I. Process management 1. Introduction to Process Management1) Introduction to the processA process is actually a program or command being executed, and each process consumes a certain amount of system resources.2) Role of process management
Source command:The source command is also known as thePoint command", or a dot symbol (.), is the internal command of bash. function: MakeShellreads in the specified shell program file and executes all the statements in the file in turnThe Source
1. Common commandsTo view the partition of a hard disk #sudo fdisk-lView IDE Hard disk information #sudo hdparm-i/dev/hdaView stat hard Drive information #sudo hdparm-i/DEV/SDA or #sudo apt-get install blktool #sudo BLKTOOL/DEV/SDA IDView hard disk
mkdir Creation Example: Mkdir/testCD Switch DirectoryPWD Displays the current pathLS View touch Create file Note: If the file is present, update the time property echo Span style= " color:rgb (0, 0, 0); font-size:16px; "
Signal type
Non-reliable signal (non-real-time signal)
Signals inherited from a Unix system behave as if the signal does not support queueing and may lose signals, such as multiple times of the same signal, and the process can
Pvcreate PV CreationThe Pvmove moves data from the PV storage data PE to other PE.Pvresize Resetting the PV sizePvdiplay Viewing PC detailsPvremove removing PVPvscan Scan PVPvck Detection PVPVS PV Summary InformationCreate PV-V Display procedure-F
Man 7 signal #查看信号的实用信息Commonly used signals:Signal name Number meaningSIGHUP 1 No need to shut down the process and let it reread the configuration fileSIGINT 2 aborts a running process;Sigquit 3 equals ctrl+\SIGKILL 9 forces a running process to
Linux SSH (Secure Shell Protocol) Service
Before data transmission, SSH encrypts the data to be transmitted to ensure session security and data transmission security. The SSH client also contains a remote copy scp.
1. SSH Structure
The SSH service
How to change the IP address in Linux Command Line
The graphic interface can easily change your IP address, but do you know that Linux also allows you to use simple commands in the command line to change the IP address of the Nic?
This technique
Ubuntu uses snap to install VLC 3.0
VLC Media Player reached the new 3.0 important version a few days ago. Now you can install the latest VLC directly in the Ubuntu software utility.
VLC 3.0 "Vetinari" function:
VLC 3.0 activates hardware
Install the BT client uTorrent in Ubuntu 17.10
UTorrent is a BitTorrent client with a closed source owned by BitTorrent Inc. UTorrent uses the bt protocol to transmit larger files. It is estimated that the p2p network accounts for 35% of all
Detailed explanation of the connectivity of the machine ports in Linux environment testing, and detailed explanation of linux
In production, a large part of the problem is caused by different machines with different networks. How can we determine
Introduction to tr commands for viewing files and content processing in linux, linuxtr1. Command description:
The tr command is spelled as translate, and its function is to convert or delete text.2. Syntax:
Tr [Option]... Character Set 1
How to install jdk in linux and how to report errors
Abstract: Recently, Linux has been used, so a new virtual machine and CentOS 6.4 have been installed. Developers may know that in many enterprises, most production environments are Linux servers,
Linux network configuration and principles
Next, we will continue to explain the knowledge of linux systems. We have installed some basic and commonly used commands, but a host must be configured with a network, like our windows system, we also need
How to build a Redis cluster in Linux
Build a Redis cluster in Linux. Try to repeat all commands. One is to deepen the impression, and the other is to avoid pasting errors. After placing commands in text form, the main purpose is for your reference.
How to quickly view disk information in linux, and how to view disk information in linux
How to quickly view disk information in linux. [Root @ centos4 ~] # LsblkNAME ??????????? MAJ: min rm? SIZE RO TYPE MOUNTPOINTSda ?????????????? 8: 0 ??? 0 ?? 20
Knowledge about linux storage and linux
Knowledge about linux system storage. Linux means many things. Its strength lies in its ability to flexibly support completely different usage modes. However, one of the most important advantages of Linux is
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