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What does git rev-parse do?
...that I've used for:
--verify to verify that the specified object is a valid git object.
--git-dir for displaying the abs/relative path of the the .git directory.
Checking if you're currently within a repository using --is-inside-git-dir or within a work-tree using --is-inside-work-tree
Checking if...
What are file descriptors, explained in simple terms?
...e maintained, where first one is per-process and the second one is system wide. FD in per-process table (i.e fdtable) is not unique system wide. However it maps to v-node table that contains the system wide unique entries. So when you call fopen() and fileno() function to check the descriptor then y...
Is there an equivalent to background-size: cover and contain for image elements?
...r; on the img .
body {
margin: 0;
}
img {
display: block;
width: 100vw;
height: 100vh;
object-fit: cover;
}
<img src="http://lorempixel.com/1500/1000" />
See MDN - regarding object-fit: cover:
The replaced content is sized to maintain its aspect ratio while
...
How to encode the filename parameter of Content-Disposition header in HTTP?
...is the code I currently use. I still have to support IE8, so I cannot get rid of the first part. It turns out that browsers on Android use the built in Android download manager and it cannot reliably parse file names in the standard way.
string contentDisposition;
if (Request.Browser.Browser == "IE...
Swift alert view with OK and Cancel: which button tapped?
...
anyone knows how to add accessibility id to "ok" and "cancel" actions
– Kamaldeep singh Bhatia
Nov 7 '17 at 11:21
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How to read the mode field of git-ls-tree's output
...IX notations.
First two digits show file type, the third one is about set-uid/set-gid/sticky bits, and you know the last three.
Here is how man 2 stat documents it on my GNU/Linux system:
The following flags are defined for the st_mode field:
S_IFMT 0170000 bit mask for the file t...
SSL certificate rejected trying to access GitHub over HTTPS behind firewall
...
Hi ptillemans! You've successfully authenticated, but GitHub does not provide shell access.
Connection to github.com closed.
pti@pti-laptop:~$
(Note: if you never logged in to github before, ssh will be asking to add the server key to the known hosts file. If you are paranoid, it is recomm...
libcurl的使用总结 - C/C++ - 清泛网 - 专注C/C++及内核技术
...库。
CURL_GLOBAL_NOTHING //没有额外的初始化。
2）void curl_global_cleanup(void);
描述：在结束libcurl使用的时候，用来对curl_global_init做的工作清理。类似于close的函数。
3.char *curl_version( );
描述: 打印当前libcurl库的版本。
4）CURL ...
What's the difference between integer class and numeric class in R
...integers if you know that they will never be converted to doubles (used as ID values or indexing) since integers require less storage space. But if they are going to be used in any math that will convert them to double, then it will probably be quickest to just store them as doubles to begin with.
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How can I use Google's Roboto font on a website?
...
Using Google's fonts this way guarantees availability, and reduces bandwidth to your own server.
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