From: Mike Durham <mdurham@...>
Date: 2006-09-15T08:00:49+09:00
Subject: Re: Need help about Ruby with text file

Paul Lutus wrote:
> Oscar Lok wrote:
> 
>> Hi, everybody
>>
>> This is my first time get into this forum.
>> I would like to know that is it a forum for us to discuss about
>> everythings in Ruby, please?
>> If so,
>> 1)I would like to know that how can I delete or remove a line in a text
>> file, please?
>> 2)How can I read some letter in a line, please?
>> e.g. a text file like this:-
>>
>> aabbcc
>> ddeeff
>> gghhii
>> jjkkll
>>
>> 1)I want to delete ddeeff become like this:-
>> aabbcc
>> gghhii
>> jjkkll
> 
> --------------------------------------------------
> 
> #!/usr/bin/ruby
> 
> data=<<EOF
> aabbcc
> ddeeff
> gghhii
> jjkkll
> EOF
> 
> puts "Before:",data
> 
> data.sub!(/ddeeff\n/,"")
> 
> puts "\nAfter:",data
> 
> --------------------------------------------------
> 
> Output:
> 
> Before:
> aabbcc
> ddeeff
> gghhii
> jjkkll
> 
> After:
> aabbcc
> gghhii
> jjkkll
> 
> 
>> 2)I get the result like :-
>> hh
> 
> Please explain the circumstances under which you want to get this result.
> 
He said the text is "in a file"
Cheers