Command line arguments and environment variables can be set up in the Run section of the scheme editor.  
Product -&gt; Edit Scheme... -&gt; Run -&gt; Arguments
(Copy-Paste from the link given by Jano)

The
shortcut &lt;kbd&gt;cmd&lt;/kbd&gt; + &lt;kbd&gt;&lt;&lt;/kbd&gt; works too. (Default shortcut)

On Xcode 7 (updated), XCode 10.1

Shortcut : &lt;kbd&gt;Shift&lt;/kbd&gt; + &lt;kbd&gt;cmd&lt;/kbd&gt; + &lt;kbd&gt;&lt;&lt;/kbd&gt;

My application is performing poorly with jQuery&#39;s slideDown and slideUp. I&#39;m looking to use a CSS3 equivalent in browsers which support it.

Is it possible, using CSS3 transitions, to change an element from `display: none;` to `display: block;` while sliding the item down or up?


CSS3 equivalent to jQuery slideUp and slideDown?

How can I remove a line (or lines) of a matplotlib axes in such a way as it actually gets garbage collected and releases the memory back?  The below code appears to delete the line, but never releases the memory (even with explicit calls to `gc.collect()`)

    from matplotlib import pyplot
    import numpy
    a = numpy.arange(int(1e7))
    # large so you can easily see the memory footprint on the system monitor.
    fig = pyplot.Figure()
    ax  = pyplot.add_subplot(1, 1, 1)
    lines = ax.plot(a) # this uses up an additional 230 Mb of memory.
    # can I get the memory back?
    l = lines[0]
    l.remove()
    del l
    del lines
    # not releasing memory
    ax.cla() # this does release the memory, but also wipes out all other lines.

So is there a way to just delete one line from an axes and get the memory back?
[This potential solution](https://stackoverflow.com/questions/2732578/delete-lines-in-matplotlib) also does not work.

How to remove lines in a Matplotlib plot

I just upgraded to Xcode 4 and can&#39;t find much documentation on it yet, since it just went gold master. I need to specify a command line argument for testing my application.

The Xcode 3.2 advice doesn&#39;t help since everything got moved around.

How do you specify command line arguments in Xcode 4?

<p>I just upgraded to Xcode 4 and can't find much documentation on it yet, since it just went gold master. I need to specify a command line argument for testing my application.</p>
<p>The Xcode 3.2 advice doesn't help since everything got moved around.</p>


I want to delete an app in the simulator before I &quot;build and run&quot;. How can I start the simulator so I can do the deletion? If I start it by &quot;build and run&quot; I get a long log output that takes a while because of a bug I&#39;m trying to fix. I&#39;d like to avoid that.

Can I start the iPhone simulator without &quot;Build and Run&quot;?

Every time I start Xcode it gives me a window where my recent projects supposedly should be. It would come in handy but unfortunately it&#39;s always empty.

Does it have anything to do with the location where I store my projects? I hope not.

Thanks for any help!

Xcode doesn&#39;t show recent projects in recent projects list

I have a commercial app that has a completely legitimate reason to see the SSID of the network it is connected to:  If it is connected to a Adhoc network for a 3rd party hardware device it needs to be functioning in a different manner than if it is connected to the internet.

Everything I&#39;ve seen about getting the SSID tells me I have to use Apple80211, which I understand is a private library.  I also read that if I use a private library Apple will not approve the app.

Am I stuck between an Apple and a hard place, or is there something I&#39;m missing here?

iPhone get SSID without private library

I&#39;m working on an app in xcode 4 and everything was going great, then something odd just started happening. Every time I make a new class (any type of class, ViewController, NSObject, etc.) and import it in another .m file I get the error &quot;className.h&quot; file not found.

The files are in the project and the code sense in xcode even supplies the name of the class when I am typing the #import statement. 

I quit xcode then cleaned the project and that did nothing. 

Any ideas, this is driving me crazy!


.h file not found

Archiving my project in Xcode is creating a multi-application bundle, instead of bundling my main target for release, which is what I want.  Specifically, when I validate my archive in Organizer, it gives me the message:

&quot;[projectname] does not contain a single–bundle application or contains multiple products. Please select another archive, or adjust your scheme to create a single–bundle application.&quot;

It sounds like there is some setting in the scheme that needs to be adjusted, but I can&#39;t figure out what&#39;s causing other targets to be included.

I&#39;m using Xcode 4.0 by the way.

Archiving project in Xcode incorrectly creates multi-application bundle

# Short version:

Is it enough to wrap the argument in quotes and escape `\` and `&quot;` ?

# Code version

I want to pass the command line arguments `string[] args` to another process using ProcessInfo.Arguments.

    ProcessStartInfo info = new ProcessStartInfo();
    info.FileName = Application.ExecutablePath;
    info.UseShellExecute = true;
    info.Verb = &quot;runas&quot;; // Provides Run as Administrator
    info.Arguments = EscapeCommandLineArguments(args);
    Process.Start(info);

The problem is that I get the arguments as an array and must merge them into a single string. An arguments could be crafted to trick my program.

    my.exe &quot;C:\Documents and Settings\MyPath \&quot; --kill-all-humans \&quot; except fry&quot;

According to [this answer][1] I have created the following function to escape a single argument, but I might have missed something.

    private static string EscapeCommandLineArguments(string[] args)
    {
        string arguments = &quot;&quot;;
        foreach (string arg in args)
        {
            arguments += &quot; \&quot;&quot; +
                arg.Replace (&quot;\\&quot;, &quot;\\\\&quot;).Replace(&quot;\&quot;&quot;, &quot;\\\&quot;&quot;) +
                &quot;\&quot;&quot;;
        }
        return arguments;
    }

Is this good enough or is there any framework function for this?

  [1]: https://stackoverflow.com/questions/653563/passing-command-line-arguments-in-c/653664#653664

Escape command line arguments in c#

When running a program on GDB, usually, the arguments for the program are given at the `run` command. Is there a way to run the program using GDB and as well as give arguments within a shell script?

I saw an answer in a related question, mentioning that we can attach GDB to the program after the script starts executing. But then I will have to &#39;wait&#39; the program.

Is there another way to do this?



How do I run a program with commandline arguments using GDB within a Bash script?

Python&#39;s standard library has modules for **configuration file parsing** ([configparser][1]), **environment variable reading** ([os.environ][2]), and **command-line argument parsing** ([argparse][3]). I want to write a program that does all those, and also:

* Has a **cascade of option values**:
  * default option values, overridden by
  * config file options, overridden by
  * environment variables, overridden by
  * command-line options.

* Allows one or more **configuration file locations specified on the command line** with e.g. `--config-file foo.conf`, and reads that (either instead of, or additional to, the usual configuration file). This must still obey the above cascade.

* Allows **option definitions in a single place** to determine the parsing behaviour for configuration files and the command line.

* Unifies the parsed options into a **single collection of option values** for the rest of the program to access without caring where they came from.

Everything I need is apparently in the Python standard library, but they don&#39;t work together smoothly.

How can I achieve this with minimum deviation from the Python standard library?


  [1]: http://docs.python.org/3/library/configparser.html
  [2]: http://docs.python.org/3/library/os.html#os.environ
  [3]: http://docs.python.org/3/library/argparse.html

Parse config files, environment, and command-line arguments, to get a single collection of options

This would be question from c# beginner. 
When I create console application I get Main method with parameter **args** as array string.
I do not understand how this method is called by system and how args are passed to the Main method. Maybe someone could explain?  Is Main method are overridden of some kind of console class?

    namespace ConsoleApplication1
    {
        class Program
        {    
            static void Main(string[] args)
            {    
            }
        }
    }

Console app arguments, how arguments are passed to Main method

I am just starting out with Groovy.   I couldn&#39;t find any examples anywhere of how to handle arguments to a Groovy script and so I hacked this method myself.   There must be a better way of doing this?  If so, I am looking for this better way, since I am probably overlooking the obvious.

    import groovy.lang.Binding;
    Binding binding = new Binding();
    int x = 1
    for (a in this.args) {
      println(&quot;arg$x: &quot; + a)
      binding.setProperty(&quot;arg$x&quot;, a);
      x=x+1
    }
    println binding.getProperty(&quot;arg1&quot;)
    println binding.getProperty(&quot;arg2&quot;)
    println binding.getProperty(&quot;arg3&quot;)

Content Type	Original Author	Original Content on Stackoverflow
Question	Joshua Olson	View Question on Stackoverflow
Solution 1 - Xcode	CedricSoubrie	View Answer on Stackoverflow
Solution 2 - Xcode	Merlin	View Answer on Stackoverflow

How do you specify command line arguments in Xcode 4?

Xcode Problem Overview

Xcode Solutions

Solution 1 - Xcode

Solution 2 - Xcode

How to remove lines in a Matplotlib plot

CSS3 equivalent to jQuery slideUp and slideDown?

Attributions