sigterm

The PHP daemon class, the daemon (Daemon) is a special process that runs in the background. It is independent of the control terminal and periodically performs some sort of task or waits to handle certain occurrences. Daemons are a very useful

The so-called hot restart, that is, when the server related code changes, no need to stop the service, but the server is still running in the state to update the file. Swoole This function with the built-in reload function and two custom semaphores.

Job Management For example, after logging on to bash, we want to copy files, search data, compile data, and write vi programs! Of course, we can log on to the terminal environment of the six text interfaces again. However, can we achieve this in a

Subprocess Module Introduction Subprocess is a tool for Python to create child processes, and in fact a fork in C is a child process, and then running exec in a child process executes another process very similar.There are many ways to create

1.2. Popen ObjectsAn instance of the Popen class has the following methods:1. Popen.poll ()Checks whether the child process has ended, sets and returns the return code value.2. Popen.wait ()Waits for the child process to end, sets and returns the

1. CD commandThis is a very basic, is also a common need to use the command, it is used to switch the current directory, its parameters are to switch to the path of the directory, can be an absolute path, can also be a relative path. Such

Embedded system Linux boot configuration file, different from the normal PC Linux boot configuration, start the relevant files and file content is much less. The Linux boot process under embedded systems is generally:1 in the bootloader to develop a

Vamei Source: Http://www.cnblogs.com/vamei Welcome reprint, Please also keep this statement. Thank you!The Linux process has a certain relationship with each other. For example, on the basis of the Linux process, we see that each process has a

People who have played Linux will know that there are really a lot of commands in Linux, but people who have played Linux have never bothered by the fact that Linux commands are so many, because we only need to master the commands we use most often.

The Linux process has a certain relationship with each other. For example, on the basis of the Linux process, we see that each process has a parent process, and all processes are rooted in the init process, forming a tree structure. We are here to

Magic key: Linux Magic System Request key HacksWhen a Linux system does not respond properly to user requests, you can use the SysRq gadget to control Linux.One-SysRq enable and shutdownTo enable SYSRQ, you need to set the MAGIC sysrq key

The KILL command in Linux is used to terminate the run of the specified process (terminate a process) and is a common command for process management under Linux. Typically, terminating a foreground process can use the CTRL + C key, but for a

2. ls commandThis is a very useful view of the file and directory commands, List of meaning, it has a lot of parameters, the following list some of my commonly used parameters, as follows:-L: Lists Long data strings, including file attributes and

The Linux process has a certain relationship with each other. For example, each process has a parent process, and all processes are rooted in the init process, forming a tree structure. We are here to explain the process groups and sessions so that

From Sysvinit to SystemdIn recent years, the Linux system init process has undergone two major evolution, the traditional sysvinit has faded out of the historical stage, the new system upstart and SYSTEMD each have the characteristics, but more and

Blog gradually migrated to, independent blog, the original address http://www.woniubi.cn/two_groups_signal_difference/Before looking at the signal, there is not much attention to the comparison of different signals. When I see it again today, I

What is Job management?"In the conduct of work management, in fact, each job is currently a subroutine of bash, which is related to each other." We can't manage Tty2 bash in the tty1 environment by job Control! "This concept you have to create first,

Linux Process RelationshipsVamei Source: Http://www.cnblogs.com/vamei Welcome reprint, Please also keep this statement. Thank you!The Linux process has a certain relationship with each other. For example, on the basis of the Linux process, we see

$ kill-l 1) SIGHUP 2) SIGINT 3) Sigquit 4) Sigill 5) SIGTRAP 6) SIGABRT 7) Sigbus 8) SIGFPE 9) Sigkil L) SIGUSR1) (SIGSEGV) SIGUSR213) sigpipe) sigalrm) SIGTERM) SIGCHLD18 (SIGSTOP) SIGTSTP) SIGTTIN22) (Sigttou) Sigurg) sigxcpu) SIGXFSZ26 27 )

Work management (Job control)This job control is used in a bash environment, which means: " when we log into the system and get the bash shell, we perform multiple actions simultaneously under a single terminal interface ." For example, when we