Linux

I. INPUT SUBSYSTEMFor input device design: Touch screen, keyboard, keys, sensors, mouse ...Second, each device is a character device driver, the procedure is the same procedure1. Implement entry function Xxx_init () and unload function xxx_exit ()2,

/********************************************************************************* * I.MX6 Linux 3.0.35 SD Boot * Description: * Record the SD card boot parameter settings, cannot remember. * 2017-11-2 Shenzhen Nanshan Ping Shan village Zengjianfeng

I. Partitioning concept:Logically divided into different storage spaces.Partition type:Primary partition: Can only have up to 4Extended partitions: There can be up to 1. There are up to 4 primary partitions and extended partitions. Boone, the one

Linux memory management, in fact, and Windows memory management has a very similar place, are using the concept of virtual memory, said here have to scold MS, why in many times there is a lot of physical memory, but still use the pagefile. So often

Perform the operation more quickly:1.R3 CGP platform under Omu system:Linux version: 2.6.16.60-0.21-BIGSMPVi/etc/profile2.R2 Linux version 2.6.5-7.244-smpVi/root/.profileAlias cdbin= "Cd/opt/hlr/hdu/bin"Alias cdlog= "Cd/opt/hlr/hdu/log"Alias dslog= "

The hardware needs to be configured, including CPU, memory, NIC, disk, mirror, etc. These in the previous study we can automatically create through the script. After configuring the hardware, start the installation, there are many options we need to

Select title:1. After the user program makes a disk I/O request, the correct process for the system isCorrect answer: BA User program → system call handler → interrupt handler → device driverB User program → system call handler → device driver →

1.Xshell Client Settings2. Server-side settingsModify the/etc/ssh/sshd_config file to find Clientaliveinterval 0 and Clientalivecountmax 3 and remove the annotation symbol ("#")Change the corresponding 0 of the clientaliveinterval to

The General Linux Shutdown command is the shutdown command.The shutdown command automatically calls the Sync tool when it executes, and this tool works by writing something inside the memory to the hard disk. But in order to be safe, we usually use

Disk Management:DF Command:1, DF View the file system disk space usage, in K display units.650) this.width=650; "Src=" Https://s2.51cto.com/oss/201711/02/9fa75902d1addc61877f254499dd499c.png-wh_500x0-wm_3 -wmp_4-s_3227146738.png "title=" 1.png "alt="

1.lsof-iView the system port being consumed by the process (to use the command as root), Lsof-i: port number, to see the occupancy of a port.2.netstat-tunlpUsed to display TCP, UDP ports, processes, and so on. T, which represents Tcp,u, represents

This article mainly shares the following VI command line operation: Vi/etc/sysconfig/iptabels First we need to understand the Putty client's copy-paste insert document exit and other commandsReplication: Refers to select replication in

File system:Rootfs: Root file system/boot: System boot related files, such as kernel, INITRD, and Grub (bootloader)/dev: Device filesDevice files:Block devices: Random access, data blocksCharacter Devices: Linear access, in character unitsDevice

Since the attempt to install directly with PIP has failed, it may be because of the instability of the domestic server, instead of Anaconda installation.1. Installing AnacondaDownload the anaconda version for yourself, which can be found in

Tag: Ras LAN execution protocol power use win causes ERP1. Steps1. First of all, install the Git,window end of the computer terminal please install git for windows,linux end please check your own online 2. Verify that the SSH configuration is

Synchronize local files with server files using shell scripts, Why is this script created to facilitate the deployment of projects? Instead of manually synchronizing different projects, you only need to simply execute the shell script and enter the

Configure https access for nginx and nginxhttps access I. Preparation Environment: centos6.8 Nginx: 1.13.6 Ii. Start First install the dependency package: Yum install-y gcc-c ++ autoconf automake make zlib-devel openssl-devel pcre-devel Start

Introduction to linux processes and task_struct (), linuxtask_struct I. elements that constitute the process In linux, processes mainly have the following elements: 1) there is a program for it to run. This program is not necessarily proprietary to

Linux uses the private key (Public key) to log on, linuxpublic To log on to the Linux server more securely and conveniently, you can cancel Password Logon and use the private key and public key to log on, making it more convenient and

CentOS7 is used to install GitLab, localization, mailbox configuration and usage, and centos7gitlab   Synchronization starting: http://www.yuanrengu.com/index.php/20171112.html 1. GitLab Introduction GitLab is an open-source version management