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In the shell, what does “ 2>&1 ” mean?
In a Unix shell, if I want to combine stderr and stdout into the stdout stream for further manipulation, I can append the following on the end of my command:
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Why use a ReentrantLock if one can use synchronized(this)?
I'm trying to understand what makes the lock in concurrency so important if one can use synchronized (this) . In the dummy code below, I can do either:
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How do I use vim registers?
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Registers in Vim let you run actions or commands on text stored within them. To access a register, you type "a before a command, where a is the name of a register. If you want to copy the current line into register k, you can type
"kyy
Or you can append to a regis...
Is it possible to capture a Ctrl+C signal and run a cleanup function, in a “defer” fashion?
I want to capture the Ctrl+C ( SIGINT ) signal sent from the console and print out some partial run totals.
10 Answers
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Clear the entire history stack and start a new activity on Android
...I lvl <= 10, I haven't yet found a clean solution to this.
The "DontHackAndroidLikeThis" solution is indeed pure hackery. You should not do that. :)
Edit:
As per @Ben Pearson's comment, for API <=10 now one can use IntentCompat class for the same. One can use IntentCompat.FLAG_ACTIVITY_CLEAR_T...
How to step through Python code to help debug issues?
...va/C# you can easily step through code to trace what might be going wrong, and IDE's make this process very user friendly.
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CSS/HTML: What is the correct way to make text italic?
...does not correspond to what HTML5 drafts actually say – which is obscure and varies by version, but no version suggests using i for book, song, album, or movie names (which would, debatably, be candidates for using cite).
– Jukka K. Korpela
Sep 1 '14 at 13:04...
Decimal precision and scale in EF Code First
... changes, from EF 4.1 onwards the ModelBuilder class is now DbModelBuilder and there is now a DecimalPropertyConfiguration.HasPrecision Method which has a signature of:
public DecimalPropertyConfiguration HasPrecision(
byte precision,
byte scale )
where precision is the total number of digits the...
What is the difference between svg's x and dx attribute?
What is the difference between svg's x and dx attribute (or y and dy)? When would be a proper time to use the axis shift attribute (dx) versus the location attribute (x)?
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What do commas and spaces in multiple classes mean in CSS?
Here is an example that I do not understand:
9 Answers
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