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Test for non-zero length string in Bash: [ -n “$var” ] or [ “$var” ]
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+100
Edit: This is a more complete version that shows more differences between [ (aka test) and [[.
The following table shows that whethe...
Windows threading: _beginthread vs _beginthreadex vs CreateThread C++
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edited Aug 23 '10 at 21:01
John Dibling
91.3k2424 gold badges166166 silver badges296296 bronze badges
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Debugging Scala code with simple-build-tool (sbt) and IntelliJ
... like
-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=5005
Launch sbt with these arguments and then execute jetty-run. Finally, launch your remote debug configuration in IntelliJ. This thread might be useful.
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Python - How to sort a list of lists by the fourth element in each list? [duplicate]
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answered Jul 9 '13 at 18:09
TaymonTaymon
21.1k66 gold badges5656 silver badges7878 bronze badges
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Can I use Objective-C blocks as properties?
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307
@property (nonatomic, copy) void (^simpleBlock)(void);
@property (nonatomic, copy) BOOL (^block...
How can I list ALL DNS records?
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209
When you query for ANY you will get a list of all records at that level but not below.
# try t...
How to add items to a spinner in Android?
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XML file:
<Spinner
android:id="@+id/Spinner01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
Java file:
public class SpinnerExample extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
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postgresql port confusion 5433 or 5432?
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+500
/etc/services is only advisory, it's a listing of well-known ports. It doesn't mean that anything is actually running on that port or...
IIS7 Overrides customErrors when setting Response.StatusCode?
...e.StatusCode to whatever is appropriate. For example, if I make a custom 404 page and name it 404.aspx, I could put <% Response.StatusCode = 404 %> in the contents in order to make it have a true 404 status header.
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