Linux

1. ls [options ] [file ] Displays the file information in the directory -A show all files (including hidden files) -L View details about the file's properties, size, and more -al View all files and their attribute

Most of the Linux servers we operate are operated remotely, so we need to use the Remote connection tool.There are three kinds of tools commonly used, PUTTY,XSHELL,SECURECRT.Let's talk about putty first. First you need to download putty

1.Linux System Terminal OverviewServer Terminal switch: Ctrl + Alt + F1 ... F6Virtual Machine Terminal switch: Ctrl +shift +alt +f1 ... F6The virtual terminal is generated by the mingetty program//物理机执行为本地终端[[email protected] ~]#

first week of Linux FoundationFormat of the commandCommand option (option) arguments (parameter) consists of three parts, which require a space intervalThe Options option enables a feature of the command to change the function of the

19.7 Active mode and passive mode主动或者被动是相对客户端来讲的被动模式，服务端会主动连接客户端获取监控项目数据，客户端被动地接受连接，并把监控信息传递给服务端主动模式，客户端会主动把监控数据汇报给服务端，服务端只负责接收即可。当客户端数量非常多时，建议使用主动模式，这样可以降低服务端的压力。服务端有公网ip，客户端只有内网ip，但却能连外网，这种场景适合主动模式19.8 Adding a monitoring host先添加主机组aming-test再添加主机，

20.1 Shell Script IntroductionWhat is a shell?shell是一种脚本语言 aming_linux blog.lishiming.net可以使用逻辑判断、循环等语法可以自定义函数shell是系统命令的集合shell脚本可以实现自动化运维，能大大增加我们的运维效率20.2 shell script Structure and

Linux Nexus Warehouse 1. Install jdk1.1 get the installation package, unzip to the specified directory:1 tar XF jdk. tar. Gz-c/opt/export1.2 Configuring Environment variables:1 # vim/etc/profile2 export java_home=/opt/export/jdk3 export path=$

Introduction of a group Divided into two categories according to function: High availability and load balancing A highly available cluster is typically two servers, one working, the other being redundant, and redundancy will take over as the

Recently encountered the need to use a key login situation, different connection terminal situation is not the same, so to summarize thisFirst, the key pair generationNote: The local host and destination host need to be ping1) Verify that the server

One requirement is to compress a folder, but to exclude another folder--exclude command, but execute on Mac TAR-ZCVF test.tgz test/--exclude *.jpg Always prompt Tar:--exclude:cannot stat:no such file or directory And on

Positional parameters can be shift shifted left with the command. For example, the shift 3 original $4 now become $1 , the original $5 now become and $2 so on, the original $1 , $2 $3 Discard, $0 do not move. Commands with no parameters are shift

IntroductionOne of the most commonly used Linux basic commands in find work is to find the files or directories we want by using parameters such as type, size, name, modification time, access time, change time, permissions, and so on. Find lookup

There are several ways to get help with the use of commands:1.man: Help manual for external commands;Man Nine chapters:1. User commands (commands that all users can execute)2. System calls3.C Library Call4. Equipment and special documents5.

Root Administrator Gold 3 rm-rf/*Administrator Administrator US President1. System Information CPU model hard disk how much memory how big kernel information[email protected] ~]#"Who am I @ host name current directory" #高级管理员身份 $ normal UserCAT/PROC/

Knowledge Content:1.Linux Basic Command Review2.VI mode and basic operation3.VI Advanced OperationFirst, Linux basic command review1 Directory (folder) operations2 CD Entry directory (tab auto-complete)3 pwd View current directory4 mkdir Add

Modify the NIC Eth0Vim/etc/sysconfig/network-scripts/ifcfg-eth0++++++++++++++++++++++++++++++++Device= "Eth0"bootproto= "Static" #将原来的值 "DHCP" to "Static"Hwaddr= "00:0c:29:f2:4e:96"ipv6init= "Yes"Nm_controlled= "Yes"onboot= "Yes"Type= "Ethernet"Uuid=

The NL command is used in a Linux system to calculate the line number of a file. NL can automatically add a line number to the output file content! The default result is a bit different from Cat-n, NL can make the line number more display design,

Installation System Preparation:1, software preparation VMware workstation14, Vm14key, CentOS system Image SecureCRTHttp://sw.bos.baidu.com/sw-search-sp/software/39fba669e1b70/VMware-workstation-full-14.1.1.28517.exe2. CentOS OS

Mtime file content Last modifiedThe time that the Atime file was read or accessedCTime File Status Change timeThe meaning of Mtime and atime is easy to understand, and ctime needs more explanations. Because the inode maintains the metadata on each

Installation settings for bastion Machine teleport on Linux platformDownload the Linux version of teleport installation packageHttp://teleport.eomsoft.net/download/get-file/teleport-server-linux-x64-3.0.1.6.tar.gzPlace the downloaded installation