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How can I get the current user's username in Bash?
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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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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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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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Get the first item from an iterable that matches a condition
...the only argument.
I see most answers resolutely ignore the next built-in and so I assume that for some mysterious reason they're 100% focused on versions 2.5 and older -- without mentioning the Python-version issue (but then I don't see that mention in the answers that do mention the next built-in...
What is the exact difference between currentTarget property and target property in javascript
Can anyone please tell me the exact difference between currentTarget and target property in Javascript events with example and which property is used in which scenario?
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How to log PostgreSQL queries?
...t the log_directory directory already exists inside of the data directory, and that the postgres user can write to it.
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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">
... // ...
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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How can I ssh directly to a particular directory?
I often have to login to one of several servers and go to one of several directories on those machines. Currently I do something of this sort:
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