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What does %~d0 mean in a Windows batch file?
...h to the bat-file itself, %1 is the first argument after, %2 is the second and so on.
Since the arguments are often file paths, there is some additional syntax to extract parts of the path. ~d is drive, ~p is the path (without drive), ~n is the file name. They can be combined so ~dp is drive+path.
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How to paginate with Mongoose in Node.js?
I am writing a webapp with Node.js and mongoose. How can I paginate the results I get from a .find() call? I would like a functionality comparable to "LIMIT 50,100" in SQL.
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Long press gesture on UICollectionViewCell
...cognizer alloc]
initWithTarget:self action:@selector(handleLongPress:)];
lpgr.delegate = self;
lpgr.delaysTouchesBegan = YES;
[self.collectionView addGestureRecognizer:lpgr];
}
-(void)handleLongPress:(UILongPressGestureRecognizer *)gestureRecognizer
{
if (gestur...
Difference between author and committer in Git?
... is the person who originally wrote the code. The committer, on the other hand, is assumed to be the person who committed the code on behalf of the original author. This is important in Git because Git allows you to rewrite history, or apply patches on behalf of another person. The FREE online Pro G...
ERROR 1044 (42000): Access denied for user ''@'localhost' to database 'db'
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No, you should run mysql -u root -p in bash, not at the MySQL command-line.
If you are in mysql, you can exit by typing exit.
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What is event bubbling and capturing?
What is the difference between event bubbling and capturing? When should one use bubbling vs capturing?
6 Answers
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Running shell command and capturing the output
I want to write a function that will execute a shell command and return its output as a string , no matter, is it an error or success message. I just want to get the same result that I would have gotten with the command line.
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Are there other whitespace codes like &nbsp for half-spaces, em-spaces, en-spaces etc useful in HTML
...than one space in the font, except for nbsp, where it renders as one space and imposes the non-breaking character. A real shame. There are cases where only a character will do, for instance when padding is being controled or passed to something else with constructs like before:
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Extract a part of the filepath (a directory) in Python
...ath.dirname(os.path.dirname(file)) ## directory of directory of file
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And you can continue doing this as many times as necessary...
Edit: from os.path, you can use either os.path.split or os.path.basename:
dir = os.path.dirname(os.path.dirname(file)) ## dir of dir of file
## once you're at th...
How to check if a process id (PID) exists
...will have a race condition.
If you want to ignore the text output of kill and do something based on the exit code, you can
if ! kill $pid > /dev/null 2>&1; then
echo "Could not send SIGTERM to process $pid" >&2
fi
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