From: Josh Cheek <josh.cheek@...>
Date: 2011-07-27T22:48:05+09:00
Subject: Re: String manuplation example

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On Wed, Jul 27, 2011 at 8:26 AM, kotin 76 <kotin76@yahoo.com> wrote:

> Hi All,
>
> Thanks for your quick reply's.
>
> I executed the program from wt hans suggestd. it works fine.
>
> some times i am going to extract at other location like below
>
> string = "45225016   3702464  39225208   9% /dev/sda4  "
> string = "45225016   3702464  39225208   9% /dev/sda1256  "
> string = "45225016   3702464  39225208   9% /dev/sdaERT7890  "
> string = "45225016   3702464  39225208   9  /dev/sda4sdfsd  "
> string = "45225016   3702464  39225208   9% /dev/sda4fsdfs  "
>
> i understand one thing,
>
> we can success if we create the logic to extract string starting with
> /dev and to up to the first non alpha numeric.
>
> have you suggest any idea for this?
>
> Regards
> kotin
>
>
>
>
>
>
> Josh Cheek wrote in post #1013337:
> > On Wed, Jul 27, 2011 at 7:54 AM, kotin 76 <kotin76@yahoo.com> wrote:
> >
> >> 1. i dont  know how many character will come after /dev like it may come
> >> Random string like
> >>
> >>
> > It's not really clear to me what "extract" means. Are you interested in
> > knowing what it begins with, or are you interested in removing it from
> > the
> > string, or both?
> >
> > Anyway, looking at your examples, this works. But if you end up with
> > spaces
> > in the filenames, it won't work (hence the reason I think it's stupid
> > how
> > Unix loves turning everything into whitespace separated values).
> >
> >
> > string = "/dev/sda4             45225016   3702464  39225208   9% /
> > /dev/sda1256             45225016   3702464  39225208   9% /
> > /dev/sdaERT7890             45225016   3702464  39225208   9%/
> > /dev/sda4sdfsd             45225016   3702464  39225208   9%/
> > /dev/sda4fsdfs             45225016   3702464  39225208   9%/"
> >
> > string.each_line do |line|
> >   first, rest = line.split(/\s+/, 2)
> >   p first
> >   p rest
> >   puts
> > end
> >
> > # >> "/dev/sda4"
> > # >> "45225016   3702464  39225208   9% /\n"
> > # >>
> > # >> "/dev/sda1256"
> > # >> "45225016   3702464  39225208   9% /\n"
> > # >>
> > # >> "/dev/sdaERT7890"
> > # >> "45225016   3702464  39225208   9%/\n"
> > # >>
> > # >> "/dev/sda4sdfsd"
> > # >> "45225016   3702464  39225208   9%/\n"
> > # >>
> > # >> "/dev/sda4fsdfs"
> > # >> "45225016   3702464  39225208   9%/"
> > # >>
>
> --
> Posted via http://www.ruby-forum.com/.
>
>

Here, I put your strings into rubular http://rubular.com/r/dbuEen46gb

How about trying to create a regex that matches your data and then posting
it here for feedback.

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