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What is a unix command for deleting the first N characters of a line?
...un essentially that command, 'cut' doesn't print the results to stdout ... if i just run 'tail -f logfile | cut -c 5-' i can see the results ... the problem must be with grep i'm using cygwin FYI thanks
– les2
Jun 9 '09 at 19:15
...
How can I mask a UIImageView?
...geView.layer.mask = mask;
yourImageView.layer.masksToBounds = YES;
For Swift 4 and plus follow code below
let mask = CALayer()
mask.contents = [ UIImage(named: "right_challenge_bg")?.cgImage] as Any
mask.frame = CGRect(x: 0, y: 0, width: leftBGImage.frame.size.width, height: leftBGImage.frame.si...
error: use of deleted function
...have the same value.
It is possible, of course, to create instances with different values though -- you (for example) pass a value when you create the object, so two different objects can have two different values. If, however, you try to do something like swapping them, the const member will retai...
Finding the average of a list
...
if the list is composed of ints, the the result under python 2 will be an int
– mitch
Jan 27 '12 at 21:01
...
curl_exec() always returns false
...nformation in case of failure:
try {
$ch = curl_init();
// Check if initialization had gone wrong*
if ($ch === false) {
throw new Exception('failed to initialize');
}
curl_setopt($ch, CURLOPT_URL, 'http://example.com/');
curl_setopt($ch, CURLOPT_RETURNTRANSFER,...
How to escape the % (percent) sign in C's printf?
... your example:
printf("hello%%");
Escaping '%' sign is only for printf. If you do:
char a[5];
strcpy(a, "%%");
printf("This is a's value: %s\n", a);
It will print: This is a's value: %%
share
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How to remove duplicate white spaces in string using Java?
...
replace it with $1.
Java code:
str = str.replaceAll("(\\s)\\1","$1");
If the input is "foo\t\tbar " you'll get "foo\tbar " as outputBut if the input is "foo\t bar" it will remain unchanged because it does not have any consecutive whitespace characters.
If you treat all the whitespace characte...
jQuery - multiple $(document).ready …?
...emember seeing $(function() { // do stuff }); for the first time, and how difficult it was to Google the explanation? $(document).ready communicates so much more for so little...
– Matt Montag
Oct 15 '13 at 20:19
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Reusing a PreparedStatement multiple times
... // ...
statement.addBatch();
i++;
if (i % 1000 == 0 || i == entities.size()) {
statement.executeBatch(); // Execute every 1000 items.
}
}
}
}
As to the multithreaded environments, you don't need to worry about this if...
store and retrieve a class object in shared preference
...es of data members using shared preference.I want to store it as an object.If not shared preference what are my other options?
– androidGuy
Mar 24 '11 at 11:25
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