linux essentials exam questions

already answered before listening to the test.[Examination questions]DescriptionPlease give the relevant command answer to the question, write to the bottom of the question (if it is not possible Baidu search, write the answer, but must be marked to search, correct the problem score halved).Environment: All issues are command results under the centos5.x Linux root user environment1. Create a directory/data

packaging tools and write the corresponding compression decompression parameters. 5, how to check whether to open 22 port, and see if the sshd process exists? 6, the modification time under the/data directory is 7 days ago, and files larger than 100k are copied to the/tmp directory. 7, find out the system more than 50k and less than 100k of the file, the file Oldboy replaced with Oldgirl. 8, now the file B.txt all 123 to replace the Def, how can I achieve? 9, write out the Redhat, configure the

Question 1:Please put the following stringstu494e222fstu495Bedf3stu49692236stu49749b91Switch to the following form:stu494=e222fStu495=bedf3stu496=92236Stu497=49b91Question 2:Echo I am Oldboy training, please put the output of each character to the order, repeat the number of rows to the front.This article is from the "Old Boys Linux Training" blog, make sure to keep this source http://oldboy.blog.51cto.com/2561410/1855453Two

zcvf/backup/etc-$ (date +%f). tar.gz/etc/1.10Add a virtual userMysqlSpecifyUidto be888Useradd-u 888-s/bin/nologin MySQL1.11Write timed Tasks,every night12Click Delete/var/spool/postfix/maildrop/directory under7days before the file. Script Name: rmmaildrop.sh script content:/bin/rm $ (find/var/spool/postfix/maildrop/-type f-mtime +7)Scheduled Tasks: XX * * */bin/sh rmmaildrop.sh>>/dev/null 2>11.12to bealex888User ConfigurationSudopermissions that require you to run all life without having to ent

differences between soft links and hard links under Linux. (2 minutes)3.linux the difference between single and double or no quotes in the shell (2 minutes)4.linux Run Level 0-6 (1 minutes in memory)5. Describe the principle of file deletion under Linux (3 minutes)[Technical skills written test

################################################################This article extracts from the old boy Linux practical operation and maintenance Training Center before the exam question (answer part)If reproduced, please be sure to keep the link and copyright information herein.Welcome to Yun-Brother together to Exchange Linux/unix website operation and Maintenan

. Find/oldboy-type f-name "*.log"-size +1m |xargs cp-t/tmpCP $ (Find/oldboy-type f-name "*.log"-size +1m)/oldboy1.11 What is the operating level of Linux, describe the meaning of different numbers of Linux running levels? (Additional questions)0 turn off the machine1 Single-user mode2 Multi-user mode (no NFS)3 full Multi-user mode4 not used5 Graphical Interface6

Server and so on.2. Under the premise of not destroying the 1 deployment, also use Oldboy user to complete multiple keys to a lock (B,c key, a lock)-Free landing deployment as follows:B---------->aC---------->aNote: This topic is used in the production environment, data backup, etc., but the production environment this way is recommended to be implemented by the daemon process.The goal of the final realization is, 1, 22 topics to achieve two-way password-free authentication login.3. If you incr

;. NET CLR 2.0.50727;. NET CLR 3.0.4506.2152;. NET CLR 3.5.30729) "59.33.26.105--[08/dec/2010:15:43:56 +0800] "get/static/images/photos/2.jpg http/1.1" 200 11299"Http://oldboy.blog.51cto.com/static/web/column/17/index.shtml?courseId=43" "mozilla/4.0 (compatible;MSIE 6.0; Windows NT 5.1; SV1;. NET CLR 2.0.50727;. NET CLR 3.0.4506.2152;. NET CLR 3.5.30729) "59.33.26.105--[08/dec/2010:15:44:02 +0800] "get/static/flex/vedioloading.swf http/1.1" 200 3583"Http://oldboy.blog.51cto.com/static/flex/adobe

50k less than 100k in the system, copy them into the/tmp directory (4 ways)Answer:The first method:Find-type f-size +50k-size-100k|xargs-i CP {}/TMPThe second method:CP $ (Find-type f-size +50k-size-100k)/tmpThe third method:Find-type F-size +50k-size-100k-exe c CP {}/tmp \;The fourth method:Find-type f-size +50k-size-100k|xargs cp-t/tmp1.10 1.10 Please give the example of a date command in the following format: 11-02-26. Then give the implementation of the weekly output such as: Saturday outpu

a question. This is a required skill or quality for Linux team members. The question is very interesting. It may be explained that more people are interested in Linux and Linux technology. To promote xiyou Linux interest group: Group Homepage Group Profile Group blog Group album Group Wiki By

The software designer examination is about to begin the day after tomorrow. Based on my experience in reviewing and analyzing real questions over the years, I would like to share my experiences and experiences in the afternoon. Looking at the real questions from to 11 years, it is not difficult to find that the exam focuses more and more on concepts and basic s

An emergency for help. I have to submit the exam questions at six o'clock P.M.. Please help me. Thank you. -- Linux general technology-Linux programming and kernel information. The following is a detailed description. Operating System Structure Analysis and Application Programming Examination Paper 1. the following co

This semester mainly on Linux system management, the content is divided into six chapters: understand and install Linux system, file and directory management, user, group and Rights Management, disk and file system Management, System Package management, system process and service management. The final exam requires each student to create a new virtual machine in

Tags: delete principle ace trace Puzzle Other error file delete trace queueThe principle of file deletion under Linux essence explanation (Test answer series)Description: This article is a part of the old boy Linux training exam questions and answers to share the content of the blog post, but also independent into the

A linux exam (simple)-Linux general technology-Linux technology and application information. The following is a detailed description. 1. You can configure the network during Linux installation. 2. shell is a command interpreter. 3. RedHat

view the path to the command Whereis,locate,find1 [[email protected]/]# which CP2 alias cp='cp-i' C18>3 /BIN/CPSomething else besides the command.CpIf you do not want to prompt for confirmation protection under commands such as copy move delete, you need to add "\" to the command before1 [[email protected]/]# cp/tmp/test.txt/mnt/2# #会提示 3 [[email protected]/]# \CP/TM p/test.txt/mnt/4 # #不会提示5 [[email protected]/]#/bin/cp/tmp/test.txt/mnt6 # #另一种方法, the exact location of the command see

Yue inlay 2012-09-26 14:03:21With the expansion of Linux applications many friends are beginning to touch Linux, depending on the experience of learning windows there is often a sense of confusion: where to start learning. Here are some suggestions for learning Linux.First, starting from the basics: often some friends in the Linux forum to ask some

Guide Students who are hesitant to study in the pit of Linux or have been in the pit, often ask such eight questions. Today, I will answer all these questions, I hope my views can help you classmates. As the saying goes, "a good beginning is half the success", if you understand the following eight questions, you c

Tags: target rollback score class cut result master Enter production caseSuper depth of the shell advanced programming practice, as of the current Shell programming courses in the domestic training institutions The most fine courses, do not believe in the level of students to see the performance.Course cows are not cattle, not to see the teacher, schedule, but to see the level of students to cultivate, at present all free in the friends hurriedly look ah.Http://edu.51cto.com/course/course_id-525