learn linux system administration

, and intelligently judge with shell scripts to synchronize files from the remote server.And my other Raspberry Pi is a battle-hardened, once used as my Git repository, to be honest, the memory is a bit overwhelming, the installation and deployment of Gogs through Docker can be said to be the most agile git warehouse building. Of course, I'll give the veteran a temperature, humidity sensor, push to the server through WebSocket, and then just need to be in the mobile browser or access the page to

. adjust the top command to display the list items. Such as adding a GROUP column or UID column. However, the next time you use the top command, it turns out to be the default one. K. terminate the process. R adjusted the process priority (Linux and AIX are from-20 to 19, HP-UX is 0 to 39), as to how to get it, you can view through man nice. H Show Help Q: Exit top. For the above internal commands, we recommend that you try them first, so it will be

085bb3bcb608e1e8451d4b2432f8ecbe6306e7e7author:your_username [email protected ]: Mon-Nov4 One: +: - --0700Adds myNewfeaturecommit a11bef06a3f659402fe7563abf99ad00de2209e6author:your_username [email protected]: Mon-Nov4 Ten:Panax Notoginseng: - --0700Initial commitIf we want to go back to "adds my new feature" This commit, simply use the submitted ID to do checkout (checkout) (usually only with the first 9 letters of the ID)git checkout 085BB3BCBWe can also check out a new branchgit checkout-

, no permission is- The fourth character represents the owner execution permission, if the permission is x, no permission is- Fifth character represents the owner of the same group of user Read permission, if the permission is R, No permission is- The sixth character is the owner of the same group of user write permissions, if the permission is W, no permission is- The seventh character indicates that the owner is the same as the group user execution permissions, if the permission is x, no permi

Enter edit mode and enter at the beginning of the current line A go to edit mode and enter at the end of the current line O Enter edit mode , starting at the next line of the current line O Enter edit mode , starting at the top line of the current line : (colon) Enter Command mode W Save File Q Exit the VIM editor Q! Force exit from the Vim editor without sav

don't be so crazy! The more complex the branching, the harder it is for us to determine what we are doing.10. AliasesGit allows us to create shortcuts (aliases) for commonly used commands. For example, if we don't want to enter Git commit-m "some comment" every time, but instead enter git C "some comment", we can add an alias to the GIT global configuration, like this:git config--global alias.c ' commit-m 'Here is the list of aliases I used:git config--global alias.c ' commit-m 'git config--glo

deletedCreate files You can use the file editor to createNanoNano ' s another editor, an enhanced free Pico cloneEnglish character ASCII (American standard Code for information interchange)Store 128 different characters, the computer stores the smallest unit bytes2^7=0,127000 0000-111 1111Kanji (GB GB18030 GBK GB2312 Unicode full character set)2^16Two bytes a kanji0000 0000 0000 0000Iv. Directory ManagementLsCdPwdmkdirmake a empty directorye.gmkdir-pv/mnt/test/{x/m,y} curly braces ExpandMKDIR

thanks to my mentor's strong support, I applied for a United States server, let me use to do the experiment to deploy something, suddenly interest, want to take a good look at this server system information, and review the command to view system information. (The main reference of the content "How Linux Views System In

#!/usr/bin/envpython#-*-coding:utf8-*-"" "@Author :villiamsheng@group: LinuxGroup@Date:2011-07-18@Funtion: Updatekvmhoststatus... get_nic:getaweeknetwork flow1, getsevendaysbeforeflow,getmaximumvalue! 2,GetSevendaysbefore flow,getaveragevalue! "" "Importos,sys,libvirt,socket,shutil,refromstatvfs importf_blocks,f_bavail,f_bsizeclasskvm_os_status (object): def __init__ (self): NBSP;NBsp;self.vmm={} Try:self.conn=libvirt.open (None) exceptlibvirt.libvirtError,e: printedefget_ Mem (self):try: f=open

32-bit 2 32-way, 4G of memory (virtual address space) regardless of physical memory size.System call (OS interface), too lowWheat Flour Steamed bunLayer-by-layer encapsulation is the library (API, only called to execute, no entry)Hardware operating system API application softwareLet the application run up the shell (Man-machine Interface)Library Call (API) librariesLoad BIOS-"kernel-" programApplication Program InterfaceGuiCliLinuxRedHat CentOS (Littl

commandsOnce: Executes the instruction in the process without ending it (not used)Executes the command specified by the process when Ctrlaltdel:ctrl+alt+del (the default is the shutdown directive) = = = That's why the Power Bar shortcut key is the origin of the shutdown DafaNote: The start script location of action Sysinit is in: sysint/ect/rc.d/rc.sysinitThen you will determine the operating level of the system, to find a different RunLevel startup

typeCD command to switch directoriesTop level directory:. Current directory:. User home directory: ~ Previous working directory:-Any directory under the CD return to the home directoryfile operation:Create: mkdir Create folder Touch create empty file or update file time Delete: RmDirDelete Empty foldersRM Delete File parameter:-I interactive (prompt confirmation for each deleted file)-R recursive DeleteNon-empty folderUnder all Content-F Force Delete, no warning prompt replication: CP source fi

Tags: cloud computingThe Linux system has been used more and more in recent years, so many people are eager to learn Linux. But we all grew up learning windows, from Windows 98 to the present Windows 10, and based on the experience of learning Windows systems to learn

Start to learn some Linux suggestions and learn some Linux suggestions. Correct Learning Attitude 1. Linux is not like a hacker (or Cracker ). Of course, we all know that many "hacking tools" are on the Linux platform. I hav

Linux runs a variety of internet services, from Google search to Facebook. Linux also runs on many devices, including our smartphones, TVs, and even cars. Of course, Linux can also run on your desktop system. If you're new to Linux, or you want to try something different on

With the rapid development of Internet technology in these years, the phenomenon of technology is becoming more and more prominent in the field of information technology in the era of big data, cloud computing, virtual technology and artificial intelligence. With the shortage of high-end Linux ops, why should we learn Linux? xxx teacher thinks, perhaps can start