Linux

In Linux, the Ethernet interface is named: Eth0,eth1, and so on. 0, 1 represents the NIC number.To view the network card information, you can use the Ifconfig commandIfconfig-a View All interfacesIfconfig eth0 Viewing specific interfacesTo turn the

Linux operation and Maintenance Phase II (ii) VI EditorVI Editor (full-screen plain text editor)1. Command mode, insert mode, last line mode2. a insert in the word specifier the cursor a at the end of the line where the cursor is insertedI insert

The first scenario, of course, is to write a script that runs in the background all the time, and then loop through sleep for a while.While True;d oCommandSleep XX//interval of secondsDoneThe second option is to use crontab.We all know that the

Delete a 0-byte fileFind-type f-size 0-exec rm-rf {} \;View processArrange by memory from large to smallPS-E-o "%c:%p:%z:%a" | Sort-k5-nrRank from large to small by CPU utilizationPS-E-o "%c:%p:%z:%a" | Sort-nrPrint out the URL in the cacheGrep-r-a

Under Linux, directories and files will have 3 permissions, namely: Readable R, writable W, can execute x. So what's the difference between a directory and a file's permissions? This is the question that this blog post explains.Before we explain, we

Welcome to add QQ Group: 414835967 Exchange Linux Technology and download the relevant software package and accompanying notes in the group sharing fileKnowledge Points:Linux system directory structureRelative/absolute pathSet the

Example of strace in Linux and linuxstrace The strace parameters are as follows: -T: the output result is accurate to seconds. -Tt output results are accurate to subtle -Ttt is accurate to subtle, and time is expressed as unix Timestamp -T records

Install Code: Blocks 14.10 In Kubuntu 13.12 Because of my 64-bit KUbuntu 14.10, two methods are found. Method 1, First, I went to http://wiki.codeblocks.org/index.php? Title = Installing_Code: Blocks_nightly_build_on_Ubuntu The environment

How to adjust the number of processes opened by Linux Users Adjust the number of processes opened by Linux users !! The content of this article is only tested on RHEL6.4. This article is only for all users. 1. view the nproc (max user processes)

Upgrade Glibc in Linux I. Introduction Glibc is the libc library released by gnu, that is, the c Runtime Library. Glibc is the most underlying api in linux, and almost any other Runtime Library depends on glibc. Glibc not only encapsulates the

Compile CoreCLR on CentOS After several days of efforts, we finally solved the problem of compiling CoreCLR on CentOS. The final problem was caused by CMAKE_C_FLAGS settings. Just remove "SET (CMAKE_C_FLAGS_INIT"-Wall-std = c11 ")" from

Install and use 'go for it! 'Memo Software On the Linux desktop, how do you manage tasks and memos? I like to use the Ubuntu sticker for a long time. But I have to face the trouble of synchronizing with other devices, especially my smartphone. That'

How to install a USB webcam on Raspberry Pi Question: Can I use a standard USB webcam on Raspberry Pi? How can I check if the USB webcam is compatible with Raspberry Pi? In addition, how can I install it on Raspberry Pi? If you want to take a photo

Install the Chinese Input Method in CentOS 6.4 Record the process of installing the Chinese Input Method in CentOS 6.4, and hope to help you. 1. Log On with root, or su root 2. yum install "@ Chinese Support" 3. exit 4. Go back to the desktop

Linux Global Proxy Generally, in Linux, both global proxies are implemented using http_proxy and https_proxy environment variables, but the disadvantage is that this method is not a real global proxy, even if a proxy is set, for some applications,

Install OpenLDAP on CentOS 6.5 and configure LDAP for user logon Install OpenLDAP on CentOS 6.5 and configure LDAP for user logon 1. install PHP and apacheIf you do not have an EPEL source, installYum install epel-releaseIf the file is not

Evolution of High-concurrency Web Services-saving system memory and CPU1. More and more concurrent connections The number of concurrent connections faced by the current Web system has increased exponentially in recent years, and the high concurrency

How to Set an SSH logon Email notification on Linux Enabling the SSH service on a virtual private server (VPS) Exposes the server to the Internet, providing an opportunity for hacker attacks, especially when the VPS allows direct access by root. VPS

Sphinx + MySQL + PHP 1.2 billion DNS data query in seconds Recently, I got data from nearly 1.2 billion global ns nodes. I wanted to use it to perform a nationwide dns lookup domain name and then collect and scan nationwide websites, later, I found

Storm is not fully suited to all real-time applications The rapid rise of streaming data has brought about a new type of application development technology. To cope with the increasing data (such as the large amount of data produced by the Internet