Linux

Overview The W command –> to view the information of the logged-in person and their behavior. parameter -H does not display a caption. -U ignores user name when listing current process and CPU time. This is primarily the case after the SU command

L Inux Input Equipment Total class Miscellaneous, common include keys, keyboard, touch screen, mouse, rocker and so on, they are character devices themselves, and the Linux kernel will be the common abstraction of these devices, simplifying the

Wxwidgets is a cross-platform C + + library, including Windows, Linux, Mac OS X, Windows Mobile, IPhone SDK, embedded GTK +, and so on, and many open source software needs this library to develop, And the common operating system defaults to

Linux Build and delete users First, new user Linux is a multi-user operating system, and we can create different users and do different jobs on the system. 1, open the terminal input sudo-r useradd user name #-R parameters to establish system

Cron is a daemon under Linux that is used to perform tasks on a regular basis. To allow Cron to perform the tasks you specify, you first need to edit the crontab file. Command: CRONTAB-E Just go in to hint select an editor, optional, I used to use

1. Virtual Machine Management CommandsVirsh-manager # #开启虚拟机管理器Virsh List # #显示正在运行的虚拟机Virsh List--all # #查看所有虚拟机Virsh Start Desktop # #打开虚拟机Virsh Shutdown Desktop # #正常关闭虚拟机Virsh desktory Desktop # #强行关闭Virt-viewer Desktop # #显示虚拟机2. Installation

Ifconfig eth0 Up | DownWrites IP configuration information to the configuration file/etc/sysconfig/network-scripts/ifcfg-eth0Service Network restartRoute Add | del default GW 192.168.1.1Route-n/etc/resolv.confPingHost Www.baidu.comTracerouteNetwork

1 Create a new two folder one to store the installation files, one to store the extracted filesMkdir-p/export/software // store installation files mkdir-p/export/servers // store extracted files2 Place the Tomcat file in the Software folder on

1. Linux Overview?? Linux is a free-to-use and free-to-propagate Unix-like operating system, a POSIX and Unix-based multiuser, multitasking, multi-threaded and multi-CPU operating system. It can run major UNIX tools software, applications, and

1. Open the file with VI or VIM to display the line number:Show Current line number:: NuShow All line numbers:: Set Nu2. Set the server display line number2.1 Edit the ~/.VIMRC file to add the fileSet2.2 The configuration file for VI in Ubuntu is

Environment: centos7.2; Tools: Xshell1, install git, the command is as follows:#yum Install git2, set the user name and mailbox, the command is as follows:#git config--global user.name ' user name ' #git config--global user.email ' mailbox '3.

As we all know, sometimes we use links to make reference operations to save space. Similarly, there are also at the system level. In the Windows family, we call this a shortcut, and in Linux we call it a link (basically all the same, which may be

Find: [PATH] [option] [action]1. Time-related,-atime,-ctime,-Mtime-mtime N: N is the number of days, a file that has been changed in the day before-mtime +N: List N days ago (excluding n days per se)-mtime-N: List within n days (including n days per

1,/etc/sysconfig/network-scripts/ifcfg-eth0Device=eth0Type=ethernetuuid=9d1d6e2a-cfc5-4e60-8f28-b779a001b538Onboot=yesNm_controlled=yesBootproto=dhcpDefroute=yesIpv4_failure_fatal=yesipaddr=192.168.62.128Name= "System

1. Locking system Important files:The system operator may sometimes encounter situations where a file cannot be modified or deleted by the root user, most likely because the file is locked. The command to lock a file under Linux is Chattr, which

PwdCdSpecial directories. And..Absolute path and relative pathTouch creates a file if the file that you want to create already exists, update the file's creation time.RM-RF Force no prompt to delete files and directoriesMV Cut or rename filesCat

When the default installation is complete and you do not know the root user's password, how do I apply root permissions?(1) sudo command[Email protected]:~$ sudoThis allows you to enter the current administrator user password to get superuser

Linux User and Group management What are users and groupsUser, simply put, the user is an identity that the system administrator logs on and manages the computer.Group, we can think of a collection of users, the group of users have the same

First, install the dependency packageYum install-y gcc gcc-gfortran glibc-headers readline-devel libxt-devel gcc-c++ xz-devel.x86_64 texinfo.x86_64 texlive-p Dftex-doc.noarch(This depends on the end of the package./config will not support PDF, there

In general, we often ask each server to keep the server time synchronization, for no server time synchronization to do the following instructions:1) window w32tm is used to synchronize the local computer with the remote computer or the domain time.1.