`Dir.pwd` seems to do the trick.

http://ruby-doc.org/core/Dir.html#method-c-pwd

`File.expand_path File.dirname(__FILE__)` will return the directory relative to the file this command is called from.

But `Dir.pwd` returns the working directory (results identical to executing `pwd` in your terminal)

As for the path relative to the current executing script, since **Ruby 2.0** you can also use

    __dir__

So this is basically the same as

    File.dirname(__FILE__)

This will give you the working directory of the current file. 
  
    File.dirname(__FILE__)

Example:

current_file: &quot;/Users/nemrow/SITM/folder1/folder2/amazon.rb&quot;

result: &quot;/Users/nemrow/SITM/folder1/folder2&quot;



Through this you can get absolute path of any file located in any directory.

    File.join(Dir.pwd,&#39;some-dir&#39;,&#39;some-file-name&#39;)

This will return

    =&gt; &quot;/User/abc/xyz/some-dir/some-file-name&quot;

If you want to get the full path of the directory of the current rb file:

    File.expand_path(&#39;../&#39;, __FILE__)

How do I prevent XSS (cross-site scripting) using just HTML and PHP?

I&#39;ve seen numerous other posts on this topic but I have not found an article that clear and concisely states how to actually prevent XSS.

How to prevent XSS with HTML/PHP?

If you have worked with JavaScript at any length you are aware that Internet&amp;nbsp;Explorer does not implement the ECMAScript function for Array.prototype.indexOf() [including Internet&amp;nbsp;Explorer&amp;nbsp;8]. It is not a huge problem, because you can extend the functionality on your page with the following code.

    Array.prototype.indexOf = function(obj, start) {
         for (var i = (start || 0), j = this.length; i &lt; j; i++) {
             if (this[i] === obj) { return i; }
         }
         return -1;
    }

When should I implement this?

Should I wrap it on all my pages with the following check, which checks if the prototype function exists and if not, go ahead and extend the Array prototype?

    if (!Array.prototype.indexOf) {

        // Implement function here

    }

Or do browser check and if it is Internet&amp;nbsp;Explorer then just implement it?

    //Pseudo-code

    if (browser == IE Style Browser) {

         // Implement function here

    }


How to fix Array indexOf() in JavaScript for Internet Explorer browsers

I&#39;m running Ruby on Windows though I don&#39;t know if that should make a difference.  All I want to do is get the current working directory&#39;s absolute path.  Is this possible from irb?  Apparently from a script it&#39;s possible using `File.expand_path(__FILE__)`

But from irb I tried the following and got a &quot;Permission denied&quot; error:

    File.new(Dir.new(&quot;.&quot;).path).expand

how to get the current working directory&#39;s absolute path from irb

I'm running Ruby on Windows though I don't know if that should make a difference. All I want to do is get the current working directory's absolute path. Is this possible from irb? Apparently from a script it's possible using <code>File.expand_path(__FILE__)</code>
But from irb I tried the following and got a "Permission denied" error:
<pre><code class="hljs language-csharp">File.new(Dir.new(".").path).expand
</code></pre>

I have user entries as filenames. Of course this is not a good idea, so I want to drop everything except `[a-z]`, `[A-Z]`, `[0-9]`, `_` and `-`. 

For instance:

    my&#167;document$is&#176;&#176;   very&amp;interesting___thisIs%nice445.doc.pdf

should become

    my_document_is_____very_interesting___thisIs_nice445_doc.pdf

and then ideally

    my_document_is_very_interesting_thisIs_nice445_doc.pdf

Is there a nice and elegant way for doing this?

How to make a Ruby string safe for a filesystem?

I am total begineer in ruby so its very novice question.

I am trying to concatenate a string with a float value like follows and then printing it.

    puts &quot; Total Revenue of East Cost: &quot; + total_revenue_of_east_cost 

total_revenue_of_east_cost is a variable holding float value, how i can make it print?

Concatenating string with number in ruby

I have tried MongoMapper and it is feature complete (offering almost all AR functionality) but i was not very happy with the performance when using large datasets. Has anyone compared with Mongoid? Any performance gains ?

Mongoid or MongoMapper?

Is  there any possibility to return multiple values from method?  Something like this:

    def someMethod()
      return [&quot;a&quot;, 10, SomeObject.new]
    end

    [a, b, c] = someMethod

Return two and more values from a method

&gt; **Possible Duplicate:**  
&gt; [What does map(&amp;amp;:name) mean in Ruby?](https://stackoverflow.com/questions/1217088/what-does-mapname-mean-in-ruby)  

&lt;!-- End of automatically inserted text --&gt;

In Ruby, I know that if I do:

    some_objects.each(&amp;:foo)

It&#39;s the same as

    some_objects.each { |obj| obj.foo }

That is, `&amp;:foo` creates the block `{ |obj| obj.foo }`, turns it into a Proc, and passes it to each.  Why does this work?  Is it just a Ruby special case, or is there reason why this works as it does?

Ruby ampersand colon shortcut

I am writing a Ruby script for use in the Rails environment, but I chose to run it from irb because reloading the Rails console can be a pain. Now the wait time is much shorter from irb, but I&#39;m bothered that I have to restart irb and require the script everytime I make a change. Is there a simpler way of reloading a script from irb? 

I found a method in [this thread][1], but that only applies to gem files apparently. My require statement looks like this

     require &quot;#{File.expand_path(__FILE__)}/../lib/query&quot;


EDIT: Having tried `load` rather than `require`, I still couldn&#39;t get it to work. I can&#39;t get a stop on these errors.

    ruby-1.9.2-p0 &gt; load &quot;#{File.expand_path(__FILE__)}/../lib/query.rb&quot;
    LoadError: no such file to load -- /Users/newuser/Dropbox/Sites/rails/hacknyc/(irb)/../lib/query.rb


  [1]: https://stackoverflow.com/questions/3463182/reload-rubygem-in-irb


How can I reload a script in IRB?

I was testing some DB entries in our production server in Rails Console where almost all the commands were producing a huge number of lines of output and causing the ssh channel to hang.

Is there a way to suppress the console/irb screenfuls?

How to suppress Rails console/irb outputs

I am starting out with Ruby on Rails. I am currently going through a tutorial where it says that I have to run a .rb file from IRB and that that will create a .xml file in my current directory.

My question is how do I run a .rb file  in IRB?  
And do I have to be in the directory where this .rb file lives when I run it in IRB?

I tried the following: just typing `irb` on the command line in the directory of the file. That starts an IRB session as far as I understand.  
Then I typed `irb &quot;filename.rb&quot;` which went through but didn&#39;t create anything in the current directory but at least it didn&#39;t give any errors.

I also tried a whole bunch of other stuff that plain gave me errors. So I don&#39;t think I can solve this myself and googling the matter didn&#39;t help at all.

I am running Leopard.

How to run a .rb file from IRB?

I am using IRB (interactive ruby console) to learn how to program with Ruby. How do I load a file into the console if I write my programs in a text editor first?



Ruby: How to load a file into interactive ruby console (IRB)?

If I, say, loop through all the instances of a given model and output something from each, at the end, irb will still print the entire object. 

If the object ends up taking hundreds of lines, it&#39;ll be a long way up before I see what I was actually looking for. Is there a way to disable this in the rails console?

Stop rails console from printing out the object at the end of a loop

Let&#39;s say I have my main class in `C:\Users\Justian\Documents\`. How can I get my program to show that it&#39;s in `C:\Users\Justian\Documents`?

Hard-Coding is not an option- it needs to be adaptable if it&#39;s moved to another location.

**I want to dump a bunch of CSV files in a folder, have the program recognize all the files, then load the data and manipulate them. I really just want to know how to navigate to that folder.**

How to get current working directory in Java?

How can I change my current working directory in C++ in a platform-agnostic way?

I found the `direct.h` header file, which is Windows compatible, and the `unistd.h`, which is UNIX/POSIX compatible.

Change the current working directory in C++

What is current directory of shell script? I this current directory from which I called it? Or this directory where script located?

Shell script current directory?

Is there a different way, other than `process.cwd()`, to get the pathname of the current project&#39;s root-directory. Does Node implement something like ruby&#39;s property, `Rails.root`,. I&#39;m looking for something that is constant, and reliable.

Determine project root from a running node.js application

I want to copy a file from a jar. The file that I am copying is going to be copied outside the working directory. I have done some tests and all methods I try end up with 0 byte files.

**EDIT**: I want the copying of the file to be done via a program, not manually.

Content Type	Original Author	Original Content on Stackoverflow
Question	Dexygen	View Question on Stackoverflow
Solution 1 - Ruby	user85509	View Answer on Stackoverflow
Solution 2 - Ruby	Psylone	View Answer on Stackoverflow
Solution 3 - Ruby	udo	View Answer on Stackoverflow
Solution 4 - Ruby	Jordan Rumpelstiltskin Nemrow	View Answer on Stackoverflow
Solution 5 - Ruby	yeshwant singh	View Answer on Stackoverflow
Solution 6 - Ruby	Châu Hồng Lĩnh	View Answer on Stackoverflow

how to get the current working directory's absolute path from irb

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How to fix Array indexOf() in JavaScript for Internet Explorer browsers

How to prevent XSS with HTML/PHP?

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