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Clear a terminal screen for real
Using the clear command on the terminal only fools the user into thinking the screen has been cleared...you can still see output from the previous commands when you scroll using the mouse. This makes life difficult when you are drowning in a tsunami of text.
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What is the $$hashKey added to my JSON.stringify result
...zilla JSON stringify page of their docs as well as here on SO and Google but found no explanation. I have used JSOn stringify many time but never come across this result
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MySQL error 1449: The user specified as a definer does not exist
When I run the following query I get an error:
36 Answers
36
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How to comment and uncomment blocks of code in the Office VBA Editor
In the VBA editor of Office ( ALT + F11 ), how do you comment or uncomment a block of code?
9 Answers
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How do I remove the first characters of a specific column in a table?
In SQL, how can I remove the first 4 characters of values of a specific column in a table? Column name is Student Code and an example value is ABCD123Stu1231 .
I want to remove first 4 chars from my table for all records
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Regular expression to find URLs within a string
Does anyone know of a regular expression I could use to find URLs within a string? I've found a lot of regular expressions on Google for determining if an entire string is a URL but I need to be able to search an entire string for URLs. For example, I would like to be able to find www.google.com ...
How to filter logcat in Android Studio?
In my logcat there is too much output, so I'd like to filter it using some keywords, basically displaying only the output containing the keyword(s). Is there a way to do that in Android Studio through the UI?
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How can I see the raw SQL queries Django is running?
Is there a way to show the SQL that Django is running while performing a query?
16 Answers
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Rails server says port already used, how to kill that process?
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Assuming you're looking to kill whatever is on port 3000 (which is what webrick normally uses), type this in your terminal to find out the PID of the process:
$ lsof -wni tcp:3000
Then, use the number in the PID column to kil...
How to force an entire layout View refresh?
I want to force the main layout resource view to redraw / refresh, in say the Activity.onResume() method. How can I do this ?
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