Linux

MKDIR-P Create directory (make Directorys) p recursive creationLs-l (Long) d (direcitory) displays directories or filesCD switch directory from "/" directory,/root directory, e.g./user This path is called absolute pathPWD View current pathTouch

The ping command is primarily used to test the connectivity of the host.Grammar:ping [-DFNQRRV] [-c Number of references:-D uses the So_debug function of the Socket.-F limit detection. The request is sent at full speed without waiting for the

1. Timed task comparison and cron syntaxLinux task scheduling can be divided into two categories: Tasks performed by the system itself Work performed by the user Two other scheduled task

grep commandPS commandThe PS command in Linux is the abbreviation for process status. The PS command is used to list those processes that are currently running on the system. The PS command lists the current snapshots of those processes, which are

1. read the permission listCommand: Getfacl file650) this.width=650; "src=" Https://s5.51cto.com/wyfs02/M02/91/3B/wKioL1j0rJfwlb0PAAAcvQptUi0932.png "title=" c}2)} Jhvsitk3xn92ofl1x2.png "alt=" Wkiol1j0rjfwlb0paaacvqptui0932.png "style=" Padding:0px;

1. Create users and user groups1) Users and user groups/ETC/PASSWD basic information for saving system users/etc/group Saving User group informationUser name: X:uid:gid2) Basic CommandsUseradd adding usersGroupadd Adding user groupspasswd setting a

Disk MBR partitioning in Linux--Practice of FDISK command syntaxFDISK (options) (parameters)Options-b 指定每个分区的大小-l 列出分区表信息-v 显示版本信息ParametersDevice files: e.g./DEV/SDAInstanceSelect the disks you want to

Wang Yi + "Linux kernel analysis" MOOC course http://mooc.study.163.com/course/USTC-100002900First, the understanding of Linux system and learning experienceOperating system as a platform to run tasks and programs, almost all of the independent

After growing up a Linux engineer, I realized the sadness behind the road. Thank you very much for supporting my companion and teacher, is that you encourage me, persist in the end, only in this industry foothold. If you are learning Linux, then it

On the Linux terminal:First you need to run Sudu-apt-get Scrot get Scrot SoftwareThen use the Scrot.The different methods and instruction formats are as follows: Scrot [options] [file].1. To full screen and save file name Scrot ~/name.png2. Grab the

# # # #1. Installation # # #automatic; input command can be executed#!/bin/bash # #命令运行环境的指定Virt-install \ # #安装虚拟机--name \ # #虚拟机名称指定, which represents the first string of characters after the script--ram \ # #内存--FILE/VAR/LIB/LIBVIRT/IMAGES/$1.IMG

What when Permissions ListA permission setting that adds a name to a file's permissions How to view the list of permissions [[email protected] mnt]# ls-l file -rw-rw-r-- 1 root root 0 nov 7 09:14 file If this bit is ".", on behalf of this

ALT + B jumps up a spaceALT + F jump down a spaceALT + Backspace Delete the previous wordShift + Insert paste text to TerminalCTRL + U cut the content before the cursorCTRL + K to cut the cursor to the end of the lineCTRL + E Moves the cursor to the

Starting symbol:D: Represents a directory, in fact, in EXT2FS, the directory is a special file.-: Indicates that this is an ordinary file.L: Indicates that this is a symbolic link file, which in fact points to another file.B, C: respectively, the

Post-->bios-->mbr-->kernel-->initramfs-->rootfs/sbin/init (configuration file/etc/inittab)Kernel design StyleRedhat SuseCore: Dynamic Loading moduleKernel module:/lib/modules/kernel version number as the name of the

Common commands for LinuxCommand init[0123456]0: Turn off the machine1: Single User2: Multi-user no network3: Multi-user has network4: System not used reserved to user5: Graphical interface6: System restartInitialize system-initiated configurationLs-

1 Cut: Split the file in some way and then outputOption:-B Select by byte-D Custom Delimiter-F and-D are used together to specify which area or field[Email protected] ~]# CAT/ETC/PASSWD | Cut-d:-F 1 #以: Prints the first field as a delimiter[email

Role:Copy the SSH public key of the current machine to another machine. In order to realize from the current machine can ssh without password landing to other machinesUsage:1) Write the IP address you want to add to a file. For example, host2) Save

Command aliasesAlias aliases = ' 'Aliases defined in the shell are valid only for the current shell life cycle, and the valid range of aliases is only the current shell processTo permanently use aliases in the shell, you need to change the

Linux firewall configuration-access the Internet WEB, linuxweb I. Lab Objectives 1. Based on the "Linux basic network construction experiment", this experiment builds WEB services on an Internet Virtual Machine and configures firewall rules for the