Cloud Applications

The vi editor is a standard editor for all Unix and Linux systems. it is not inferior to any of the latest text editors. here we just briefly introduce its usage and a few instructions. The vi editor is identical for any version of Unix and Linux

When the user powers on the PC, BIOS boot self-check, start according to the boot device set in BIOS (usually hard disk), then start the boot program lilo or grub installed on the device to boot Linux, linux first performs kernel boot, and then

Author: the aolinkscrontab command schedules the execution of some commands at certain intervals. There is a crontab file in the/etc directory, which stores some scheduling programs that are running systematically. Each user can create their own

Robust sed in the second sed article, I provided some examples to demonstrate how sed works, but few of them can actually do something particularly useful. In the last article of this sed series, I want to change that method and use sed for

Crontab usage syntax: crontab [-uusername] |-l |-r |-e |-v-u: user of the specified crontabjob-l: list the job-e of the current crontab: use $ EDITOR to edit crontabjob-v: to list the current crontabjob status. some shells may not support-vcrontabf..

1. installation steps: 1. Compile and install libevent: wgethttp: // monkey.org /~ Provos/libevent-1.4.9-stable.tar.gztarzxvflibevent-1.4.9-stable.tar.gzcdlibevent-1.4.9-stable/./configure -- prefix/ 1. installation steps:1. Compile and install

A CentOS server has been deployed recently. the requirement is that disks other than the system will be automatically mounted after startup. This should be a common requirement ~~ Online implementation is relatively simple, but there is a problem!

In the Linux file system, many people do not understand Inode. today I will share with you my understanding of Inode. if there is something wrong with understanding Inode, please give me more criticism. One day in the previous article, I learned

I have known asynchronous IO for a long time, but it has not been used recently to solve the actual problem (in a CPU-intensive application, some data to be processed may be stored on the disk. The location of the data is known in advance, so an

Environment: Operating system: UbuntuServer10.10Postgresql version: 8.4.51. switch to the ROOT account, create the Softwares directory under the ROOT directory, and grant the corresponding permissions. 2. download Postgresql8.4.5wgethttp: // logs /..

Preparation in advance: 1. add a hard disk (IDE or SCSI) to the VM. 2. partition the disk using fdisk. # fdisk-l purpose: check the name of the newly added hard disk/dev/sdb # fdisk/dev/sdbCommond: mCommond: nE: P: p -------- the hard disk capacity

I will not go into details about the origins of linux systems, including the advantages and disadvantages. The following describes basic learning methods and ideas in the learning process. 1. instruct the attacker to fish 1. First, create a linux

It seems that git is good everywhere, which is more convenient for developers. So do you need to study git in the short term? Go to http://www.wikivs.com/wiki/git_vs_subversionto find the most decisive sentence. The general expression is determined

A terminal is a type of terminal device. it has multiple types and generally uses tty for short. Tty is short for Teletype. Teletype is one of the earliest terminal devices, such as a telex typewriter (or), produced by Teletype. On the Li...

1. in httpd. add the following content to the site configuration in conf: AddOutputFilterByTypeDEFLATEtext/htmltext/plaintext/csstext/xmltext/javascriptDeflateCompressionLevel9SetOutputFilterDEFLATE2. in. htac 1. in httpd. add the following content

Recently I want to read this book on Unix Advanced Programming. I wanted to use the Code: Blocks under Ubuntu. it was quite uncomfortable to use it alone. Finally, I decided to use the simple Vim. below is the configuration of the programming

For example, when the webserver site directory is used to build the nginxwebserver for webtest, the default user and user group permissions are nginx: nginx, that is, nginx. the default user in conf and php-frm.conf is webtest: nginx: nginxnginx.

The native kernel compilation driver method in the official documentation has very poor wireless network signal after compilation, and the WEP encryption method at home is barely accessible, but the network quality is poor. The company's WPA2

An important feature of linux kernel is the provision of a unified kernel device model. With the continuous advancement of technology, the topology structure of the system becomes more and more complex, and the requirements for smart power

Ubuntu has two browsers: chromium and firefox. ubuntu do not contain flash. In fact, installing flash is very simple. Download the install_flash_player_11_linux.x86_64.tar.gz file from the official website. My ubuntu is 64-bit .... Install adobe