From: Robert Klemme <shortcutter@...>
Date: 2011-09-29T18:56:46+09:00
Subject: Re: IO.readlines will not accept variable with file name Why?

On Thu, Sep 29, 2011 at 11:14 AM, Joda jenson <jodajen2@yahoo.com> wrote:
> I am fairly new to Ruby and I am stuck on this.  Would someone have a
> suggestion.
>
> I'm trying to read a file with IO.readlines, letting a user give the
> file name.
> __________________________________________________
> puts "what is the name of the file=>"
> filename1 = gets
>
> filearray = IO.readlines(filename)
> puts filearray [0]
> __________________________________________________
>
> If I hard code the file name works great.
>
> filearray = IO.readlines("/home/user/file.txt")
>
> __________________________________________________
> It seems to be something to do with the double quotes.
> I have tried to wrap the variable with double quotes.
>
> filename1 = ("\"/home/user/file.txt\"")
>
> It will print the Double quote but still will not work if I pass it to
> the IO.readlines()
>
> It gives a (Errno::ENOENT)
>
> It doesn't seem to matter how I doctor a string with quotes I can't get
> IO.readlines() to accept it.  Only hard coding it works for some reason.

Insert a line after "gets" like this:

puts "what is the name of the file=>"
filename1 = gets
p filename1 # look at the output

filearray = IO.readlines(filename)
puts filearray [0]

You'll immediately see what's wrong. :-)

Kind regards

robert

-- 
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