From: Stefano Crocco <stefano.crocco@...>
Date: 2013-02-03T07:14:36+09:00
Subject: Re: Open file that its name given by STDIN.gets

On Sunday 03 February 2013 aref aslani wrote
> Hi all. I'm following the Zed Shaw's ruby tutorials.
> in ex15 i've changed this line
> 
> filename = ARGV.first
> 
> to
> 
> filename = STDIN.gets
> 
> and this is the command line error:
> 
> → ruby test.rb
> test.rb
> 
> > test.rb:9:in `initialize': No such file or directory - aref
> > (Errno::ENOENT)
> 
>   from test.rb:9:in `open'
>   from test.rb:9:in `<main>'
> 
> what is the problem?
> P.S. the ruby file is attached.
> 
> Attachments:
> http://www.ruby-forum.com/attachment/8102/Screen_Shot_1391-11-15_at_1.31.56_
> AM.png
> 
> 
> --
> Posted via http://www.ruby-forum.com/.

gets returns a string with a trailing newline. This means that, if you enter

test

as your file name, the variable filename will contain the string "test\n". You 
can use String#chomp to remove it:

filename = STDIN.gets.chomp

I hope this helps

Stefano