From: Josh Cheek <josh.cheek@...>
Date: 2011-04-11T17:51:30+09:00
Subject: Re: File.open very basic

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Content-Type: text/plain; charset=ISO-8859-1

Maybe your text editor doesn't run it from the same location the files are
stored in. When you say to open "text.txt" it is looking in your current
directory, Dir.pwd, not the current directory of the file
File.dirname(__FILE__).




~/deleteme/file-test  $ tree
.
|-- linecounter
|   |-- linecount.rb
|   `-- text.txt
`-- text.txt
1 directory, 3 files

 ~/deleteme/file-test  $ cd linecounter/

~/deleteme/file-test/linecounter  $ ruby linecount.rb
5

~/deleteme/file-test/linecounter  $ cat text.txt
1
2
3
4
5

~/deleteme/file-test/linecounter  $ cd ..

~/deleteme/file-test  $ ruby linecounter/linecount.rb
3

~/deleteme/file-test  $ cat text.txt
1
2
3

~/deleteme/file-test  $ rm text.txt

~/deleteme/file-test  $ ruby linecounter/linecount.rb
linecounter/linecount.rb:2:in `initialize': No such file or directory -
text.txt (Errno::ENOENT)
    from linecounter/linecount.rb:2:in `open'
    from linecounter/linecount.rb:2:in `<main>'

~/deleteme/file-test  $ tree
.
`-- linecounter
    |-- linecount.rb
    `-- text.txt

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