From: Cheyne Li <happy.go.lucky.clr@...>
Date: 2008-05-30T06:44:13+09:00
Subject: Re: Is there a easy way to find and replay a match

Thanks a lot, it really helped. But I don't know why if i use regular 
expression to match the pattern "aaa=.*", it's not working with sub, but 
gsub.


Tor Erik Linnerud wrote:
> Cheyne Li wrote:
>> I need "aaa=4" in the file instead of just print out
> 
> File.open('somefile', 'r+') do |file|
>   content = file.read.sub('aaa=100', 'aaa=4')
>   file.seek(0)
>   file.write(content)
> }
> 
> Read more about File at
> http://www.ruby-doc.org/core/classes/File.html
> 
> although this documentation isn't the easiest to follow.
> 
> Tor Erik

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