What will learn the basics of cloud computing? How to resolve Linux knowledge? Given the authority to organize data analysis, 99% of enterprises and individuals using open source software in their IT systems, Linux is one of the more popular open-source software, cloud computing is also learning knowledge base will learn. Many beginners think Linux knowledge complex, difficult to learn, Here we give a simple comb.
What is Linux? Linux is a multiuser, multitasking operating system, is a free software with good user interface, support for multiple processor architectures, easy to transplant. Strictly speaking, is not considered a Linux operating system, the platform only between a Linux system kernel, namely computer hardware, software and communications; Linux stands for GNU / Linux, the Linux system on this be considered a true sense .
After understanding the basic concepts of Linux, you also need to have Linux-related operations and frequently used Linux commands, which is the focus of Zhengzhou cloud computing knowledge base learning tutorial.
Directory: "/" is the top-level directory system, called the root directory, "/ bin, / root, / home, / etc .." directory these two directories are created automatically when the system is installed. Different directory to store files, such as "/ bin" directory is used to store system command, "/ root" super-user home directory, "/ home" as an ordinary user's home directory, "/ etc" for most file system management Wait.
Path: In Linux, everything is in the form of files stored in the computer, so to find Linux inside the file, you need to use the path. Path is divided into absolute and relative paths. Absolute path is the complete file on your computer in which the position, as the absolute path "passwd" configuration file is "/ etc / passwd", the relative path is relatively short document with the current location of a name, the name will not / beginning, and the name will automatically add value pwd display.
VM: When using the Linux system, in order to prevent erroneous operation caused irreparable harm, or need in the particular case of Linux, the virtual machine software came into being. Virtual machines can mimic the real operating system, and has a reset function, so in the process of learning Linux operating system, the majority of applications are done in a virtual machine.
Common Linux commands: display instruction date date, calendar display instruction cal, easy to use calculator bc, several important hotkeys [Tab], [ctrl] -c, [ctrl] -d, man, data synchronization is written to disk sync, the usual shutdown command shutdown, switch execution rank init, change their group chgrp files, change file owner chown, change file permissions chmod, transform catalog cd, display the current directory pwd, create a new directory mkdir, delete "empty" directory rmdir, ls displays files and directories, copy files or directories cp, removing files or directories rm, move or rename files and directories mv, obtain the file name and directory path name: basename, dirname , but only the first few lines of head, tail lines look like tail.
If you want to quickly master the technology needed for enterprise cloud computing, cloud computing accumulate more practical experience, you can choose professional learning, from zero to quickly degenerated into a cloud computing engineer your business needs.