From: Brian Candler <b.candler@...>
Date: 2010-04-13T20:58:12+09:00
Subject: Re: how to delete the first two characters  of each row?

Pen Ttt wrote:
> how to delete the first two characters  of each row?
> i want to delete the first two characters  of each row in file
> /home/pt/test/mtp.txt
> 
> 
> io=open("/home/pt/test/mtp.txt","r")
> io1=open("/home/pt/test/mtpback.txt","w")
> while line=io.gets
>    ioput=line.delete("/^..../")

You are trying to delete exactly the string of characters "/^..../"

You need to match against a regular expression instead. For example,

    ioput=line.sub(/^..../, '')

(That will delete the first 4 characters in each line, but only if there 
are 4 or more)
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