From: Hal Fulton <hal9000@...>
Date: 2006-01-05T04:03:37+09:00
Subject: Re: Searching a file for keywords?

Steve Starr wrote:
> I am trying to find out how to search a file and find certain key words 
> then print them.
> 
> Example:
> 
> #!/usr/bin/ruby
> 
> system("cat /proc/partitions > drives.txt")
> 
> 
> Output:
>    8     0    1007616 sda
>    8     1    1007600 sda1
>    3     0   33027622 hda
>    3     1   14651248 hda1
>    3     2   14651280 hda2
>    3     3    3719047 hda3
> 
> Now i would just want to print the word hda to the screen.

Here's a first stab at it:

   str = `whatever_command`
   arr = str.split(" ")
   puts arr.grep(/hda[^0-9]/)

Assuming you just want that word and not the whole line.
Also assuming other things.


Hal