linux sysadmin course

files that begin with K and appends a stop string to it;(3) Displays the file name of all files beginning with S and appends a start string to it;(4) The respective numbers of documents that begin with the beginning of S and K respectively;13. Write a script to complete the following functions(1) The script can accept the user name as the parameter;(2) Calculate the sum of the IDs of these users;14. Write a script(1) Pass some catalogs to this script;(2) Display the content type of all level fi

System Installation:Boot entry brief: After the "boot:" prompt: Direct Enter (enter)--graphical interface installation mode Linux text--character Interface installation mode Linux askmethod--prompts the user to choose an installation method (for example: NFS, FTP, HTTP Remote installation) Linux rescue--Rescue mode, such as repair after/etc/f

very detailed help documentation, including usage instructions and FAQs, from system installation to system maintenance, to system security, and detailed documentation for different levels of users. After reading the document carefully, 60% of the questions can be resolved here.4 Learn to think independently and solve problems independentlyEncounter problems, the first thought should be how to solve the problem, there are many ways to solve, such as reading information, web search engine search

/iwconfig,/sbin/mii-tool,/bin/cat,/var/log/*Cmnd_alias p_cmd_1 =/bin/cat ~/log/*,/bin/cat/var/log/message,/bin/cat/app/log/*,/bin/sh/~/scripts/deploy.sh# # User_alias by oldboy## #2012User_alias ADMINS = senior001, Manager01User_alias chujiadmins = chuji001, chuji002, chuji003User_alias Netadmins = net001User_alias programers =%phpers# #Runas_Alias by oldboy# #2012/11/30Runas_alias Suuser = root#pri ConfigADMINS all= (All) Nopasswd:allChujiadmins all= (Suuser) nopasswd:all,c_cmd_1Netadmins all=

I. Description of the Catalogue1.1 Bin General user, executable system built-in commands1.2 Sbin system administrator, executable system built-in commands1.3 Boot boot file directory, start the relevant files are saved in this1.4 Dev Device Management files, such as mobile hard drives, USB drives, optical drives, etc.1.5 Home User home directory, in general: A user will have a corresponding folder, named after the user name1.6 lib dynamic link library shared library, type. dll file library for W

of the current process of printing the PID, and then determine whether the clock interrupt the dispatch flag (my_need_sched) is set to 1, if 1 will be the dispatch flag 0, call My_schedule (), avoid the message mechanism, Then print the PID of the current process again. Myinterrupt.cThe My_time_handler () implementation is called per thousand and the Dispatch flag (my_need_sched) is not 1 o'clock, printing ">>>my_timer_handler hereThe above code is the process scheduling function fault-toler

Get help informationDon't try to remember all the commands(1) What is the meaning of the whatis asking what the order is, and what effectWhatis NMCLI(2) How to use nmcli--help Query command and its options (option parameters)(3) Man nmcli can find more detailed help informationMan MansHow to find man:/string Find KeywordsN Find keywords DownN Find keywords upG Back to the head of the help documentG back to the tail of the Help documentQ Exit the Help document　　(4)/usr/share/doc software after in

Linux cloud automated O M course 4: linux cloud AutomationAutomated O M for Linux I. vim 1. Move the vim cursor 1) In command mode : Number ### move to the specified row G ### last line of the file Gg ### first line of the file 2) In insert mode I ### insert a cursor I ### first line of the cursor A ### next positio

Course Objective: To enable zero-based learners to easily and skillfully master Linux systems and real-computer troubleshooting, the primary use of Linux technology handy.Suitable for the crowd: college students, 0 basic students, Linux beginners, Linux enthusiasts,

[Course sharing] This article introduces how to transplant and develop an embedded linux system (Environment setup, uboot porting, and embedded Kernel configuration and compilation), and how to implement uboot. Embedded linux system porting and development (Environment setup, uboot porting, embedded Kernel configuration and compilation) Dear user, I have a set o

, involving analog circuits, digital circuits, C language , computer composition principle, microcomputer control technology, network technology, data structure and other courses, and Linux driver has its own unique software framework This is the core of learning Linux drive, many students face the Linux drive involved so many courses and knowledge points, especi

51CTO College old boy Education Linux OPS + top architect Course Learning Communication QQ Group: 384467551, 390642196 Old boy Education official website: http://www.oldboyedu.com/ Key recommendations 1 Old boy Linux high-paying maintenance training Total Course