Cloud Applications

We have encountered the & lt; application several times when introducing standard input, standard output, and while loop. We learned how to send emails and create a menu. However, & lt; there are many other Usage cases. This chapter introduces the

One of the most annoying tasks of shell programming is debugging. Some methods can be used for reference, but it is best to prevent most errors before the problem occurs. Therefore, follow the following rules. One thing to remember is that when the

Use the built-in mail function in linux to test the mail sending function as follows: $ mail-stestxxx @ 163 comsldkfjlskdjf [CTRL & amp; 43; D] cc: sometimes a prompt is displayed: youhaveanewmailinvarspoolmailroot and cannot see emails in the

In fact, many shell embedded commands have been used. You may want to think about shell embedding. these commands are created in the actual Bourneshell instead of in the bin or usrbin directory. Embedded commands are faster than the same commands in

1. test whether the local OpenOffice service can be started: Enter the following command in the command line: openoffice installation directory soffice-headle-accept = & quot; socket, host = localhost, port = 8100; urp; & quot;-nofirststartwizard &

The last time I talked about some common user and group operation commands, I also need to know a few other knowledge points, I will share my learning experiences one by one. 1. check the user status. sometimes we can use sudopasswd-S to check the

When a user logs on, the system executes the etcprofile file. the root user does not want other common users to interrupt the process. He usually blocks signals 1, 2, 3, and 15 by setting traps, and then re-opens these signals when the user reads

Many of my friends installed Linux and looked at the brand new menu style and unfamiliar programs, and suddenly their heads were empty (especially when the system did not install Chinese language support). I don't know what to do, so a strong idea

1 install adbapt-getinstallandroid-tools-adb2 configuration 1) run lsusbBus001Device002: ID8087: 0024IntelCorpIntegratedRateMatchingHubBus002Device002: ID8087: 002 1. install adb Apt-get install android-tools-adb2. configuration 1) run lsusb Bus 001

We often encounter this problem. we used telnetssh to log on to a remote Linux server and run some time-consuming tasks. as a result, the task failed midway through due to network instability. After the command is submitted, how does one prevent the

In ubuntu, run the netstat command to view port usage. View the connected service port (ESTABLISHED) netstat-a view all service ports (LISTEN, ESTABLISHED) netstat-ap find the window you want to close (such as 8080): netstat In ubuntu, run the

System Optimization service introduction: Tuned is a daemon that monitors and collects system components and uses resources. you can dynamically adjust the system according to the collected information, CPU and network resources can be adjusted to

First, you should first install the linux operating system. at the beginning, you can look at the shell script. you don't need to worry too much about it. you can look at several files in etcrcd, familiarize yourself with the startup process and

I. Introduction to the kernel is the core of an operating system. It manages system processes, memory, device drivers, files, and network systems, and determines system performance and stability. Linux, as a free software, is constantly updated with

By accident, I suddenly thought about it and decided to drop the bbs with my friends on the server. So it took two or three hours to get the result. It's just 20284 m of VPS & amp; it's a little bit difficult, and let's get started. I don't know

First, view the current machine Nic IP1 display the currently started network interface command: ifconfig2 view all current network interface command: ifconfig-a3 view the specified network interface command: ifconfigeth0 IP address modification in

1. login ftp code: lftp user name: password @ ftp address: transfer port (default 21) usage (1) lftpusername: password @ 127001: 21 press enter (2) lftpusername @ 127001 press enter default port 21 press enter and enter password (3) l 1. log on to

Scenario 1: unabletoloadselinuxpolicymachineisinenforcingmodehaltingnowkernelpanic-notsyncing: attemptedtoki appears after you change etcselinuxconfigSELINUX = disable. Scenario 1: It appears after/etc/selinux/config SELINUX = disable is modified

Classification: Linux_Linux basic operations 2013-12-1820: 43117 people read Comments (0) add to favorites report 1 understand bash this shell1 manages the entire computer hardware is actually the operating system kernel, this kernel needs to be

1. file management commands mainly include ls, rm, mv, ln, mkdir, touch, cat & hellip; ls to view the file list. for example, to view the current directory: ls view the file list and display the file attributes, including time, group, and user. use: