Linux System Foundation Optimization

#查看centos系统版本:[Email protected] ~]# cat/etc/redhat-releaseCentOS Release 6.9 (Final)#查看linux内核版本:[Email protected] ~]# uname-r2.6.32-696.el6.x86_64#查看系统是32位和64位:[Email protected] ~]# uname-mx86_64#创建用户:[Email protected] ~]# Useradd

Linux Notes #05 # Keep programs running after disconnecting remote connections

Tutorial: Linux tips: Several ways to keep your process running reliably in the backgroundSearch the Internet a bit, a lot of methods, choose the most popular screenCommand reference: Http:// InstallationInstall Screen ...

The essential interview essence of Linux operation and maintenance job

1. What is operation and maintenance? What is Game ops?1) operation and maintenance refers to the large-scale organization has established a good network hardware and software to maintain, is to ensure that the business of the line and operation of

20165223 Linux Installation and command Getting Started

Pre-job 3:linux installation and command entry one, VirtualBox and Ubuntu installationBy learning to practice the installation of Ubuntu graphics tutorials based on VirtualBox virtual machines, I began to learn the installation of virtual machines,

Linux Memory Management Overview

It introduces the mechanism of virtual memory and the implementation of MMAP system call. MMAP allows the device memory to be mapped directly to the address space of the user process. The management of physical memory, including cache allocation and

Linux (11) file directory permissions chmod umask chown

A file directory permission definitionFirst of all, let's meet the permissions definition of the file directory, and see the ls-l results below.We found a file or directory in front of the 10-bit information, the first bit represents the file type,

Use of Linux links to create and delete symbolic connections (soft, hard links)

1.How to use: ln [option] source_file Dist_file (source_file is the file to be established for the linked file, Dist_file is the newly created link file)-F is created, it is deleted with the file name.-I ask before deleting.LN-S ABC CDE establishes

How to configure XAMPP under Linux-deppin (full)

Method of configuring XAMPP under Linux-deppin (All) 1, first download XAMPP Linux version from official website[email protected]:/$ sudo ./xampp-linux.runTutorial Address (I extract from this, but also

A detailed description of the TAR compression decompression command under Linux

Source Address: Create compressed archives-X: Unzip-T: View content-r: Append files to the end of a compressed archive file-U: Update files in original compressed packageThese five are

Linux programming UDP socket full guide

This article will summarize the important knowledge points of UDP socket programming in Linux, whether it is developer haulage, or some remote knowledge points of UDP sockets, this paper will talk about. As far as possible, after reading an article,

1. Basic Linux Command Learning 01

=============================================================================Unix/linux's most important application areas are the basic server applications,such as DNS server (domain Name System), DHCP server (Dynamic Host Configuration Protocol),

[Linux] killall, kill, Pkill command detailed

  The Killall command in a Linux system is used to kill a process with the specified name (kill processes by name). We can use the KILL command to kill the process of the specified process PID, if we want to find the process we need to kill, we also

Linux-raid disk array, process management, log management, SYSTEMCTL control

RAID disk arrayInexpensive redundant disk array raid–redundant Arrays of Inexpensive Disks– Consolidate multiple small/low-speed disks into one large disk with hardware/software technology– Value of the array: increased I/O efficiency,

One Linux command per day (9): Touch command

Linux touch commands are not commonly used, and are generally used when using make, to modify file timestamps, or to create a new file that does not exist.1 Basic use1. Command format:touch [Options] ... File...2. Command parameters:-A

Relative and absolute paths to Linux, CD commands, create and delete directories, RM commands

Relative path and absolute path: /( root ) directory for the path. The relative path does not take the / start with an absolute path with / ./abc is a relative path (./represents the current path), /abc is the absolute path. However: ~/

Break continue exit return difference in Linux loop structure

1 overviewIn the script loop, you need to use break,continue,exit. To control the loop. Use return to get the return value of the function. This article will introduce the use of these four commandsBreak [n]: Early end of the nth layer cycle, the

Analysis and application of Linux kernel hash table

 Directory (?) [+]Analysis and application of Linux kernel hash tableAuthor:tiger-johnTime:2012-12-20Mail:[email protected]blog: please indicate the source.Preface: 1. Basic concept: Hash

Linux ct6.5 Installation RABBITMQ

Yum install gcc glibc-devel make ncurses-devel openssl-devel xmlto1.Erlang installation ConfigurationDownload the installation package, address, I chose otp_src_18.3.tar.gz.Then unzip the file:[Email protected]

Linux Delete non-empty directory

the question was basic, but it bothered me for a while. (The main discussion here is the command-line mode)I thought I should use the command rmdir .However, it found that it could not delete a non-empty directory.It was discovered that you should

Linux system boot Process specific explanation-what happened after power-on--linux kernel profiling (0)

This article is for example the following articles Deep understanding of the Linux boot processMBR (Master boot Record)The process that the computer executes before powering it on to the operating system main functionExplain the startup process

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