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libcurl的使用总结 - C/C++ - 清泛网 - 专注C/C++及内核技术
...所有的curl 程序都要频繁的使用它.它告诉curl库.程序将有如何的行为. 比如要查看一个网页的html代码等.(这个函数有些像ioctl函数)参数:
1 CURL类型的指针
2 各种CURLoption类型的选项.(都在curl.h库里有定义,man 也可以查看到)
3 parameter...
What is /dev/null 2>&1?
...Command ls -l /dev/null will give you details of this file:
crw-rw-rw-. 1 root root 1, 3 Mar 20 18:37 /dev/null
Did you observe crw? Which means it is a pseudo-device file which is of character-special-file type that provides serial access.
/dev/null accepts and discards all input; produces n...
How to tell if a file is git tracked (by shell exit code)?
...results(logs). Else it is empty.
For example if the file is git tracked,
root@user-ubuntu:~/project-repo-directory# git log src/../somefile.js
commit ad9180b772d5c64dcd79a6cbb9487bd2ef08cbfc
Author: User <someone@somedomain.com>
Date: Mon Feb 20 07:45:04 2017 -0600
fix eslint indentat...
Making the main scrollbar always visible
...g html a bit hack-y, note that you can use the structural pseudo-selector :root instead of html. See: developer.mozilla.org/en-US/docs/Web/CSS/:root
– Rounin
Feb 22 '18 at 13:31
...
Python: Best way to add to sys.path relative to the current running script
...at if the script being runned from a different directory? for example from root directory by giving the full system path? then os.getcwd() will return "/"
– obayhan
Oct 12 '19 at 12:14
...
How do I 'git diff' on a certain directory?
...ish defaults to HEAD (where you are at now) and [path] defaults to the git root directory, but can be anything relative to your current directory. Without the --, git will guess what you mean, [commit-ish] or [path]. In some cases, this causes git to say the notation is 'ambiguous'. If I remember co...
Which Python memory profiler is recommended? [closed]
...forge.net/tracker/…, pip install https://guppy-pe.svn.sourceforge.net/svnroot/guppy-pe/trunk/guppy
– James Snyder
Jan 3 '12 at 20:06
...
For i = 0, why is (i += i++) equal to 0?
... x is evaluated to produce the variable.
The value of x is saved.
The selected operator is invoked with the saved value of x as its argument.
The value returned by the operator is stored in the location given by the evaluation of x.
The saved value of x becomes the result of the operation.
...
One line ftp server in python
...tions:
-p, --port= set the port number [default: 2121]
-r, --root= define the root of the ftp-site. [default:
/usr/local/ftp]
--userAnonymous= Name of the anonymous user. [default: anonymous]
--password-file= username:password-style credentials datab...
Code coverage for Jest
...After executing jest, you can get coverage report on console and under the root folder set by jest, you will find the coverage report in json and html format.
4) FYI, if you install from npm, you might not get the latest version; so try the github first and make sure the coverage is what you need.
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