learn linux for beginners

UBUNTU one-sentence skills-getting started with Linux (for beginners) view the installation content of software xxx dpkg-L xxx find the software apt-cache search Regular Expression find which package dpkg-S filename apt-file search filename query software xxx depends on which packages apt-cache depends xxx queries which packages of the software xxx depend on apt-cache rdepends xxx to add a CD source sudo ap

Correct some misunderstandings of ctime for Linux beginners in order to distinguish ctime from mtime when they first come into contact with ctime. The mistake is that ctime only changes when the file or directory permissions change, A big mistake! After my own experiments, I have made a lot of google documents, which are summarized as follows: 1) when the file is read-only, it affects atime 2) when the file

Simple tips and commands for linux beginners (3) ctrl + c terminate the current process (entering the writing command status) ctrl + k Delete the content from the cursor to the beginning of the line ctrl + u Delete the content from the cursor to the End of the line Home key move the cursor to the End of the line file View file type more View File Content press enter to gradually scroll down Press space to s

View Help:Man commandExit Help directory: QSwitch directory: CDCD CatalogCD Directory/DirectoryCd.. : Top level DirectoryCD/: Root directoryCD ~: HomeCreating directories and deleting directoriesmkdir Create mkdir directory nameMkdir-p a/b/cRmDir DeleteRmDir directory Name: Only one empty directory can be deletedList of files in the presentation directory (ll can be used later)LsLS: The name of the visible file (and directory) to be displayedLs-a: Show the names of all the filesThe file is prece

"error!theinputingcannotbeempty!" read-t30-p "Operator:" calcheckcal=$ (echo "$cal" |sed "s/[\+\-\*\/ ]//g ') donewhile[-n "$checkcal" ]doecho "errorinputinng!thetypeofinputing" mustbe[' + ' or '-' or ' * ' or '/']! ' read-t30-p "Operator:" calcheckcal=$ (echo "$cal" |sed "s/[\+\-\*\/ ]//g ') donedoneif[ "$cal" == "+" ];then echo $num 1 $cal $num 2=$ (($num 1+ $num 2) "elif[" $cal "== "-" ];thenecho "$num 1 $cal $num 2= $ (($num 1-$num 2)) "elif[" $cal "==" * "];then echo $num 1 $cal $num 2=

operations like moving files with the mouse, which is of course slow! Finally, I have to say, delete it. You are not suitable for Linux. Linux is not used like this. you can see how these advanced Linux users operate. generally, they all open an xterm or rxvt terminal on X, and more than 80% of the operations are completed using commands on this terminal, becaus

is learning PHP mysql necessary to learn Linux? This post was last edited by Mosquitoh on 2014-12-24 17:13:23 is PHP SQL required to learn Linux? Is it lanmp to learn together, or can I just learn php and MySQL and some frontend?-

The company has a Linux server and has to learn it if you don't want to learn it. For details, refer to the following section: Linux general technology-Linux technology and application information. I have been confused by LINUX in

Title, I want to go to php back-end direction, optimistic about the recruitment to understand Linux, want to know in advance Reply content:Need to learn, very important. At least the following points are required: 1. Common commands: CD, LS, CP, mkdir, MV, top, PS, cat, SSH, SCP, tail, head, find, grep, chmod, Chown,kill, rm, ping, etc. 2, some basic concepts: pipeline, redirection, standard output, standa

In the environment of the Internet, the concepts of cloud computing, big data, Internet of things, artificial intelligence are becoming more and more familiar to us, and we are beginning to integrate into our scope of application. What is Linux cloud computing and what can you do to learn about Linux cloud computing?Cloud computing is an increase, use, and delive

To learn about Linux, you must learn Shell commands-general Linux technology-Linux technology and application information. The following is a detailed description. Do you agree with this idea? If you do not learn Shell, you have n

optimizations, such as Linux will be the free memory cache file directory, file content, can not use virtual memory, but Windows will be using virtual memory, even if the memory is sufficient.Software, Linux has a huge open source software support, Web servers, cache servers, database servers, these are free choices, are stable and mature products.However, I think that

Reply content:Problem-driven, PHP has the same as the C (or similar) library function definition, these are basically the C library function packaging, in addition, under the lamp development, will encounter a variety of problems, these problems deep digging down, will learn a lot of bottom-level knowledge. After a long time, it is natural to write C easily. Of course, if you develop under lamp, you will naturally

To learn Linux programs, first learn VIM-general Linux technology-Linux programming and kernel information. The following is a detailed description. Today, I have experienced the power of Linux LiveCD and VI. I feel that the

, there were few advertisements and they were very comfortable to use. At that time, the only thing that was unacceptable was the lack of QQ and MSoffice. After all, I was still a student and there was a piece of windowsXP around me, so I couldn't help it, finally, I switched back to Windows XP. At that time, I used Linux as a desktop, but I didn't know the difference between Linux and windows. After work,

this principle will not change, Linux commands have many powerful features: from simple disk operations, file access, to the production of complex multimedia graphics and streaming media files. For example: Linux's Common command find, look at the man document, beginners will feel too complex and not intended to use, but once you learn to Fondle admiringly. Its

The 1,linux version number indicates:Major.minor.releaseExample: 2.4.4,3.10.182, Distributor:Release version: Open source program +linux kernelSlackwareThen derivative: SuSEDebianThen derivative: UbuntuRedhatThen derivative: Centos (Community Edition)FedoraArchlinux,gentoo: Source code, can be automated according to the needs of optimization and customization, but the technology is more complex3, Applicatio

--programming. When you get here, you just use Linux, maybe learn a little shell programming, you can learn a simple shell, write a script. But if you want to become more familiar with Linux, you need to learn Linux programming. F

Suppose you are from a computer science class. you have completed all the basic courses of the computer science department, such as data structure, operating system, architecture, compilation principle, and computer network. I think it can be divided into four phases, Suppose you are from a computer science class. you have completed all the basic courses of the computer science department, such as data structure, operating system, architecture, compilation principle, and computer network. I thin

Assume that you are from a computer science class. You have completed all the basic courses of the Computer Science Department, such as data structure, operating system, architecture, compilation principle, and computer network.I think it can be divided into four stages, from low to high.From installation and use => common Linux commands => Linux system programming => kernel development, read the kernel sou