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How to fix 'sudo: no tty present and no askpass program specified' error?
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Granting the user to use that command without prompting for password should resolve the problem. First open a shell console and type:
sudo visudo
Then edit that file to add to the very end:
username ALL = NOPASSWD: /fullpath/to/command, /fullpath/to/othercomma...
Regex to get string between curly braces
Unfortunately, despite having tried to learn regex at least one time a year for as many years as I can remember, I always forget as I use them so infrequently. This year my new year's resolution is to not try and learn regex again - So this year to save me from tears I'll give it to Stack Overflow ...
How do you check if a JavaScript Object is a DOM Object?
..."object") &&
(typeof obj.ownerDocument ==="object");
}
}
It's part of the DOM, Level2.
Update 2: This is how I implemented it in my own library:
(the previous code didn't work in Chrome, because Node and HTMLElement are functions instead of the expected object. This code is tested...
Dynamically select data frame columns using $ and a character value
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You can't do that kind of subsetting with $. In the source code (R/src/main/subset.c) it states:
/*The $ subset operator.
We need to be sure to only evaluate the first argument.
The second will be a symbol that needs to be matched, not evaluated.
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Best database field type for a URL
...table. What's the best practice for defining a field that will hold a URL with an undetermined length?
10 Answers
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Convert Bitmap to File
I understand that using BitmapFactory can convert a File to a Bitmap, but is there any way to convert a Bitmap image to a File?
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How do I implement an Objective-C singleton that is compatible with ARC?
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In exactly the same way that you (should) have been doing it already:
+ (instancetype)sharedInstance
{
static MyClass *sharedInstance = nil;
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
sharedInstance = [[MyClass alloc] init];
// Do...
Http长连接200万尝试及调优 - 更多技术 - 清泛网 - 专注C/C++及内核技术
... 23.5GB / 24GB 1333MHz == 6 x 4GB, 12 x empty
Disk-Control: megaraid_sas0: Dell/LSILogic PERC 6/i, Package 6.2.0-0013, FW 1.22.02-0612,
Network: eth0 (bnx2):Broadcom NetXtreme II BCM5709 Gigabit Ethernet,1000Mb/s
OS: RHEL Server 5.4 (Tikanga), Linux 2.6.18-164.el5 x86...
How to count total number of watches on a page?
...);
};
f(root);
// Remove duplicate watchers
var watchersWithoutDuplicates = [];
angular.forEach(watchers, function(item) {
if(watchersWithoutDuplicates.indexOf(item) < 0) {
watchersWithoutDuplicates.push(item);
}
});
console.log(watchers...
SQL Switch/Case in 'where' clause
...elow, you formed the SQL incorrectly. I tested mine in SQLServer 2005 and it worked fine.
– Bob Probst
Oct 16 '08 at 0:48
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