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How can I get the current user's username in Bash?
...
On the command line, enter
whoami
or
echo "$USER"
To save these values to a variable, do
myvariable=$(whoami)
or
myvariable=$USER
Of course, you don't need to make a variable since that is what the $USER variable is for.
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How do I increase the cell width of the Jupyter/ipython notebook in my browser?
...th of the ipython notebook in my browser. I have a high-resolution screen, and I would like to expand the cell width/size to make use of this extra space.
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multiprocessing: sharing a large read-only object between processes?
...ng share objects created earlier in the program?"
No (python before 3.8), and Yes in 3.8 (https://docs.python.org/3/library/multiprocessing.shared_memory.html#module-multiprocessing.shared_memory)
Processes have independent memory space.
Solution 1
To make best use of a large structure with lots...
Getting the exception value in Python
... printing it out, it's for an end user that doesn't care what the class is and just wants an error message.
It really depends on the class of exception that you are dealing with and how it is instantiated. Did you have something in particular in mind?
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How can I decrease the size of Ratingbar?
...g you're using Material Design in your app).
Option 1:
<RatingBar
android:id="@+id/ratingBar"
style="?android:attr/ratingBarStyleSmall"
... />
Option 2:
// styles.xml
<style name="customRatingBar"
parent="android:style/Widget.Material.RatingBar.Small">
... // ...
Write a program that will surely go into deadlock [closed]
...Here's an example in C#. Note that the program appears to contain no locks and no shared data. It has only a single local variable and three statements, and yet it deadlocks with 100% certainty. One would be hard-pressed to come up with a simpler program that deadlocks with certainty.
Exercise to t...
Sign APK without putting keystore info in build.gradle
I am trying to setup signing process so that keystore password and key password are not stored in the project's build.gradle file.
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Android Facebook integration with invalid key hash
... is wrong. You may get the hash key using two steps.
One is through a command prompt. Another one is through coding. The hash key through a command prompt is working on the first time only. I don't know the reason. I have also got the same problem. So I tried it through programmatically.
Follow th...
Which annotation should I use: @IdClass or @EmbeddedId
...fication has 2 different ways to specify entity composite keys: @IdClass and @EmbeddedId .
7 Answers
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Using Regex to generate Strings rather than match them
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I am not sure Xeger is that good. It cannot handle character classes. It fails to recognize a simple [\w]. A look at the last line of their wiki tells us that.
– John Red
Feb 13 '17 at 12:38
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