From: Alex DeCaria <alex.decaria@...>
Date: 2010-04-13T20:25:56+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("/^..../")
>    io1.write(ioput)
> end
> 
> when i open /home/pt/test/mtpback.txt,there is not what i want,where is
> wrong?

You could do

 io=open("/home/pt/test/mtp.txt","r")
 io1=open("/home/pt/test/mtpback.txt","w")
 while line=io.gets
    ioput=line[2..line.length]  # extract substring without first two 
characters
    io1.write(ioput)
 end
-- 
Posted via http://www.ruby-forum.com/.