You need to secure that directory before the install. Use:

    chmod o-w /usr/local
to do this. If that doesn&#39;t work, the you probably need to be `root` (or otherwise suitably empowered) so you can try:

    sudo chmod o-w /usr/local
and enter your password.

I&#39;ve seen this sort of thing before on some software which really wants things set up in a certain way to ensure that its assumptions are met. In any case, it&#39;s actually a bad idea to have world writable directories except when you _know_ security on them is not a big deal.

`/usr/local` is important enough that you _shouldn&#39;t_ allow anyone to write to it.


For osx it&#39;s: `sudo chmod -R o-w /usr/local`

You will need to run:

    sudo chmod o-w -R /usr/local 
   

I&#39;ve installed rvm as a way of making sure that my local development version of ruby is the same as my server&#39;s for a particular app i work on (ruby 1.8.7).  I&#39;ve done this, and installed ruby 1.8.7 ok.  However, when i try to start the rails console i get this error:

    Readline was unable to be required, if you need completion or history install readline then reinstall the ruby.
    You may follow &#39;rvm notes&#39; for dependencies and/or read the docs page http://rvm.beginrescueend.com/packages/readline/ . Be sure you &#39;rvm remove X ; rvm install X&#39; to re-compile your ruby with readline support after obtaining the readline libraries.
    Couldn&#39;t load Wirble: no such file to load -- wirble

I&#39;ve read the notes on the page that error refers to (http://rvm.beginrescueend.com/packages/readline/), and followed the instructions, which involve basically installing readline, uninstalling ruby 1.8.7, then installing ruby 1.8.7 again with readline support.  (actually that page uses ruby 1.9.2 as an example but i&#39;m assuming it should work with 1.8.7 as well.  Perhaps that&#39;s not the case).

But, i still get the same error.  Has anyone else been through this and figured it out?  
Grateful for any advice - max

EDIT - i&#39;m using Ubuntu 9.10 btw in case that&#39;s relevant.

EDIT - here&#39;s my output for `rvm info` as asked for below:

    $ rvm info

    system:

      system:
        uname:       &quot;Linux max-laptop 2.6.31-22-generic #68-Ubuntu SMP Tue Oct 26 16:38:35 UTC 2010 i686 GNU/Linux&quot;
        bash:        &quot;/bin/bash =&gt; GNU bash, version 4.0.33(1)-release (i486-pc-linux-gnu)&quot;
        zsh:         &quot; =&gt; not installed&quot;

      rvm:
        version:      &quot;rvm 1.1.6 by Wayne E. Seguin (wayneeseguin@gmail.com) [http://rvm.beginrescueend.com/]&quot;

      homes:
        gem:          &quot;not set&quot;
        ruby:         &quot;not set&quot;

      binaries:
        ruby:         &quot;/usr/bin/ruby&quot;
        irb:          &quot;/usr/bin/irb&quot;
        gem:          &quot;/usr/bin/gem&quot;
        rake:         &quot;/usr/bin/rake&quot;

      environment:
        PATH:         &quot;/home/max/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/var/lib/gems/1.8/bin:/home/max/software/svnmerge:/home/max/.gem/ruby/1.8/bin:/home/max/work/e_learning_resource/trunk/public/assets/dvd_files/bin:/opt/firefox:/home/max/.rvm/bin:/home/max/.rvm/bin&quot;
        GEM_HOME:     &quot;&quot;
        GEM_PATH:     &quot;&quot;
        MY_RUBY_HOME: &quot;&quot;
        IRBRC:        &quot;&quot;
        RUBYOPT:      &quot;&quot;
        gemset:       &quot;&quot;


Problems with the rails console, RVM and readline

When creating a custom component in android it is often asked how to create and pass through the attrs property to the constructor.

It is often suggested that when creating a component in java that you simply use the default constructor, i.e. 

    new MyComponent(context);

rather than attempting to create an attrs object to pass through to the overloaded constructor often seen in xml based custom components. I&#39;ve tried to create an attrs object and it doesn&#39;t seem either easy or at all possible (without an exceedingly complicated process), and by all accounts isn&#39;t really required. 

My question is then: What is the most efficient way of construction a custom component in java that passes or sets properties that would have otherwise been set by the attrs object when inflating a component using xml?





How to pass custom component parameters in java and xml

I am trying to install rails 3.0.3 and i get the following error every time: 

&lt;!-- language: lang-none --&gt;

    Insecure world writable dir /usr/local in PATH, mode 040777

When I check to see if it installed I get this error:

&lt;!-- language: lang-none --&gt;

    /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems.rb:827:in `report_activate_error&#39;: Could not find RubyGem rails (&gt;= 0) (Gem::LoadError)
     from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems.rb:261:in `activate&#39;
     from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems.rb:68:in `gem&#39;
     from /usr/bin/rails:18

Any idea what I am doing wrong? Sorry, I&#39;m a newb!


Insecure world writable dir /usr/local in PATH when trying to install Rails 3.0.3

I am trying to install rails 3.0.3 and i get the following error every time:

<pre><code class="hljs language-bash">Insecure world writable dir /usr/local in PATH, mode 040777
</code></pre>
When I check to see if it installed I get this error:

<pre><code class="hljs language-python">/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems.rb:827:in `report_activate_error': Could not find RubyGem rails (>= 0) (Gem::LoadError)
 from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems.rb:261:in `activate'
 from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems.rb:68:in `gem'
 from /usr/bin/rails:18
</code></pre>
Any idea what I am doing wrong? Sorry, I'm a newb!

I have a work GitHub account and a personal one. First I used the personal one for test projects, then I moved on and did a repository with the other account on the same computer.

Now I wanted to create a new repository on my personal account again, I changed the global and local `user.name`, and did a new ssh key pair, entered in the GitHub setup page. Then I set up the directory

    git init
    git remote add origin &lt;url&gt;
    git push origin

but that now tells me

&gt; ERROR: Permission to personaluser/newrepo.git denied to &lt;workusername&gt;

I have no idea how the other account is connected to this one. `.git/config` shows no `workusername` related things.

*If you&#39;re using Windows 10 take your time to read the Rajan&#39;s answer.*

Git pushing to remote GitHub repository as wrong user

Attempting to install rvm and ruby 1.9.2

I already installed homebrew and git, but couldn&#39;t get complete updates because I kept getting permission errors. Re-installed Snow Leopard and repaired permissions.

Now this happens...

&gt;$ brew install wget
&gt;
&gt;Error: Cannot write to /usr/local/Cellar 

Installing in Homebrew errors

I want to create a file in a directory owned by the staff group which I am a member of.  Why can I not do this?

    bmccann@bmccann-htpc:~$ ls -l /usr/local/lib/R/
    total 4
    drwxrwsr-x 2 root staff 4096 2010-07-31 16:21 site-library
    bmccann@bmccann-htpc:~$ id -nG bmccann
    bmccann adm dialout cdrom plugdev staff lpadmin admin sambashare
    bmccann@bmccann-htpc:~$ touch /usr/local/lib/R/site-library/tmp
    touch: cannot touch `/usr/local/lib/R/site-library/tmp&#39;: Permission denied



Linux, Why can&#39;t I write even though I have group permissions?

I&#39;m trying to connect to Amazon EC2 using OpenSSH in windows but I need to set the permissions of my key file.

What is the windows equivalent of `CHMOD 600`?

I&#39;ve googled extensively and found only blogspam.

EDIT: Windows 7, using DOS.

Windows CHMOD 600

Here&#39;s an issue with IIS 7.5 and ASP.NET that I&#39;ve been researching and getting nowhere with. Any help would be greatly appreciated.

My question is: using ASP.NET in IIS 7.5, how does IIS and/or the operating system allow the web application to write to a folder like `C:\dump` when running under full trust? How is it that I don&#39;t have to explicitly add write access for the application pool user (in this case `ApplicationPoolIdentity`)?

This much I know:

 - In IIS 7.5, the default Identity for an Application Pool is `ApplicationPoolIdentity`.
 - `ApplicationPoolIdentity` represents a Windows user account called &quot;IIS APPPOOL\AppPoolName&quot;, which is created when the Application Pool is created, where AppPoolName is the name of the Application Pool.
 - The &quot;IIS APPPOOL\AppPoolName&quot; user is by default a member of the `IIS_IUSRS` group.
 - If you are running under Full Trust, your web application can write to many areas of the file system (excluding folders like `C:\Users`, `C:\Windows`, etc). For example, your application will have access to write to some folders, like, `C:\dump`.
 - By default, the `IIS_IUSRS` group is not given read or write access to `C:\dump` (at least not access that is visible through the &quot;Security&quot; tab in Windows Explorer).
 - If you deny write access to `IIS_IUSRS`, you will get a SecurityException when trying to write to the folder (as expected).

So, taking all of that into account, how is write access granted to the &quot;IIS APPPOOL\AppPoolName&quot; user? The w3wp.exe process runs as this user, so what allows this user to write to a folder it doesn&#39;t seem to have explicit access to?

Please note that I understand this was probably done for the sake of convenience, since it would be a pain to grant a user access to every folder it needs to write to if you are running under Full Trust. If you want to limit this access, you can always run the application under Medium Trust. I am interested in finding out about the way the operating system and/or IIS allows these writes to take place, even though there appears to be no explicit file system access granted.

IIS AppPoolIdentity and file system write access permissions

I&#39;m installing Git on Windows XP. During the setup, the installer asks whether I want:

&gt; 1: Context menu entries: &quot;Git Bash Here&quot; (and the &quot;Git GUI Here&quot; option)

or

&gt; 2: &quot;git-cheetah shell extension (32-bit only)&quot;

Basically, which should I do? I can&#39;t do both.

More specifically, what is the most commonly used version? Is the Git Bash tool the same as the shell extension?


Installing git on Windows: Git Bash Here or git-cheetah shell extension?

[`pip`][1] is a replacement for [`easy_install`][2]. But should I install `pip` using `easy_install` on Windows? Is there a better way?

  [1]: https://pip.pypa.io/en/stable/
  [2]: http://setuptools.readthedocs.io/en/latest/easy_install.html


How can I install pip on Windows?

I&#39;m getting this error from time to time and don&#39;t know what causing this:  
When trying to run/debug an Android app on a real device (Galaxy Samsung S in my case) I&#39;m getting the following error in the Console:  

&gt; Failed to install *.apk on device *: 

&gt; timeout   Launch canceled!

This is all the Console is telling me. LogCat doesn&#39;t provide any information. Eclipse Problems view is not showing any issues. 


I tried the following steps with no success:  
1. Cleaning the project (Project-&gt;Clean)  
2. Restarting device, Eclipse, laptop, all of the above...  
3. Moving the project to a location without spaces, according to &lt;https://stackoverflow.com/questions/4552435/failed-to-install-apk-on-device-emulator-5554-timeout&gt;   


The app has been debugged in the past on that device many times (app is live on Market), but this problem happens every so often, and is VERY FRUSTRATING...

Any help would be greatly appreciated! Thanks.

Android error: Failed to install *.apk on device *: timeout

I am trying to ```import Tkinter```. However, I get an error stating that ```Tkinter``` has not been installed:
```python
ImportError: No module named _tkinter, please install the python-tk package
```
I could probably install it using synaptic manager (can I?), however, I would have to install it on every machine I program on. Would it be possible to add the Tkinter library into my workspace and reference it from there?

Install tkinter for Python

I tried using `gem install pg` but it doesn&#39;t seem to work.

`gem install pg` gives this error

    Temporarily enhancing PATH to include DevKit...
    Building native extensions.  This could take a while...
    ERROR:  Error installing pg:
            ERROR: Failed to build gem native extension.
    
    C:/Ruby/bin/ruby.exe extconf.rb
    checking for pg_config... no
    No pg_config... trying anyway. If building fails, please try again with
     --with-pg-config=/path/to/pg_config
    checking for libpq-fe.h... no
    Can&#39;t find the &#39;libpq-fe.h header
    *** extconf.rb failed ***
    Could not create Makefile due to some reason, probably lack of
    necessary libraries and/or headers.  Check the mkmf.log file for more
    details.  You may need configuration options.
    
    Provided configuration options:
            --with-opt-dir
            --without-opt-dir
            --with-opt-include
            --without-opt-include=${opt-dir}/include
            --with-opt-lib
            --without-opt-lib=${opt-dir}/lib
            --with-make-prog
            --without-make-prog
            --srcdir=.
            --curdir
            --ruby=C:/Ruby/bin/ruby
            --with-pg
            --without-pg
            --with-pg-dir
            --without-pg-dir
            --with-pg-include
            --without-pg-include=${pg-dir}/include
            --with-pg-lib
            --without-pg-lib=${pg-dir}/lib
            --with-pg-config
            --without-pg-config
            --with-pg_config
            --without-pg_config
    
    
    Gem files will remain installed in C:/Ruby/lib/ruby/gems/1.8/gems/pg-0.10.1 for
    inspection.
    Results logged to C:/Ruby/lib/ruby/gems/1.8/gems/pg-0.10.1/ext/gem_make.out



unable to install pg gem

When trying to deliver an email via console I receive this error:

    OpenSSL::SSL::SSLError: hostname was not match with the server certificate

The thing is I really don&#39;t know much about certificates and such, or really how to get started troubleshooting this, I tried to do some investigation with `openssl` and here is the certificate that is returned.

I don&#39;t know if its a problem with Postfix which is running on the server, or my rails app, any help or clues is really appreciated.

    ~% openssl s_client -connect mail.myhostname.com:25 -starttls smtp
    CONNECTED(00000003)
    depth=0 /CN=myhostname
    verify error:num=18:self signed certificate
    verify return:1
    depth=0 /CN=myhostname
    verify return:1
    ---
    Certificate chain
     0 s:/CN=myhostname
       i:/CN=myhostname
    ---
    Server certificate
    -----BEGIN CERTIFICATE-----
    [...redacted...]
    -----END CERTIFICATE-----
    subject=/CN=myhostname
    issuer=/CN=myhostname
    ---
    No client certificate CA names sent
    ---
    SSL handshake has read 1203 bytes and written 360 bytes
    ---
    New, TLSv1/SSLv3, Cipher is DHE-RSA-AES256-SHA
    Server public key is 1024 bit
    Compression: NONE
    Expansion: NONE
    SSL-Session:
        Protocol  : TLSv1
        Cipher    : DHE-RSA-AES256-SHA
        Session-ID: 1AA4B8BFAAA85DA9ED4755194C50311670E57C35B8C51F9C2749936DA11918E4
        Session-ID-ctx: 
        Master-Key: 9B432F1DE9F3580DCC6208C76F96631DC5A4BC517BDBADD5F514414DCF34AC526C30687B96C5C4742E9583555A118232
        Key-Arg   : None
        Start Time: 1292985376
        Timeout   : 300 (sec)
        Verify return code: 18 (self signed certificate)
    ---
    250 DSN


Rails 3: OpenSSL::SSL::SSLError: hostname was not match with the server certificate

I am struggling to push my code to Heroku. And after searching on Google and Stack Overflow questions, I have not been able to find the solution. Here is What I get when I try &quot;git push heroku master&quot; :

    Heroku receiving push
    -----&gt; Rails app detected
    -----&gt; Detected Rails is not set to serve static_assets
           Installing rails3_serve_static_assets... done
    -----&gt; Gemfile detected, running Bundler version 1.0.3
           Unresolved dependencies detected; Installing...
           Fetching source index for http://rubygems.org/
           /usr/ruby1.8.7/lib/ruby/site_ruby/1.8/rubygems/remote_fetcher.rb:300:in `open_uri_or_path&#39;: bad response Not Found 404 (http://rubygems.org/quick/Marshal.4.8/mail-2.2.6.001.gemspec.rz) (Gem::RemoteFetcher::FetchError)
           	from /usr/ruby1.8.7/lib/ruby/site_ruby/1.8/rubygems/remote_fetcher.rb:172:in `fetch_path&#39;
    .
    ....

And finally:

    FAILED: http://docs.heroku.com/bundler
     !     Heroku push rejected, failed to install gems via Bundler
    
    error: hooks/pre-receive exited with error code 1
    To git@heroku.com:myapp.git
     ! [remote rejected] master -&gt; master (pre-receive hook declined)
    error: failed to push some refs to &#39;git@heroku.com:myapp.git&#39;


Thanks for your help!





Heroku push rejected, failed to install gems via Bundler

I would like to take information from another website. Therefore (maybe) I should make a request to that website (in my case a HTTP GET request) and receive the response. 

How can I make this in Ruby on Rails?

If it is possible, is it a correct approach to use in my controllers?

How to make a HTTP request using Ruby on Rails?

Does Rails 3 or Ruby have a built-in way to check if a variable is an integer?

For example,

    1.is_an_int #=&gt; true
    &quot;dadadad@asdasd.net&quot;.is_an_int #=&gt; false?

Checking if a variable is an integer

Please help me in understanding the `:source` option of `has_one/has_many :through` association. The Rails API explanation makes very little sense to me.

&gt; &quot;Specifies the source association name used by `has_many` `:through =&gt;
&gt; :queries`. Only use it if the name cannot be inferred from the
&gt; association. `has_many :subscribers, :through =&gt; :subscriptions` will
&gt; look for either `:subscribers` or `:subscriber` on `Subscription`,
&gt; unless a `:source` is given. &quot;

Content Type	Original Author	Original Content on Stackoverflow
Question	Serik	View Question on Stackoverflow
Solution 1 - Permissions	paxdiablo	View Answer on Stackoverflow
Solution 2 - Permissions	josh803316	View Answer on Stackoverflow
Solution 3 - Permissions	Jai Kumar Rajput	View Answer on Stackoverflow

Insecure world writable dir /usr/local in PATH when trying to install Rails 3.0.3

Permissions Problem Overview

Permissions Solutions

Solution 1 - Permissions

Solution 2 - Permissions

Solution 3 - Permissions

How to pass custom component parameters in java and xml

Problems with the rails console, RVM and readline

Attributions