From: kotin 76 <kotin76@...>
Date: 2011-07-27T22:26:02+09:00
Subject: Re: String manuplation example

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%/"
> # >>

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