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introduce When performing an NFS mount, you may see the device busy. In this case, you must force the uninstall in an appropriate way. View mounted partitions Using df -h to view partitions # df -h Filesystem Size Used Avail Use% Mounted on /dev/vda1 20G 3G 18G 7% / devtmpfs 236M 0 236M 0% /dev tmpfs 245M 0 245M 0% /dev/shm tm ...

Case 1: Shell Basic Applications 1.1 Question This case requires familiarity with the features of the Linux Shell environment and focuses on the following: Switch user's Shell environmentPractice command history, command aliasesRedirect Standard Input/Output/Error OutputPipeline Operation Practice Step 1.2 The following steps are req ...

prefaceAfter translating the official documents of TypeScript, I used VuePress to build a blog and realized the automatic deployment of GitHub and Gitee Pages, but I finally decided to build my own website. In the process of building the website, linux commands are indispensable. Therefore, this article writes a basically sufficient Linux comma ...

preface Linux is a Unix like operating system that is free to use and spread. It is a multi-user, multi task, multi thread and multi CPU operating system based on POSIX and Unix. With the development of the Internet, Linux has been supported by software enthusiasts, organizations and companies all over the world. In addition to maintaini ...

Excerpt from the third chapter of the second edition of shell script creation utility Script 22 reminder tool Simple utilities like Stickies have been popular with Windows and Mac users for years. You can use them to keep small notes on the screen and send reminders. This application is ideal for recording phone numbers or other reminders. ...

From Chapter 2 of the second edition of shell script actual combat to improve user commands Script 14 formatting long lines If you're lucky, the Unix system you use already contains the fmt command, which is very useful if you work with text every day. fmt can help you format your email or fill the available page width of your document wit ...

Due to the particularity of "batch processing" of Shell script, most of its operation processes run silently without user intervention. Therefore, it is very important to learn how to extract and filter execution information. There are two I/O operations in Shell environment: redirection and pipeline. Linux system uses files to descr ...

Directory processing command ls LS (English meaning list) is used to view the files in the directory. The basic format is LS - parameter option; It should be clear that the parameters and options behind the LS command are optional. It is OK to directly execute ls. The main function of parameters and options is to adjust the command function ...

7.9 examples Example: generate 10 random numbers, save them in the array, and find their maximum and minimum values [root@rocky8 ~]# vim max_min.sh #!/bin/bash # #********************************************************************************************** #Author: Raymond #QQ: 88563128 #Date: 2021-10-22 #FileName: ...

Installation steps of openEuler operating system and graphical interface 1, Write in front To tell you the truth, I haven't even heard of OpenEuler before. Here's the installation process through mountains and mountains and twists and turns. I thought it should be easy to install virtual machines like Ubuntu, but it turned out to be diffe ...