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How to test an Internet connection with bash?
...
Without ping
#!/bin/bash
wget -q --spider http://google.com
if [ $? -eq 0 ]; then
echo "Online"
else
echo "Offline"
fi
-q : Silence mode
--spider : don't get, just check page availability
$? : shell return code
0 : shell "All OK" code
Without wget
#!/bin/bash
echo...
How do you clone a Git repository into a specific folder?
Executing the command git clone git@github.com:whatever creates a directory in my current folder named whatever , and drops the contents of the Git repository into that folder:
...
How to replace plain URLs with links?
...ur own regexp to parse URLs is a terrible idea. You must imagine this is a common enough problem that someone has written, debugged and tested a library for it, according to the RFCs. URIs are complex - check out the code for URL parsing in Node.js and the Wikipedia page on URI schemes.
There are a...
How to reference constants in EL?
... import will also import class constants in EL scope.
<%@ page import="com.example.YourConstants" %>
This will under the covers be imported via ImportHandler#importClass() and be available as ${YourConstants.FOO}.
Note that all java.lang.* classes are already implicitly imported and availa...
【HarmonyOS】真机测试ble - HarmonyOS NEXT - 清泛IT社区，为创新赋能！
[2:01:15 PM] YAIL[254]: (begin (require <com.google.youngandroid.runtime>) (process-repl-input "P:)R:yv~...
[2:01:15 PM] → SimpleYail 执行
[2:01:15 PM] [YAIL] 解析 YAIL (244 chars)
[2:01:15 PM] [YAIL] 解析得到 1 个顶层表达式
[2:01:15 PM] [YAIL] 执行[0]: (be...
How do I migrate an SVN repository with history to a new Git repository?
...e who's wondering which is "Casey's answer" which is referenced in lots of comments around here, it's this one (Casey changed his nick to cmcginty).
– Stefan Monov
Oct 5 '16 at 10:35
...
How do I disable the security certificate check in Python requests
...ou set
verify to False.
>>> requests.get('https://kennethreitz.com', verify=False)
<Response [200]>
If you're using a third-party module and want to disable the checks, here's a context manager that monkey patches requests and changes it so that verify=False is the default and s...
C# XML Documentation Website Link
...gt;
/// This is a math function I found <see href="http://stackoverflow.com">HERE</see>
///</Summary>
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Excel RTD(Excel Real-Time Data)实时刷新数据技术 - C/C++ - 清泛网 - 专注C/C++及内核技术
...在MSDN的Real-Time Data FAQ上有其性能描述（http://msdn.microsoft.com/en-us/library/aa140060(v=office.10).aspx#odc_xlrtdfaq_whatisrtd），据说在一台配置为 Pentium III 500 MHz 的CPU和 128 MB 内存的电脑上，RTD可以在一秒内对20000个独立的主题（topic）更新三次...
Line-breaking widget layout for Android
... you want.
FlexboxLayout is in Google GitHub repository at https://github.com/google/flexbox-layout at this moment.
You can use it in your project by adding dependency to your build.gradle file:
dependencies {
compile 'com.google.android:flexbox:0.3.2'
}
More about FlexboxLayout usage and a...