exit 0

2015.1.29When the parent process waits for a child process to terminate, it must call the wait function. If a process waits for the parent process to terminate, you can do the following: The disadvantage is that CPU time is wastedwhile (Getppid ()! =

You can test the database test, table bintest, and data field data type by using LONGBLOB in the middle line of the DBMS.// Test file c: \ test. iso. You can find any file and change it to an exe program and test. iso.// The maximum size of Files

1. Introduction to daemon Daemon processes are the background service processes in Linux. It is a long-lived process, usually independent of the control terminal and periodically executes a task or waits to process some events. Daemon is often

 What is a zombie process? When a process calls the exit command to end its own life, it is not actually destroyed by a zombie process, but left a zombie process called Zombie) (The system calls exit to exit the process, but it is only limited to

  // RequiredSetFor your own// Create the database test, table bintest, and data field data type in the middle of the DBMS and use longblob for testing.// Test file c: \ test. ISO. You can find any file and change

To become a flexible tool, a qualified script must provide additional information to describe the role of the script, how it is executed, and where it is executed. Like the command, the script also uses parameters. Switches and parameters increase

Svnsync synchronizes and backs up svn version libraries. Everyone knows that code is a life for the entire IT company. Most small and medium-sized companies use svn for version control due to personnel level issues, therefore, version database

File read/write operations Fopen fclose fgetc fputc View code # Include # Include Int Main () {File * FP; Char Ch; If (FP = fopen ( " File.txt " , " W " ) = NULL) // If the file does not exist, it is automatically created. No

You can test the database test, table bintest, and data field data type by using longblob in the middle line of the DBMS. // Test file c: \ test. ISO. You can find any file and change it. Program , Changed to test. ISO. // The maximum size of Files

MysqlLONGBLOB stores binary data (modification + debugging + sorting) bitsCN.com creates a database test, table bintest, and data field data type in the middle of the DBMS to be tested using LONGBLOB. // Test file c: // test. iso. you can find any

The Nginx and PHP on the server are both compiled and installed by source code. they do not have built-in service startup scripts like ubuntu, so they do not support nginx (start | restart | stop | reload. Self-help clothes and food. The following

Shell conditional test Command 1. test statement when I want to check that some of the above file scammers are related attributes, I need to use the test command. (1) determine the file type of a file name. for example, test-efilename indicates that-

The size of the point defaults to 1 pixels, but it can also be changed. The changed command is glpointsize, and its function prototype is as follows:void Glpointsize (glfloat size);Size must be greater than 0.0f and the default value is 1.0f, in

Thread (1) This article describes how to use multiple control threads to execute multiple tasks in a single process environment. All threads in a process can access the components of the process (for example Thread (1) This article describes how to

Description of variables and parameters the name of a variable to be replaced is the place where the value of the variable is saved. the value of the referenced variable is called the replacement of the variable. $ this symbol is like a sign that

I. Learning ObjectivesMastering Process ControlMastering the method of signal processingMastering the methods of Pipeline and FIFO for interprocess communicationIi. Learning TasksCompile, run, read, and understand the code in the process.tar.gz

You only need to install the php Command Line tool. Running example: Php supervisor. php/usr/local/nginx/bin/nginx nobody (you can add the corresponding command parameters after this, leave the parameter blank )& Parameter Introduction: the first is

The Code comes from the network. I learned how to sort it out and tested it. The following parameters need to be set for your own The Code comes from the network. I learned how to sort it out and tested it. The following parameters need to be set

Shell_read reads standard input 1. The basic read command receives standard input (keyboard) or input of other file descriptors (as described later ). After the input is obtained, the read command puts the data into a standard variable. The

Usage of the read command in Linux 1. simply read the read command to receive input from standard input (keyboard) or other file descriptors. After the input is obtained, the read command puts the data into a standard variable. The following is the