     version=$(java -version 2&gt;&amp;1)

The version param only takes one dash, and if you redirect stderr, which is, where the message is written to, you&#39;ll get the desired result.

As a sidenote, using two dashes is an inofficial standard on Unix like systems, but since Java tries to be almost identical over different platforms, it violates the Unix/Linux-expectations and behaves the same in this regard as on windows, and as I suspect, on Mac OS. 

That is because `java -version` writes to `stderr` and not `stdout`. You should use:

    version=$(java -version 2&gt;&amp;1)

In order to redirect `stderr` to `stdout`.

You can see it by running the following 2 commands:

    java -version &gt; /dev/null

    java -version 2&gt; /dev/null

Is there a way to extract the values of the fitted line returned from stat_smooth?

The code I am using looks like this:

    p &lt;- ggplot(df1, aes(x=Days, y= Qty,group=Category,color=Category))
    p &lt;- p + stat_smooth(method=glm, fullrange=TRUE)+ geom_point())

This new r user would greatly appreciate any guidance.



Method to extract stat_smooth line fit

Can anyone out there help me understand what **Linearizability** is?  I need an explanation that is simple and easy to understand.  I&#39;m reading *The Art of Multiprocessor Programming* by Maruice Herilihy and Nir Shavit and am trying to understand Chapter 3 about Concurrent Objects.

I understand that a method is Linearizable if it has a point where it seems to &quot;take effect&quot; instantaneously from the point of view of the other threads.  That makes sense, but it is also said that Linearizability is actually a property of the execution history.  What does it mean for an execution history to be Linearizable, why do I care, and how does it relate to a method or object being Linearizable?

Thank you!

What is &quot;Linearizability&quot;?

I have a problem concerning storing the output of a command inside a variable within a bash script.  
I know in general there are two ways to do this

either

    foo=$(bar)
    # or
    foo=`bar`

but for the Java version query, this doesn&#39;t seem to work.

I did:

    version=$(java --version)

This doesn&#39;t store the value inside the var. It even still prints it, which really shouldn&#39;t be the case.

I also tried redirecting output to a file but this also fails.

Bash script store command output into variable

I have a problem concerning storing the output of a command inside a variable within a bash script. 
I know in general there are two ways to do this
either
<pre><code class="hljs language-ini">foo=$(bar)
# or
foo=`bar`
</code></pre>
but for the Java version query, this doesn't seem to work.
I did:
<pre><code class="hljs language-ini">version=$(java --version)
</code></pre>
This doesn't store the value inside the var. It even still prints it, which really shouldn't be the case.
I also tried redirecting output to a file but this also fails.

Lets say I have a shell / bash script named `test.sh` with:

    #!/bin/bash
    
    TESTVARIABLE=hellohelloheloo
    ./test2.sh

My `test2.sh` looks like this:


    #!/bin/bash
    
    echo ${TESTVARIABLE}

This does not work. I do not want to pass all variables as parameters since imho this is overkill.

Is there a different way?

Pass all variables from one shell script to another?

I would like to execute a number of `bash` commands from a `Rakefile`.

I have tried the following in my `Rakefile` 

    task :hello do
      %{echo &quot;World!&quot;}
    end

but upon executing `rake hello` there is no output?
How do I execute bash commands from a Rakefile?


**NOTE**:This is not a duplicate as it&#39;s specifically asking how to execute bash commands from a _Rakefile_.

Execute bash commands from a Rakefile

I have been developing a script on my linux box for quite some time, and wanted to run it on my Mac as well.

I thought that the functions on the Mac were the same as the functions on linux, but today I realized it was wrong. I knew that fewer functions existed on the Mac, but I thought that the functions that did exist, had the same implementation.

This problem is specifically in regards to the `date` command.

When I run the command on my linux machine with the parameter to provide some time in nanoseconds, I get the correct result, but when I run it on my mac, it does not have that option.
   
    Linux-Machine&gt; date +%N
    55555555555 #Current time in nanoseconds
    Mac-Machine&gt; date +%N
    N

How do I go about getting the current time in nanoseconds as a bash command on the Mac?

Worst case is I create a small piece of code that calls a system function in C or something and then call it within my script.

Any help is much appreciated!

Date command does not follow Linux specifications (Mac OS X Lion)


    find . -type f | xargs file | grep text | cut -d&#39;:&#39; -f1 | xargs grep -l &quot;TEXTSEARCH&quot; {}

it&#39;s a good solution? for find TEXTSEARCH recursively in only textual files

grep only text files

If I have a text file with a separate command on each line how would I make terminal run each line as a command? I just don&#39;t want to have to copy and paste 1 line at a time. It doesn&#39;t HAVE to be a text file... It can be any kind of file that will work.

`example.txt`:
    
    sudo command 1
    sudo command 2
    sudo command 3

Run text file as commands in Bash

    SET @v1 := SELECT COUNT(*) FROM user_rating;
    SELECT @v1

When I execute this query with `set` variable this error is shown.

    Error Code : 1064
    You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use
    near &#39;SELECT count(*) FROM user_rating&#39; at line 1

    Execution Time : 00:00:00:000
    Transfer Time  : 00:00:00:000
    Total Time     : 00:00:00:000

    (1 row(s) returned)
    Execution Time : 00:00:00:343
    Transfer Time  : 00:00:00:000
    Total Time     : 00:00:00:343

How to store Query Result in variable using mysql

I am looking for a clean way to use variables within a multiline Python string. Say I wanted to do the following:

    string1 = go
    string2 = now
    string3 = great

    &quot;&quot;&quot;
    I will $string1 there
    I will go $string2
    $string3
    &quot;&quot;&quot;

I&#39;m looking to see if there is something similar to `$` in Perl to indicate a variable in the Python syntax.

If not - what is the cleanest way to create a multiline string with variables?

How do I create a multiline Python string with inline variables?

I would like to get the SRC attribute into a variable in this example:

    &lt;img border=&quot;0&quot; src=&quot;/images/image.jpg&quot; alt=&quot;Image&quot; width=&quot;100&quot; height=&quot;100&quot; /&gt;

So for example - I would like to get a variable `$foo = &quot;/images/image.jpg&quot;`.
Important! The src attribute will be **dynamic**, so it mustn&#39;t be hardcoded.
Is there any quick and easy way to do this?

Thanks!

EDIT: The image will be a part of a huge string that is basically the content of a news story. So the image is just a part of that.

EDIT2: There will be more images in this string, and I would only want to get the src of the first one. Is this possible?

Get img src with PHP

      
How can I use a variable to remove all instances of a substring from a string?
(to remove, I&#39;m thinking the best way is to replace, with nothing, globally... right?)

if I have these 2 strings,  

    myString = &quot;This sentence is an example sentence.&quot;
    oldWord = &quot; sentence&quot;

then something like this

    myString.replace(oldWord, &quot;&quot;);
only replaces the first instance of the variable in the string.

but if I add the global g like this `myString.replace(/oldWord/g, &quot;&quot;);` it doesn&#39;t work, because it thinks oldWord, in this case, is the substring, not a variable. How can I do this with the variable?

myString.replace( VARIABLE, &quot;&quot;) ...... but globally

I am a beginner to assembly and I don&#39;t know what all the db, dw, dd, things mean.
I have tried to write this little script that does 1+1, stores it in a variable and then displays the result. Here is my code so far:

    .386
    .model flat, stdcall 
    option casemap :none
    include \masm32\include\windows.inc
    include \masm32\include\kernel32.inc
    include \masm32\include\masm32.inc
    includelib \masm32\lib\kernel32.lib
    includelib \masm32\lib\masm32.lib
    .data
    num db ? ; set variable . Here is where I don&#39;t know what data type to use.
    .code
    start:
    mov eax, 1               ; add 1 to eax register
    mov ebx, 1               ; add 1 to ebx register
    add eax, ebx             ; add registers eax and ebx
    push eax                 ; push eax into the stack
    pop num                  ; pop eax into the variable num (when I tried it, it gave me an error, i think  thats because of the data type)
    invoke StdOut, addr num  ; display num on the console.
    invoke ExitProcess       ; exit
    end start

I need to understand what the db, dw, dd things mean and how they affect variable setting and combining and that sort of thing.

Thanks in advance,
Progrmr 

Which variable size to use (db, dw, dd) with x86 assembly?

I am trying to understand how Java stores integer internally. I know all java primitive integers are signed, (except short?). That means one less bit available in a byte for the number.

My question is, are all integers (positive and negative) stored as two&#39;s complement or are only negative numbers in two&#39;s complement?

I see that the specs says `x bit two&#39;s complement number`. But I often get confused.

For instance:

      int x = 15; // Stored as binary as is?  00000000 00000000 00000000 00001111?
      int y = -22; // Stored as two complemented value? 11111111 11111111 11111111 11101010

**Edit**

To be clear, `x = 15` 

       In binary as is: `00000000 00000000 00000000 00001111&#39;
      Two&#39;s complement: `11111111 11111111 11111111 11110001`

So if your answer is  `all` numbers are stored as two&#39;s complement then:

      int x = 15; // 11111111 11111111 11111111 11110001
      int y = -22 // 11111111 11111111 11111111 11101010

The confusion here again is the sign says, both are negative numbers. May be I am misreading / misunderstanding it?

**Edit**
Not sure my question is confusing. Forced to isolate the question:

**My question precisely: Are positive numbers stored in `binary as is` while negative numbers are stored as `two&#39;s complement`?**

Some said all are stored in two&#39;s complement and one answer says only negative numbers are stored as two&#39;s complement.

How are integers internally represented at a bit level in Java?

I have a Swift project that uses a ObjC dynamic framework, the framework had to be linked with and embedded into my project. The project runs OK in devices, when submitted to App Store, the error occurred during validation:
`Found an unexpected Mach-O header code: 0x72613c21`

Below are the validation logs:

    2015-10-12 02:32:33 +0000 [MT] Beginning distribution assistant for archive: MusicFans, task: Validate
    2015-10-12 02:32:33 +0000 [MT] Automatically selecting the only availaable distribution method &lt;IDEDistributionMethodiOSAppStoreValidation: 0x7f851c1d96c0&gt;
    2015-10-12 02:32:34 +0000 [MT] [OPTIONAL] Didn&#39;t find archived user entitlements for &lt;DVTFilePath:0x7f851b42db10:&#39;/Users/panzhansheng/Library/Developer/Xcode/Archives/2015-10-11/MusicFans 11-10-15 上午8.29.xcarchive/Products/Applications/MusicFans.app/Frameworks/libswiftDispatch.dylib&#39;&gt;: Error Domain=NSCocoaErrorDomain Code=4 &quot;Item at &quot;/Users/panzhansheng/Library/Developer/Xcode/Archives/2015-10-11/MusicFans 11-10-15 上午8.29.xcarchive/Products/Applications/MusicFans.app/Frameworks/libswiftDispatch.dylib&quot; did not contain a &quot;archived-expanded-entitlements.xcent&quot; resource.&quot; UserInfo={NSLocalizedDescription=Item at &quot;/Users/panzhansheng/Library/Developer/Xcode/Archives/2015-10-11/MusicFans 11-10-15 上午8.29.xcarchive/Products/Applications/MusicFans.app/Frameworks/libswiftDispatch.dylib&quot; did not contain a &quot;archived-expanded-entitlements.xcent&quot; resource.}
    2015-10-12 02:32:34 +0000 [MT] [OPTIONAL] Didn&#39;t find archived user entitlements for &lt;DVTFilePath:0x7f8529a08050:&#39;/Users/panzhansheng/Library/Developer/Xcode/Archives/2015-10-11/MusicFans 11-10-15 上午8.29.xcarchive/Products/Applications/MusicFans.app/wavpack.framework&#39;&gt;: Error Domain=NSCocoaErrorDomain Code=4 &quot;Item at &quot;/Users/panzhansheng/Library/Developer/Xcode/Archives/2015-10-11/MusicFans 11-10-15 上午8.29.xcarchive/Products/Applications/MusicFans.app/wavpack.framework&quot; did not contain a &quot;archived-expanded-entitlements.xcent&quot; resource.&quot; UserInfo={NSLocalizedDescription=Item at &quot;/Users/panzhansheng/Library/Developer/Xcode/Archives/2015-10-11/MusicFans 11-10-15 上午8.29.xcarchive/Products/Applications/MusicFans.app/wavpack.framework&quot; did not contain a &quot;archived-expanded-entitlements.xcent&quot; resource.}
    2015-10-12 02:32:34 +0000 [MT] [OPTIONAL] Didn&#39;t find archived user entitlements for &lt;DVTFilePath:0x7f850da13de0:&#39;/Users/panzhansheng/Library/Developer/Xcode/Archives/2015-10-11/MusicFans 11-10-15 上午8.29.xcarchive/Products/Applications/MusicFans.app/FLAC.framework&#39;&gt;: Error Domain=NSCocoaErrorDomain Code=4 &quot;Item at &quot;/Users/panzhansheng/Library/Developer/Xcode/Archives/2015-10-11/MusicFans 11-10-15 上午8.29.xcarchive/Products/Applications/MusicFans.app/FLAC.framework&quot; did not contain a &quot;archived-expanded-entitlements.xcent&quot; resource.&quot; UserInfo={NSLocalizedDescription=Item at &quot;/Users/panzhansheng/Library/Developer/Xcode/Archives/2015-10-11/MusicFans 11-10-15 上午8.29.xcarchive/Products/Applications/MusicFans.app/FLAC.framework&quot; did not contain a &quot;archived-expanded-entitlements.xcent&quot; resource.}
    2015-10-12 02:33:07 +0000 [MT] Canceled distribution assistant

If I remove the dynamic framework from the project’s Embedded frameworks section, then it can pass the validation, but crashes when run in devices due to the missing image of my dynamic framework, any idea?
BTW, dynamic framework has bitcode disabled, so my project also disables bitcode, and is not codesigned.




Found an unexpected Mach-O header code: 0x72613c21 in Xcode 7

I am using Redux for state management.  
How do I reset the store to its initial state?

For example, let’s say I have two user accounts (`u1` and `u2`).  
Imagine the following sequence of events:

1. User `u1` logs into the app and does something, so we cache some data in the store.

2. User `u1` logs out.

3. User `u2` logs into the app without refreshing the browser.

At this point, the cached data will be associated with `u1`, and I would like to clean it up.

**How can I reset the Redux store to its initial state when the first user logs out?**

How to reset the state of a Redux store?

I want to publish the app to Play Store. But when reviewing the release I got an error like this. But there is no solution or documentation to read more about the error.

![enter image description here][1]


  [1]: https://i.stack.imgur.com/5JHRZ.png

Content Type	Original Author	Original Content on Stackoverflow
Question	user1278282	View Question on Stackoverflow
Solution 1 - Bash	user unknown	View Answer on Stackoverflow
Solution 2 - Bash	Eran Ben-Natan	View Answer on Stackoverflow

Bash script store command output into variable

Bash Problem Overview

Bash Solutions

Solution 1 - Bash

Solution 2 - Bash

What is "Linearizability"?

Method to extract stat_smooth line fit

Attributions