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How to activate virtualenv?
...and venv folders. then run the below command, This is one worked for me in Ubuntu.
source venv/bin/activate
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Why is transposing a matrix of 512x512 much slower than transposing a matrix of 513x513?
...an Grigore One of my friends tells me that his Intel core i3 pc running on Ubuntu 11.04 i386demonstrates almost the same performance with gcc 4.6.And so is the same for my computer Intel Core 2 Duo with mingw gcc4.4,who's running on windows 7(32).It does show a big difference when I compile this se...
How can I get the current stack trace in Java?
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On android a far easier way is to use this:
import android.util.Log;
String stackTrace = Log.getStackTraceString(exception);
How do I get the file name from a String containing the Absolute file path?
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How come it doesn't exist on Android? weird.
– android developer
Sep 9 '14 at 22:13
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Extracting .jar file with command line
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In Ubuntu:
unzip file.jar -d dir_name_where_extracting
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Convert JSON String to Pretty Print JSON output using Jackson
...pass the 4(indentSpaces) in toString() method.
Note: It works fine in the android without any library. But in java you have to use the org.json library.
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scp (secure copy) to ec2 instance without password
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scp -i /Users/Username/Downloads/myfile.pem -r ubuntu@my.ect.id.amazonaws.com:~/ ~/Desktop/ in case u want to transfer file from server to local
– Yatender Singh
Mar 28 '16 at 7:29
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Is there a way to delete a line in Visual Studio without cutting it?
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Correction in my answer
Ubuntu 16 &
Visual studio Version: 1.30.1
To cut line
Shift + del
To delete line Shift + Ctrl + k
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Unable to locate tools.jar
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In ubuntu: # apt-get install default-jdk and the error disappears.
– Xavi Montero
Feb 19 '15 at 19:23
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How to resolve “You need to have Ruby and Sass installed and in your PATH for this task to work” War
... sudo apt-get install ruby-compass : seems to install both on Ubuntu - Ruby wasn't installed in my case
– myol
Oct 15 '14 at 21:00
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