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Match two strings in one line with grep
I am trying to use grep to match lines that contain two different strings. I have tried the following but this matches lines that contain either string1 or string2 which not what I want.
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What is the difference between JVM, JDK, JRE & OpenJDK?
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JVM
The Java Virtual Machine (JVM) is the virtual machine that runs the Java bytecodes. The JVM doesn't understand Java source code; that's why you need compile your *.java files to obtain *.class files that contain the bytecodes understood by the JV...
How are software license keys generated?
...cto-standard as an anti-piracy measure. To be honest, this strikes me as (in)Security Through Obscurity , although I really have no idea how license keys are generated. What is a good (secure) example of license key generation? What cryptographic primitive (if any) are they using? Is it a message d...
Refreshing OAuth token using Retrofit without modifying all calls
We are using Retrofit in our Android app, to communicate with an OAuth2 secured server. Everything works great, we use the RequestInterceptor to include the access token with each call.
However there will be times, when the access token will expire, and the token needs to be refreshed. When the toke...
Pros and cons to use Celery vs. RQ [closed]
Currently I'm working on python project that requires implement some background jobs (mostly for email sending and heavily database updates). I use Redis for task broker. So in this point I have two candidates: Celery and RQ . I had some experience with these job queues, but I want to ask you guy...
Replacing NULL with 0 in a SQL server query
I have developed a query, and in the results for the first three columns I get NULL . How can I replace it with 0 ?
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Python Empty Generator Function
In python, one can easily define an iterator function, by putting the yield keyword in the function's body, such as:
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AngularJS : automatically detect change in model
Suppose I wanted to do something like automatically run some code (like saving data to a server) whenever a model's values change. Is the only way to do this by setting something like ng-change on each control that could possibly alter the model?
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How to cancel an $http request in AngularJS?
Given a Ajax request in AngularJS
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