Linux

The last debugging of the serial port, the control of the serial port app involves invoking the 4412 board of the driver, for the Linux driver is ignorant, and Linux in the embedded is a fairly basic and important link, hereby understand.The kernel

1. Create a socketint LISTENFD;LISTENFD = socket (af_inet, sock_stream, 0); Streaming sockets if (LISTENFD 2. Bind bindstructsockaddr_in serv_addr, Cli_addr;bzero (SERV_ADDR,sizeof(SERV_ADDR)); Sin.sin_family=Af_inet;sin.sin_port= Htons

Create a file TouchTouch filenamesCreate a folder mkdirmkdir dir3 dir4 DIR5 Create multiple foldersmkdir ~/games Create the Games folder under this directory of logged-in usersMkdir-p DIR6/DIR7/DIR8 Creating multi-tier foldersCopying a replicated

Permission ChapterchmodView command Ls-l-RWX r_x r_x 4 user group 1024 omittedFile type Owner permissions with group permissions other people permissions hard link number owner owner group size-Representative documentsD Represents a FolderR Read

Linux Common Commands-topThe top command displays the status of the process in real time. The default state shows CPU-intensive processes and is updated every 5 seconds . You can use the digital size of the PID, age (), time (), Resident memory

1. system Security record fileThe log files inside the operating system are important clues to detect network intrusion. If the system is connected directly to the Internet, and you find that many people do telnet/ftp logon attempts to the system,

Function Description: Reads the standard input data and outputs its contents to a file.Syntax: Tee [-ai][--help][--version][file ...]Note: The tee instruction reads data from a standard input device and outputs its contents to a standard output

Linux displays complete status information for the server[email protected]:~$ apachectl [fullstatus]usage:/usr/sbin/apache2 [-D name] [-D directory] [-f file] [-C "directive"] [-C "directive"] [-K

Linux Display process status[email protected]:~$ toptop-19:16:36 up-min, 2 users, load average:0.11, 0.43, 0.46tasks:195 total, 3 Runn ING, 192 sleeping, 0 stopped, 0 zombie%cpu (s): 1.3 us, 0.5 sy, 0.0 ni, 97.8 ID, 0.4 wa, 0.0 hi, 0.0 si, 0.0 stK

It's been a long time since I thought of a mini2440 development Board, so I wanted to port a Linux system based on linux3.10, but there were some problems with porting the YAFFS2 file system, and I recorded it to help other students solve the same

Linux display displays files in descending order of time[Email protected]:~$ ls-lrt total dosage 56-rw-r--r--1 youhaidong youhaidong 8980 December 00:10 examples.desktopdrwxr-xr-x 2 Youhai Dong Youhaidong 4096 December 15 00:28 Music drwxr-xr-x 2

Testing can requires ip,can-utils and libsocketcan libraries.Configure can, such as rate, enable and disable can, etc. with IP tools. The IP that cannot be compiled with BuildRoot needs to be recompiled.1. Compile IP:IP Source

Linux and Windows implement sharing, need to install Samba serverInstallation steps:1. See if Samba is already installedRpm-q Samba2. If you have installed, if you want to install again, you can uninstallRpm-e Samba3. Attach your own installation

[Problem Record] Some problems encountered when installing apache in Linux, linuxapache The following are some of the problems you encounter when installing apache on linux. These problems are recorded here and will be updated occasionally in the

Solve the update problem in Ubuntu (Readingpackagelists... Error !) Problem description: If you install a software application, the following problems will pop up: Reading package lists... Error!E: Encountered a section with no Package: headerE:

One of the notes for learning linux based on cygwin: getting started Recently I started to learn about linux. I didn't want to install dual-system or virtual machines, so I ran a cygwin command to simulate the linux environment in windows. First

Ubuntu14.04 use rails to connect to the mysql database Rails comes with sqlite3 in all aspects, but the free version lacks a fatal function: Add a password! Although the third party has a compiled binary version of the encrypted version, let's not

Nic configuration After cloning CentOS 6 from VMware Because the cloned Virtual Machine only modifies the Virtual Machine name and other information, and does not modify any information in the virtual hard disk, the MAC address of the cloned Nic

CentOS 7 experience First, let's talk about the original intention of writing this blog. Because the company's products in this phase support CentOS 7, MySql 5.6, Java 8, Tomcat 8, and so on, and due to serious shortage of personnel, I added a lot

Quickly build a LAMP environment using CentOS LAMP -- Linux Apache MySQL PHP In the CentOS installation sequence, I usually choose Apache> MySQL> PHP Step 1. install and configure Apache 1. Install using yum[Plain] view plaincopy Yuminstallhttpd 2.