Linux

Please follow the Linux basic commands as required on the machine . CD command: Switch directories(1) switch to directory /usr/localCd/usr/local(2) go to the current upper directoryCd..(3) go back to your home folderCD ~LS command: View files and

CD command: Switch directories(1) Switch to directory/usr/localCd/usr/local(2) Go to the current upper directoryCd..(3) Go back to your home folderCD ~ls command: View files and directories(4) View directory/usr for all filesLs/usrmkdir command:

# # Software Oracle JDK version 1.8.0_11# # Delete the original 1.7 or 1.8 jdk# yum-y Remove Java-1.8.0-openjdk-headless# yum-y Remove Java-1.7.0-openjdk-headless# Mkdir/usr/java# # Unzip your uploaded jdk.tar.gz# TAR-ZXVF

Installing GCC with YumInstalling with the Yum command is also very easy.yum -y install gcc gcc-c++ kernel-devel //安装gcc、c++编译器以及内核文件Installing GCC manually Remove the required RPM package from the CENTOS7 system installation image (also

CD command: Switch directories(1) Switch to directory/usr/local　　Cd/usr/local(2) Go to the current upper directory　　Cd..(3) Go back to your home folder　　CD ~ls command: View files and directories(4) View directory/usr for all files　　Ls-al / usrmkdir

Please follow the Linux basic commands as required on the machine.CD command: Switch directories(1) Switch to directory/usr/localCd/usr/local(2) Go to the current upper directoryCd..(3) Go back to your home folderCD ~ls command: View files and

1. SystemUname "What System",-r "View kernel version"DF-LH view disk usage and where the file system is mountedFDISK-L view disk partition table and partition structure2. UsersUseradd username "Add User"-G Group name username "directly add user to

First, the linkHard Link:Multiple aliases are used for the same file. The new file is an alias that already exists, and when the original file is deleted, the new file is still available. Hard links are no different from the original files, and

Please follow the Linux basic commands as required on the machine . CD command: Switch directories(1) switch to directory /usr/local Cd/usr/local(2) go to the current upper directoryCd..(3) go back to your home foldercd~ls commands: Viewing files

9.1 Regular Introduction on _grepEgrep is the extension of grep, with all grep functions;grep is used to filter the keywords;-R Traverse All subdirectories-V to reverse, meaning that in addition to the keywords in the row, the other lines show up;9.2

Please follow the Linux basic commands as required on the machine.CD command: Switch directories(1) Switch to directory/usr/localSuCd/usr/local(2) Go to the current upper directoryCd..(3) Go back to your home folderCD ~ls command: View files and

C Language exercises in the Liunx system: Input "I am from shanghai" and output "shanghai from am I" and liunxshanghai in inverted order. C Language exercises in the Liunx system: Input "I am from shanghai" to output "shanghai from am I" in

How does one establish a trust relationship on a linux machine ?, Build trust on linux machines1. For the two hosts A and B, to establish A trust in A on B, you must first generate an ssh-key on host. Check whether the id_rsa and id_rsa.pub files

Summary and sharing of 23 common linux interview questions, and 23 in linux 1. ps usage ps-ef the content of each column is as follows (8 columns) UID // user ID, but the output is the user name PID // idppid of the process // The percentage of CPU

How to add and view scheduled tasks in linux Add a linux scheduled task: Crontab-e View the scheduled task list: Crontab-l View scheduled tasks: /Etc/init. d/crond restart: restart, status: Task status: start: Enable, stop: stop Or

Shell framework, #! /Bin/bash# Note# Note# Environment variables:PATH =/sbin:/bin:/usr/sbin # Import function, similar to # include "*. h" in C Language" ./Etc/init. d/functions # Retrieving configuration information is not required, as shown in

Configure SSH and cmdtussh in ubuntu Update source list Open the terminal window and enter sudo apt-get update" Install ssh Open the terminal window and enter "sudo apt-get install openssh-server" --> press enter --> enter "y" --> press enter -->

Linux rescue mode operation steps During Linux running, the system may fail to start due to misoperations. The rescue mode provided by Linux can solve such faults. The rescue mode is actually a micro-operating system. It can repair the system and

Quick Summary of bash shortcuts and summary of bash shortcuts Bash command line is an essential helper for programmers in daily development. mastering some effective and commonly used shortcut keys can help us better use the bash tool and improve

Deploying NTP, L01-Linux in a l01-linuxrhel6.5 (RHEL6.5) Cluster RHEL6.5Deploy in ClusterNTP NTPNetwork Time Protocol is called Network Time Protocol. It is generally used in Linux to synchronize the time of different machines in the