process exit code 1

Reclaim process user space resource exit () function _ exit () function atexit () function on_exit () function, _ exitatexitAbstract:This article describes how to terminate a process and how to use the exit () function to terminate the process and

Abstract:This article describes how to terminate a process and how to use the exit () function to terminate the process and reclaim the user space resources of the process. It analyzes the exit () function and the _ exit () function, difference in

Process 1 is the main first process init of all processes How to view the process: PS uax # Include # Include # Include # Include Int main (){Pid_t PID;Int A = 8;Printf ("current process ID: % d \ n", getpid ());PID = fork ();If (pid> 0) // What

The Dameon process is also called the Daemon, in general he has the following 2 characteristics :1. The life cycle is very long, once started, generally will not terminate, until the system is launched, but the Dameon process can be stopped or send

Now I've written a Hello World program to take a look at it: Filename:main.c #include int main (void) { printf ("Hello wolrd!\n"); return (-); } Compile execution: gcc main.c &&/a.out Now let's take a look at the return

Objectives of this section: Zombie Process SIGCHLD Wait Waitpid 1. botnets When a child process stops running before the parent process, the association between the child process and its parent process still ends until the parent process

What are the differences between exit (0), exit (1), and exit (-1? When the process ends, the return value to the system is different. If your process is user, run echo $? You can see that the return value of your process is the value you set in the

The exit and exit status codes exit are used to end a script, just like in C. it also returns a value, which is passed to the parent process of the script. The parent process uses this value for further processing. each command returns an exit

The process has the following five normal termination methods: (1) execute the return statement in the main function. This is equivalent to calling exit. (2) Call the exit function. This function is defined by iso c. Its operations include calling

Exit and exit Status Codes Exit is used to end a script, just like in C. it also returns a value, which is passed to the parent process of the script. The parent process uses this value for further processing. Each command returns an exit status