From: ts <decoux@...>
Date: 2008-05-11T22:29:45+09:00
Subject: Re: Erasing text from a file

Lucas L. wrote:
> Is there a way to simple erase text from the file?

 perhaps File#truncate

---------------------------------------------------------- File#truncate
     file.truncate(integer)    => 0
------------------------------------------------------------------------
     Truncates _file_ to at most _integer_ bytes. The file must be
     opened for writing. Not available on all platforms.

        f = File.new("out", "w")
        f.syswrite("1234567890")   #=> 10
        f.truncate(5)              #=> 0
        f.close()                  #=> nil
        File.size("out")           #=> 5



Guy Decoux