Linux

Orphan process and daemon processThrough the previous study we learned how to create a process through the fork () function and the vfork () function. Now let's go into two special processes: The orphan process and the daemon.I. The orphan process1.

Http://linux.51yip.com/search/ffmpeg# ffmpeg-y-i "1.avi"-title "Test"-vcodec xvid-s 368x208-r 29.97-b 1500-acodec aac-ac 2-ar 24000-ab 128-vol 200 The-F psp-muxvb 768 "output.wmv" is explained below:-y overwrites the output file, that is, if the

Directory1. Introduction to Commands2. Common parameter Introduction3. Example4. Direct access to the bottomIntroduction to CommandsThe tar command is used to package or decompress a file, with the extension ". Tar", which specifies that specific

in this chapter, we begin the introduction of Linux system, we first understand the structure of the disk and the concept of file system, in the foundation of the previous article, the main introduction of the use of Linux commands and other

Summary of the CVEs in Spectre & Meltdown checkercve-2017-5753 bounds check bypass (Spectre Variant 1) Impact:kernel & All Software Mitigation:recompile software and kernel with a modified compiler this introduces the Lfence opcode at

Zip compression toolSupport compression directory, do not delete the original file after compressionPreparatory work:Install the ZIP package and unzip package with the Yum-y install zip unzip and copy the large files to the Aminglinux directoryZip 1.

I. Usage Analysis:Fork () This function, it can be said that the name of the person, it is well known that fork the word is meant to fork, the foreigner to take the academic name when there will always be some pictographic ideas, so there is ~The

sed exercisesCopy/etc/passwd to/root/test.txt, print all lines with SED[Email protected] sed]# sed-n ' 1, $p ' passwdPrint 3 to 10 lines of test.txt[[email protected] sed]# sed-n ' 3,10 ' P passwdPrint the line containing ' root ' in test.txt[[email

Reproduced in: http://www.cnblogs.com/cj2014/p/3728324.htmlLinux under binary package, source code package, RPM packageMainly available in three formats MySQL package: RPM format, binary format, source format: (Tar package, GZ compression)RPM Format:

A. File Directory Operation command:1. One Linux command per day (1): ls command2. One Linux command per day (2): cd command3. One Linux command per day (3): pwd command4. One Linux command per day (4): mkdir command5. One Linux command per day (5):

Detailed description of karma & amp; jasmine automated testing,Front-end package management tools Code reuse and reuse are an important way of quick development. However, the original code modules are scattered on various platforms, so it is hard to

Linux Command head command, linux Command head The head and tail are just as easy to understand as their names. They are used to display a certain number of text blocks at the beginning or end, and the head is used to display the beginning of the

Use of logrotate in Linux Log File Manager, linuxlogrotate Use of logrotate in Linux Log File Manager Navigation -Example 1: 17% -Example 2 42% -Example 3 46% -Troubleshooting 52% -1. Manually run logrotate53 % -2. Rehearsal 57% -3. Force round

Scp execution in the Linux background and scp execution in the linux background Recently, it takes a long time for a large scp file to be completely down on a remote machine. After executing the command using xshell, it cannot be closed. Otherwise,

Reset the password in Ubuntu 16.04 (forgot the password), Ubuntu If you forget your Ubuntu user password and cannot log on to the system, it is very easy to reset the password on Ubuntu, even if you forget the user name.#1 Enter Recovery

Python path [Article 2]: Python basics, python Article 2For Python, everything is an object, and objects are created based on classes. Therefore, the following values are all objects: "zhurui", 22, ['beijing', 'shanghai', 'shenzhen'], and are

Quick repair of Centos7 System Time Zone !, Centos7 Time Zone Note: After modifying the time zone of the Linux system, install jvm again. By default, the jvm uses the time zone of the system.If the system time zone is set incorrectly, modify the

EduSoho program online real-time recording and edusoho online real-time recording1.1 modify the configuration file [root@web01 nginx]# cat /application/nginx/conf/extra/edusoho.conf server {listen 80;server_name edu.etiantian.org;root

HAProxy load balancing, 1. HAProxy introduction: HAProxy is a free, efficient, and reliable high-availability and load balancing solution. This software is ideal for processing layer-7 data requests from high-load sites, HAProxy's working mode

Create a private CA server in LinuxWhat is a certificate? It is used to prove that something is indeed something. In general, certificates are like official seals. The official seal proves that the relevant documents are indeed issued by the