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How to fix 'sudo: no tty present and no askpass program specified' error?
...
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/othercommand
eg
john ALL...
How do I check if file exists in jQuery or pure JavaScript?
...function()
{
//file exists
}
});
EDIT:
Here is the code for checking 404 status, without using jQuery
function UrlExists(url)
{
var http = new XMLHttpRequest();
http.open('HEAD', url, false);
http.send();
return http.status!=404;
}
Small changes and it could che...
Select 50 items from list at random to write to file
...use xrange as an argument.
This is especially fast and space efficient for sampling from a
large population: sample(xrange(10000000), 60)
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UTF-8 all the way through
...xplicit character set).
In older versions of MySQL (< 5.5.3), you'll unfortunately be forced to use simply utf8, which only supports a subset of Unicode characters. I wish I were kidding.
Data Access:
In your application code (e.g. PHP), in whatever DB access method you use, you'll need to s...
What's the difference between MyISAM and InnoDB? [duplicate]
I understand that this question has been asked before, but most of the time it is asked in relation to a specific database or table. I cannot find an answer on this site that describes the two engines and their differences without respect to someones specific database.
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How to get std::vector pointer to the raw data?
...nd that proxy can't be implicitly converted to a bool*. As the workaround for this, if you do need a sequence of bool, it's best just to use a std::vector<char>. @Motti
– James McNellis
Jun 26 '11 at 23:38
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How do you uninstall all dependencies listed in package.json (NPM)?
...ch into the folder that has your package.json file and run the following:
for package in `ls node_modules`; do npm uninstall $package; done;
In the case of globally-installed packages, switch into your %appdata%/npm folder (if on Windows) and run the same command.
EDIT: This command breaks with ...
Warning the user/local/mysql/data directory is not owned by the mysql user
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for others coming to this now.. this works in El Capitan as well
– John Ruddell
Oct 28 '15 at 22:01
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How can I do test setup using the testing package in Go
How can I do overall test setup processing which sets the stage for all the tests when using the testing package ?
6 Answe...
How to replace a character with a newline in Emacs?
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M-x replace-string RET ; RET C-q C-j.
C-q for quoted-insert,
C-j is a newline.
Cheers!
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