kill -0 pid sending the signal 0 to a given PID just checks if any process with the given PID is running and you have the permission to send a signal to it. $ man 2 kill If sig is 0, then no signal is sent, but error checking is still performed; this…

[jQuery] check if an id exists - Google 网上论坛 From: http://docs.jquery.com/Frequently_Asked_Questions#How_do_I_test_whether_an_element_exists.3F if ( $('#theId').length ) {   // exists} else {  // doesn't exist}…

http://forums.codeguru.com/showthread.php?392273-RESOLVED-How-to-get-window-s-HWND-from-it-s-process-handle I am confused about what you know and what you still need to know. Some of your statements seem to be contradicting, so I will tell you some p…

How to get parent pid from a given children pid? I know I can mannully check it under /proc, I am wonder if there is a smart/better way to achieve this in Ubuntu. Note the parent may or may not be killed. Thanks --------------------------------------…

Transaction (Process ID 161) was deadlocked on lock | communication buffer resources with another process and has been chosen as the deadlock victim. Rerun the transaction. --This will cause read transactions to not take any locks and not be blocked…

多线程处理sql server2008某个表中的数据时,在Update记录的时候出现了[Transaction (Process ID 146) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction]显示的错误是因为处理的表没有设置主键,而更新时是根据主键进行更新的.…

问题:oadrunner录制时弹出invalid application path!please check if application exists对话框 原因:IE浏览器地址不对,需要手动重新选择IE浏览器路径 解决:我把浏览器的地址重新指向了一下 IE一般是:C:\Program Files\Internet Explorer\iexplore.exe 这样就可以啦!…

1.提示:A mysqld process already exists ps 命令用于查看当前正在运行的进程. grep 是搜索 例如: ps -ef | grep mysql 表示查看所有进程里 CMD 是 mysql的进程信息 ps -aux | grep java -aux 显示所有状态 ps kill 命令用于终止进程 例如: kill -9 [PID]…

另一方面,线程ID=进程ID+内部线程对象ID并不成立,    参考: blog.csdn.net/heyetina/article/details/6633901     如何在java代码中获取进程process id, 实现方法如下所示:    参考: rednaxelafx.iteye.com/blog/716918 http://www.cnblogs.com/mumuxinfei/p/3678854.html…

1.首先声明一点:PID不是端口(port id),而是Process ID进程号的意思. 2.那么,什么是进程号? 采集网友的意见就是: 进程号,是系统分配给么一个进程的唯一标识符.PID就是各进程的身份标识符,程序一运行系统就会自动分配给进程一个独一无二的PID.进程终止后,PID被系统回收,可能会被继续给新运行的程序. 3.深入理解二者关系: 一个程序一个端口: 一个端口可以有多个进程: (顺便提一下:一个进程可以有多个线程(将一个进程的系统资源共享给一个程序内多道分程序,并行运行,以达到…