%  | /disk3-1                            |
| /dev/hdd2  | 2.1G | 65M  | 1.9G  | 4%   | /disk3-2                            |
+-------------------------------------------------------------------------------+
=> nil

> puts report.column("Filesystem")
/dev/hda1
varrun
varlock
udev
devshm
lrm
/dev/hdb1
/dev/hdd1
/dev/hdd2
=> nil

> puts report.column("Size")
3.8G
125M
125M
125M
125M
125M
19G
2.0G
2.1G
=> nil

there are a lot of fxns in ruport that allow you to sum on columns, swap them, remove/add columns, drill down on records, etc...

many thanks to GBrown and MMilner, et al for ruport.
kind regards -botp