大约有 640 项符合查询结果（耗时：0.0079秒） [XML]
How to detect if my shell script is running through a pipe?
...thetic is piped to cat.
The -t flag is described in man pages as
-t fd True if file descriptor fd is open and refers to a terminal.
... where fd can be one of the usual file descriptor assignments:
0: stdin
1: stdout
2: stderr
...
How to prune local tracking branches that do not exist on remote anymore
...tandard Bourne shell):
git branch -r | awk '{print $1}' | egrep -v -f /dev/fd/0 <(git branch -vv | grep origin) | awk '{print $1}' | xargs git branch -d
This string gets the list of remote branches and passes it into egrep through the standard input. And filters the branches that have a remote ...
Check whether or not the current thread is the main thread
..., 0x00000001083515a0 MyApp`MyApp.ViewController.sliderMoved (sender=0x00007fd221486340, self=0x00007fd22161c1a0)(ObjectiveC.UISlider) -> () + 112 at ViewController.swift:20, queue = 'com.apple.main-thread', stop reason = breakpoint 2.1
If the value for queue is com.apple.main-thread, then you'r...
C++对象布局及多态探索之菱形结构虚继承 - C/C++ - 清泛网 - 专注C/C++及内核技术
...：
01 00423FBD cmp dword ptr [ebp+FFFFF73Ch],0
02 00423FC4 je 00423FD7
03 00423FC6 mov eax,dword ptr [ebp+FFFFF73Ch]
04 00423FCC add eax,5
05 00423FCF mov dword ptr [ebp+FFFFF014h],eax
06 00423FD5 jmp 00423FE1
07 00423FD7 mov dword ptr [ebp+FFFFF014h],0
08 00423FE1 mov ecx,dword p...
HMAC-SHA1 in bash
...echo -n "value" | openssl dgst -sha1 -hmac "key"
57443a4c052350a44638835d64fd66822f813319
Or simply:
[me@home] echo -n "value" | openssl sha1 -hmac "key"
57443a4c052350a44638835d64fd66822f813319
Remember to use -n with echo or else a line break character is appended to the string and that chang...
Detect if Visual C++ Redistributable for Visual Studio 2012 is installed
...https://download.microsoft.com/download/8/B/4/8B42259F-5D70-43F4-AC2E-4B208FD8D66A/vcredist_x64.EXE
Microsoft Visual C++ 2005 Redistributable (x86)
Registry Key: HKLM\SOFTWARE\Classes\Installer\Products\c1c4f01781cc94c4c8fb1542c0981a2a
Configuration: x86
Version: 6.0.2900.2180
Direct Download UR...
“历史遗留”漏洞：浅析新型SSL/TLS漏洞FREAK - 创意 - 清泛网 - 专注C/C++及内核技术
...
苹果和谷歌计划修复FREAK漏洞
谷歌公司表示安卓已经把补丁下发到合作厂商。同时谷歌也号召所有网站管理员，禁用对出口级认证的支持。而苹果公司也对此进行了回应，并表示：“我们下周进行软件升级时，会对iOS和OS X系...
error C2275: “size_t”: 将此类型用作表达式非法 - C/C++ - 清泛网 - 专注C/C++及内核技术
...声明全部放在变量的生存块的开始。
注：VS2013（最新补丁SP4及以上）编译器可以支持此类C语法，不会报上述错误。表达式 类型
Win10 升级安装全攻略 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...级至Win10 无法收到推送通知解决方法》自行解决。
收到补丁后，安装提示下载，然后安装，可能提示重启，重启后点击下图所示的安装文件继续安装：
漫长的等待复制文件的过程，结束后自动重启计算机进入正式安装界...
记一次LVS/Nginx环境下的访问控制 - 更多技术 - 清泛网 - 专注C/C++及内核技术
... FULLNAT 模式下传递用户 IP 的问题，引入了一个名为 TOA 的补丁机制，在 TCP 的三次握手阶段，通过 TCP 的 options 来传递用户 IP 和端口等信息，继而覆盖 socket 的 IP 和端口数据。
换句话说，在 RS 服务器上，从 iptables 的角度看，因...