&lt;pre&gt;&lt;code&gt;% sudo apt-get install apache2-utils&lt;/code&gt;&lt;/pre&gt;

The command-not-found package in Ubuntu provides some slick functionality where if you type a command that can&#39;t be resolved to an executable (or bash function or whatever) it will query your apt sources and find a package that contains the binary you tried to execute.  So, in this case, I typed &lt;code&gt;ab&lt;/code&gt; at the command prompt:
&lt;pre&gt;
&lt;code&gt;
% ab
The program &#39;ab&#39; is currently not installed.  You can install it by typing:
sudo apt-get install apache2-utils
bash: ab: command not found
&lt;/code&gt;
&lt;/pre&gt;

Another way to search for missing files, e.g. if you use zsh, want to disable command-not-found (slows things down when you misstype commandnames), or are looking for a file that is not an executable:

    $ sudo aptitude install apt-file
    $ sudo apt-file update
    $ apt-file search bin/ab

I need to write a Java Comparator class that compares Strings, however with one twist.  If the two strings it is comparing are the same at the beginning and end of the string are the same, and the middle part that differs is an integer, then compare based on the numeric values of those integers.  For example, I want the following strings to end up in order they&#39;re shown:

  - aaa
  - bbb 3 ccc
  - bbb 12 ccc
  - ccc 11
  - ddd
  - eee 3 ddd jpeg2000 eee
  - eee 12 ddd jpeg2000 eee

As you can see, there might be other integers in the string, so I can&#39;t just use regular expressions to break out any integer.  I&#39;m thinking of just walking the strings from the beginning until I find a bit that doesn&#39;t match, then walking in from the end until I find a bit that doesn&#39;t match, and then comparing the bit in the middle to the regular expression &quot;[0-9]+&quot;, and if it compares, then doing a numeric comparison, otherwise doing a lexical comparison.

Is there a better way?

**Update** I don&#39;t think I can guarantee that the other numbers in the string, the ones that may match, don&#39;t have spaces around them, or that the ones that differ do have spaces.

Sort on a string that may contain a number

This is actually a two part question. First,does the HttpContext.Current correspond to the current System.UI.Page object?

And the second question, which is probably related to the first, is why can&#39;t I use the following to see if the current page implements an interface:

    private IWebBase FindWebBase()
    {
    	if (HttpContext.Current as IWebBase != null)
    	{
    		return (IWebBase)HttpContext.Current.;
    	}
    	throw new NotImplementedException(&quot;Crawling for IWebBase not implemented yet&quot;);
    }


The general context is that some controls need to know whether they are executing as a SharePoint webpart, or as part of an Asp.Net framework.

I have solved the problem by requiring the control to pass a reference to itself, and checking the Page property of the control, but I&#39;m still curious why the above does not work.

The compiler error is:
Cannot convert System.Web.HttpContext to ...IWebBase via a reference conversion, boxing conversion, unboxing conversion, wrapping conversion or null type conversion.

Get current System.Web.UI.Page from HttpContext?

I&#39;m trying to find [ab - Apache HTTP server benchmarking tool][1] for Ubuntu, I&#39;m hoping there&#39;s a package I can install for it. I decided I need to do some simple load testing on my applications.


  [1]: http://httpd.apache.org/docs/2.0/programs/ab.html

What package includes AB the Apache Server Benchmarking Tool in Ubuntu

<p>I'm trying to find <a href="http://httpd.apache.org/docs/2.0/programs/ab.html" target="_blank" rel="noopener noreferrer">ab - Apache HTTP server benchmarking tool</a> for Ubuntu, I'm hoping there's a package I can install for it. I decided I need to do some simple load testing on my applications.</p>


I want to take a screenshot via a python script and unobtrusively save it.

I&#39;m only interested in the Linux solution, and should support any X based environment.

Take a screenshot via a Python script on Linux

I want to search for files containing DOS line endings with grep on Linux.  Something like this:

&lt;!-- language: lang-sh --&gt;

    grep -IUr --color &#39;\r\n&#39; .

The above seems to match for literal `rn` which is not what is desired.

The output of this will be piped through xargs into todos to convert crlf to lf like this

    grep -IUrl --color &#39;^M&#39; . | xargs -ifile fromdos &#39;file&#39;


How do you search for files containing DOS line endings (CRLF) with grep on Linux?

I have  a CIFS share mounted on a Linux machine.  The CIFS server is down, or the internet connection is down, and anything that touches the CIFS mount now takes several minutes to timeout, and is unkillable while you wait.  I can&#39;t even run ls in my home directory because there is a symlink pointing inside the CIFS mount and ls tries to follow it to decide what color it should be.  If I try to umount it (even with -fl), the umount process hangs just like ls does.   Not even sudo kill -9 can kill it.  How can I force the kernel to unmount?

How do you force a CIFS connection to unmount

Briefly: Does anyone know of a GUI for gdb that brings it on par or close to the feature set you get in the more recent version of Visual C++?

In detail:  As someone who has spent a lot of time programming in Windows, one of the larger stumbling blocks I&#39;ve found whenever I have to code C++ in Linux is that debugging anything using commandline gdb takes me several times longer than it does in Visual Studio, and it does not seem to be getting better with practice.  Some things are just easier or faster to express graphically.

Specifically, I&#39;m looking for a GUI that:

  - Handles all the basics like stepping over &amp; into code, watch variables and breakpoints
  - Understands and can display the contents of complex &amp; nested C++ data types
  - Doesn&#39;t get confused by and preferably can intelligently step through templated code and data structures while displaying relevant information such as the parameter types
  - Can handle threaded applications and switch between different threads to step through or view the state of
  - Can handle attaching to an already-started process or reading a core dump, in addition to starting the program up in gdb

If such a program does not exist, then I&#39;d like to hear about experiences people have had with programs that meet at least some of the bullet points.
Does anyone have any recommendations?

**Edit:**&lt;br&gt;
Listing out the possibilities is great, and I&#39;ll take what I can get, but it would be even more helpful if you could include in your responses:&lt;br&gt;
(a) Whether or not you&#39;ve actually used this GUI and if so, what positive/negative feedback you have about it.&lt;br&gt;
(b) If you know, which of the above-mentioned features are/aren&#39;t supported

Lists are easy to come by, sites like this are great because you can get an idea of people&#39;s personal experiences with applications.

Is there a C++ gdb GUI for Linux?

I teach a sort of &quot;lite&quot; C++ programming course to novices (&quot;lite&quot; meaning no pointers, no classes, just plain old C, plus references and STL string and vectors). Students have no previous experience in programming, so I believe that using an interactive debugger would help them understand program flow, variables, and recursion.

The course is taught in Linux. Teaching them to use gdb is just overkill (they will not use nor understand most features). I just need something simple but easy to use: to see at which line the program is now, what is in the stack (local variables, previous calls, etc.). I look something similar to old Turbo Pascal or Turbo C++ Borland&#39;s debugger, or Visual Studio debugger.

Thank you,

Which is the best Linux C/C++ debugger (or front-end to gdb) to help teaching programming?

I&#39;ve got just one page that I want to force to be accessed as an HTTPS page (PHP on Apache). How do I do this without making the whole directory require HTTPS? Or, if you submit a form to an HTTPS page from an HTTP page, does it send it by HTTPS instead of HTTP?

Here is my example:

    http://www.example.com/some-page.php

I want it to only be accessed through:

    https://www.example.com/some-page.php

Sure, I can put all of the links to this page pointed at the HTTPS version, but that doesn&#39;t stop some fool from accessing it through HTTP on purpose...

One thing I thought was putting a redirect in the header of the PHP file to check to be sure that they are accessing the HTTPS version:

    if($_SERVER[&quot;SCRIPT_URI&quot;] == &quot;http://www.example.com/some-page.php&quot;){
      header(&#39;Location: https://www.example.com/some-page.php&#39;);
    }

But that can&#39;t be the right way, can it?

How can I force users to access my page over HTTPS instead of HTTP?

I am getting an 403 access forbidden when attempting to open a page under a vhost where the document root is sitting on a different drive than where apache is sitting. I installed using the apachefriends release. This is my httpd-vhosts.conf file: 

&lt;pre&gt;&lt;code&gt;
NameVirtualHost 127.0.0.1

&amp;lt;VirtualHost 127.0.0.1&gt;
  ServerName foo.localhost
  DocumentRoot &quot;C:/xampp/htdocs/foo/public&quot;
&amp;lt;/VirtualHost&gt;

&amp;lt;VirtualHost 127.0.0.1&gt;
  ServerName bar.localhost
  DocumentRoot &quot;F:/bar/public&quot;
&amp;lt;/VirtualHost&gt;
&lt;/pre&gt;&lt;/code&gt;

When opening bar.localhost in my browser, Apache is giving me 403 Access Forbidden. I tried setting lots of different access rights, even full rights to everyone, but nothing I tried helped.

Edit: Thanks! For future reference, add &#39;Options indexes&#39; within to show directory indexes.

Apache gives me 403 Access Forbidden when DocumentRoot points to two different drives

We have got loads of options for `php + MySQL + Apache` combo... Which is the best pack among these ?

Lets confine our ideas to `WAMP vs XAMPP`, is there a better option to go for?

I created an online programming contest web app called `CodeFire` on `XAMPP`, later I had to switch to `WAMP`, where none of the `php` scripts worked properly... what standard should I follow?

XAMPP and WAMP in the LAMP, what&#39;s the best?

I&#39;ve got a customer trying to access one of my sites, and they keep getting this error &gt; ssl_error_rx_record_too_long

They&#39;re getting this error on all browsers, all platforms. I can&#39;t reproduce the problem at all.

My server and myself are located in the USA, the customer is located in India.

I googled on the problem, and the main source seems to be that the SSL port is speaking in HTTP. I checked my server, and this is not happening. I tried &lt;a href=&quot;http://support.servertastic.com/error-code-ssl-error-rx-record-too-long/&quot;&gt;the solution mentioned here&lt;/a&gt;, but the customer has stated it did not fix the issue.

Can anyone tell me how I can fix this, or how I can reproduce this???

**THE SOLUTION**

Turns out the customer had a misconfigured local proxy!

Hope that helps anyone finding this question trying to debug it in the future.

ssl_error_rx_record_too_long and Apache SSL

What techniques and/or modules are available to implement robust rate limiting (requests|bytes/ip/unit time) in apache?

How can I implement rate limiting with Apache? (requests per second)

I&#39;m on laptop (Ubuntu) with a network that use HTTP proxy (only http connections allowed).&lt;br&gt;
When I use svn up for url like &#39;http://.....&#39; everything is cool (google chrome repository works perfect), but right now I need to svn up from server with &#39;svn://....&#39; and I see connection refused.&lt;br&gt;
I&#39;ve set proxy configuration in /etc/subversion/servers but it doesn&#39;t help.&lt;br&gt;
Anyone have opinion/solution?&lt;br&gt;


svn over HTTP proxy

I need to determine which version of GTK+ is installed on Ubuntu

Man does not seem to help

How do you find out which version of GTK+ is installed on Ubuntu?

I have the source of a program (taken from cvs/svn/git/...) and I&#39;d like to build a Debian/Ubuntu package for it. The package is present in the repositories, but:

 * It is an older version (lacking features I need)
 * I need slightly different compile options than the default.

What is the easiest way of doing it? I am concerned about a couple of things
 
 * How can I check if I have listed all the dependencies correctly? (I can get some hints by looking on what the older version depended, but new dependencies may have been added.)
 * How I can I prevent the update system installing the older version in the repo on an update?
 * How I can prevent the system installing a newer version (when its out), overwriting my custom package?

How to build a Debian/Ubuntu package from source?

I&#39;m trying to build GNU grep, and when I run make, I get:

    [snip]
    /bin/bash: line 9: makeinfo: command not found

What is makeinfo, and how do I get it?

(This is Ubuntu, if it makes a difference)

What is makeinfo, and how do I get it?

I&#39;m having a problem running tomcat 6 with eclipse 3 in ubuntu.

I installed tomcat 6 on my machine and when I tested it using `http://localhost:8080`, it worked fine.

But whenever i want to create a server in eclipse, i select Tomcat 6 , i get the following message
`&quot;Cannot create a server using the selected type&quot;`, and i can&#39;t click next.


Any idea why?

Content Type	Original Author	Original Content on Stackoverflow
Question	reconbot	View Question on Stackoverflow
Solution 1 - Linux	Brian Phillips	View Answer on Stackoverflow
Solution 2 - Linux	0x89	View Answer on Stackoverflow

What package includes AB the Apache Server Benchmarking Tool in Ubuntu

Linux Problem Overview

Linux Solutions

Solution 1 - Linux

Solution 2 - Linux

Get current System.Web.UI.Page from HttpContext?

Sort on a string that may contain a number

Attributions