From: Li Chen <chen_li3@...>
Date: 2006-10-09T22:13:34+09:00
Subject: How to remove  empty space in a string and others

Hi all,

1) I read lines from a file and put them into one string. There are many 
empty sapces within the string. Which method is used to remove the 
spaces? I try gsub!("\s",'') but it doesn't work. Any help will be 
appreciated.

2) I read each line from a file and split each of them into several 
fields/segments. Then I need to populate an array with one field only 
from each line. How do I do that? I know do these in Perl but have no 
idea using Ruby.

3) How do I search help or some methods/predifined variables from ruby 
command prompt? Is it possible to do that? Right now the only thing I 
can do is  to open the folder containing the manual and read them in IE 
browser. Is this the Ruby way?

Thanks in advance,

Li

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