Linux Tar Command parameters

tar command1. Function Tar command is unix/A reliable way to back up files in a Linux system can work in almost any environment, and its use rights are for all users. 2. Format tar [main option + Secondary options] File or directory Eg:tar zxvf

Switching user identities in Linux systems usage and examples of SU and sudo

In daily operation in order to avoid some mis-operation, more secure management system, usually use the user identity is ordinary users, not root. When you need to perform some administrator command operation, then switch to the root user to execute.

Linux Common commands

1. Review the processPS commandEnter the following PS command to display all running processes:# PS aux | Lesswhich-A: Show All processesA: Show all processes that include other users in the terminalX: Show the process without control terminalTask:

Linux Modify local time

1. Linux Time adjustment1) Install NTP (destination sync time) yum install NTP2) Modify File vi/etc/ntp.conf addServer ntp.sjtu.edu.cn perfer #复旦大学server 210.72.145.44 # China National Time Center Server 202.112.10.36 # 1.cn.pool.ntp.orgserver 59.124

Linux NFS File Server installation and configuration

1. SceneAn organization needs to configure the NFS server for synchronizing picture files.Host Name: nfs.local,test.localIP address: 192.168.3.15, 192.168.3.182. Experimental environment2.1. Operating system# Cat/etc/redhat-releaseRed Hat Enterprise

Various small commands and directories for Linux

PWD Displays the current working directoryWW.H.O.WhoAmIDisplays the current user and the established SSH linkUseradd create a new normal userpasswd Modifying a user's password# represents the root Superuser who is currently working$ represents a

Linux file Permissions

drwxr-xr-x 11 liuchenglong staff 374B 3 25 09:33 packageLinux file management and Windows are very different, many details do not learn are difficult to understand, but in fact, they are paper tigers, as long as a little learning can be mastered,

Learn about Linux DNS service setup for Beginners

To configure the DNS approximate steps:1. Configure the IP address, and DNS points to itself.2. Turn off the firewall and turn off SELinux.3. Mount and install the bind package4. Copy the configuration file5. Configuring named.conf Primary Files6.

Learn about Linux DNS service setup for Beginners

To configure the DNS approximate steps:1. Configure the IP address, and DNS points to itself.2. Turn off the firewall and turn off SELinux.3. Mount and install the bind package4. Copy the configuration file5. Configuring named.conf Primary Files6.

Learn about Linux DNS service setup for Beginners

To configure the DNS approximate steps:1. Configure the IP address, and DNS points to itself.2. Turn off the firewall and turn off SELinux.3. Mount and install the bind package4. Copy the configuration file5. Configuring named.conf Primary Files6.

Linux Server for NFS installation

Server-sideYum Install Rpcbind-yYum Install Nfs-utils-yAvailable Rpm-qa | grep NFS & RPM-QA | grep rpcbind Query is installedService Rpcbind StartService NFS StartMkdir/share (Create Share)Generate primary configuration file (/etc/exports)Configure

Linux Cloud Automation Operations Lesson IV

Linux Cloud Automation operations Lesson IVFirst,vim1.vim cursor Movement1) in command mode: Number # # #移动到指定的行G # # #文件最后一行GG # # #文件第一行2) in insert modeI # # #光标所在位置插入I # # #光标所在行行首A # # #光标所在字符的下一个位置A # # #光标所在行行尾O # # #光标所在行下一行O # # #光标所在行上一行S #

How does the total of the linux command ls-l be calculated?

own handwriting Implementation ls-l command tangled for a long time, just finally figured out. Directly on the code important partLong Ntotalblocks = 0;dir* DP = opendir (dirpathname); struct dirent* dirp;while ((DIRP = Readdir (DP)) = NULL) {Lstat (

Linux base-awk, variables, operators, if

AwkThe operation of a program is a variable of some column state, which is represented by the change of variable value.Start with a letter or underscore, and the rest can be: letters, numbers, underscores.It is advisable to follow the following

Linux Basic Utility Commands collation--subsequent updates will continue

Monitoring:Baidu Webmaster ToolsSmokeping Open source Monitoring, network monitoringReal Machine Command MonitoringIpmitool can monitor hardware information but requires Yum to install Openlmpi IpmtoolView System Module lsmod| grep IPMIMEGACLI tool

Simplifying Linux multimedia development with GStreamer

First, the basic conceptGStreamer is the recommended streaming media application framework for the GNOME desktop environment, with a plug-in (plugin) and pipeline (pipeline) architecture, all functional modules in the framework are implemented as

About Nohup.out logs in Linux is too big a problem

About Nohup.out logs in Linux is too big a problemBackground, Java project, generally run Java program need to use the Nohup command to implement the background boot log, the default is saved in the current Nohup.out file. However, some programs

Linux Operating system knowledge

1. What are the common Linux distributions? Which one are you good at? What is its official website? Which one do you specialize in?For:Common Linux discovery versions are Redhat, Centos, Debian, Ubuntu, SuseBest at Redhat and CentOSRedhat Official

Construction of the LINUX:LNMP architecture

Construction of the LNMP architecture centos6.8-i686 Mysql Php Nginx Install some necessary rpm and PHP components (new system) before buildingYum Install wget gcc vim* libxml2 libxml2-devel OpenSSL openssl-devel Curl

Linux basics-shell script (variables, operators, process control, functions), linux-shell

Linux basics-shell script (variables, operators, process control, functions), linux-shell I. shell script Shell script is a script program written for shell. The shell mentioned in the industry usually refers to shell scripts, but readers should

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