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Unable to create/open lock file: /data/mongod.lock errno:13 Permission denied
...irectory.
Then I ran sudo service mongodb start and waited about a minute. If you try to connect to 27017 immediately you won't be able to.
After a minute check /data/db (EBS volume) and mongo should have placed a journal, mongod.lock, local.ns, local.0, etc. If not try sudo service mongodb restart ...
CSS: How to have position:absolute div inside a position:relative div not be cropped by an overflow:
...osition: absolute;
z-index: 1;
overflow: hidden;
}
Take in mind that if you only have to clip content on the x axis (which appears to be your case, as you only have set the div's width), you can use overflow-x: hidden.
...
iOS 7 TextKit - How to insert images inline with text?
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@bilobatum's code converted to Swift for those in need:
let attributedString = NSMutableAttributedString(string: "like after")
let textAttachment = NSTextAttachment()
textAttachment.image = UIImage(named: "whatever.png")
let attrStringWithImage = NSAttri...
Resource interpreted as stylesheet but transferred with MIME type text/html (seems not related with
...bunch of headers and a (sometimes optional) body with some content in it.
If there is a body, then one of the headers is the Content-Type which describes what the body is (is it an HTML document? An image? The contents of a form submission? etc).
When you ask for your stylesheet, your server is te...
combinations between two lists?
...
Note: This answer is for the specific question asked above. If you are here from Google and just looking for a way to get a Cartesian product in Python, itertools.product or a simple list comprehension may be what you are looking for - see the other answers....
Get file name from URI string in C#
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You can just make a System.Uri object, and use IsFile to verify it's a file, then Uri.LocalPath to extract the filename.
This is much safer, as it provides you a means to check the validity of the URI as well.
Edit in response to comment:
To get just the full filename, I'd use:
...
C语言结构体里的成员数组和指针 - c++1y / stl - 清泛IT社区，为创新赋能！
...ain(int argc, char** argv) {
struct foo f={0};
if (f.a->s) {
printf( f.a->s);
}
return 0;
}复制代码
你编译一下上面的代码，在VC++和GCC下都会在14行的printf处crash掉你的程序...
ASP.NET “special” tags
...trol" %>).
<%@ %> is also an Application Directive. Used to specify application-specific settings for global.asax. Distinct from the page directives as it only uses a different tag set.
<% %> is a Code Render Block (for inline code). One of 4 forms of Embedded Code Blocks. Used for...
How to reload apache configuration for a site without restarting apache
...s send SIGHUP which is equivalent to 'apachectl restart', which the OP specifically asked to avoid. Other Apache init scripts send SIGUSR1 which is equivalent to 'apachectl graceful', which is also a restart, but done more gracefully, and is what Aruman's answer provides.
– Br...
What does tree-ish mean in Git?
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The Short Answer (TL;DR)
"Tree-ish" is a term that refers to any identifier (as specified in the Git
revisions documentation) that ultimately leads to a (sub)directory
tree (Git refers to directories as "trees" and "tree objects").
In the original poster's case, foo is a directory that he want...