How to use Linux common command last

Http://www.jb51.net/article/120140.htmRecently in the study of Linux commands, learned the last command, found that many students are not very familiar with the last command, the function of the previous command lists the current and the past logged

Linux add disk and create partition management

Detect and confirm a new hard driveExecute the "fdisk-l" command to view and confirm the device name and location of the new drive.The purpose of the FDISK-L command is to list information about all hard disk devices and their partitions in the

Set command in Linux: "Set-e" and "Set-o Pipefail"

These two usages of set are often seen in the shell scripts in the work, but like many things in life, habits lead to neglect until problems arise. 1. Set-eThe- e parameter of the SET command, Linux comes with the following description:"Exit

Linux Backup Data command

One, backup data command:Mysqldump-u root-p zzqndyy_emr |gzip-9 >/root/6yc_zzqndyy_emr-20180115.gzError:1. Error 10451045 Access denied for user ' root ' @ ' localhost ' (using Password:yes)How to resolve:In/etc/my. CNF file[Mysqld], add

Linux Fundamentals 02

* * Linux Basic Operations common commands (ii) * * Username and host nameWhen you enter the Linux terminal, you will see a picture of the following style:where [[email protected]] in square brackets z indicates the user name of the current system

Linux installation Sftp

1,SFTP: Login Commandxshell:\> sftp [email protected]Connecting to 192.168.159.128:22 ...Connection established.To escape to local shell, press ' ctrl+alt+] '.Your current Local Directory isC:\Program Files\netsarang\xshell 42,help commandSftp:/root>

Linux Install hp Load Generator 11.00 Records

Install upgrade compat-libstdc++-33The steps are as follows:AST login:wed Jan 15:21:01 2018 from 172.31.240.117[[email protected] ~]# yum install compat-libstdc++-33loaded p Lugins:fastestmirrorbase | 3.6 KB 00:00:00 Epel/x86_64/metalink | 8.0 KB 00:

Detailed Linux Installation gcc method

Download: http://ftp.gnu.org/gnu/gcc/gcc-4.5.1/gcc-4.5.1.tar.bz2Browse: HTTP://FTP.GNU.ORG/GNU/GCC/GCC-4.5.1/View Changes:http://gcc.gnu.org/gcc-4.5/changes.htmNow many programmers are using GCC, how to better apply gcc. Currently, GCC can be used

Linux view CPU and memory usage

During system maintenance, it may be necessary to review the CPU usage at any time, and to analyze the system condition according to the corresponding information. In CentOS, you can view CPU usage by using the top command. After running the top

Linux under the Firewall management tool Firewall-cmd

About FIREWALLDAs the kernel of the management software Firewall-cmd, by using this software to indirectly manage the Linux kernel open and close, and so on, while the Firewall-cmd software itself supports firewall-cmd (command) firewall-config

Linux Command Summary

$ System Information# Arch Display Machine Processor Architecture (1)# UNAME-M Display the processor architecture of the machine (2)# UNAME-R shows the kernel version being used# DMIDECODE-Q Display hardware system components-(SMBIOS/DMI)#

Linux Learning Summary--linux program management, terminal type and command get help way

This chapter blog related Linux knowledge points Computer = hardware + software.Von Neumann theory, five parts: cpu--arithmetic, controller, memory, input device, output device.The Shell environment configuration is configured through

Linux Learning Summary--linux program management, terminal type and command get help way

This chapter blog related Linux knowledge points Computer = hardware + software.Von Neumann theory, five parts: cpu--arithmetic, controller, memory, input device, output device.The Shell environment configuration is configured through

Linux system administrator Essential Resources Download Summary

Linux system administrator Prerequisites:Linux System Administration Toolkit Series Rollup Linux system administrator must seeVandyke SecureCRT 6.1.3 Attached special documentsBird Brother's Linux private Cuisine Basic Study (second edition)HD PDF

Text Processing tools for Linux

# #: Text Processing tool 650) this.width=650; "src=" Http://img.baidu.com/hi/jx2/j_0011.gif "alt=" J_0011.gif "/>File View method:Cat-n Display add line number, empty line also add line number-B Displays the add line number, but the blank line does

Linux under SSH key key login remote server settings

The local user name needs to be the same as the user name of the SSH server1. Load the private key file on the serverSsh-add Wang_rsa2, if the system prompt: Could not open a connection to your authentication agentSsh-agent BashAnd then perform the

Linux Learning Notes

1, the permissions of the directory: R indicates that the directory can be displayed. W indicates whether the file under the directory can be created, deleted, renamed and other operations. x indicates whether the directory can be entered and the

Linux memory Management-kernel Shmall and Shmmax parameters (performance tuning)

Shmall and Shmmax parameters of the kernelShmmax= is configured with the largest memory segment size: This setting is much better than sga_max_size.Shmmin= the smallest amount of memory segmentShmmni= the total number of memory segment for the

"Find specified file contents" in common Linux commands during testing

In this case, when viewing the log location issue, log is transferred locally, then open the file with the local text Editing tool, then look for the keyword and then analyze it. This will undoubtedly reduce efficiency.Several commonly used commands

Analysis of process scheduling for Linux,windows and Unix

Summary : This article takes Linux, Unix, Windows operating system as an example, analyzes its process scheduling strategy, in order to have a deeper understanding of process scheduling process Key Words : process scheduling priority time slice

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