Linux

Recently found in the work of the regular use of some repetitive commands, regular modification of some long-term, it is necessary to science and the shell Command line some common shortcut keys, so that everyone save time to improve efficiency.All

First, Introduction AutoJump is a command-line tool that allows you to jump directly to your favorite directory without having to worry about where you are now. Second, installation Yum Install autojump-zshThird, usage J [part of the name or name

To understand the basic file system permissions:Impact of permissions on files on the directoryR (Read) can read the contents of the file to list the contents of the directory (file name)W (write) can change the contents of a file to create or

First, how is the process of network communication? The process of socket communication?There are many ways to communicate between different processes on the same machine, primarily by using message passing or shared memory. While the process across

First, IntroductionOne of the more difficult aspects of kernel development than user space development is the difficulty of kernel debugging. Kernel errors often result in system outages, which can be difficult to preserve on-site when errors occur.

CentOS 6.5Using the key to authenticate the login is to modify the SSH configuration file. SSH service-related configuration files are saved in the directory/etc/ssh, where sshd_config is the SSH service configuration file, Ssh_config is the

Operating System BasicsOperating system is kernel (kernel) as the core software, it is the first expansion and transformation of computer hardware, mainly to complete the scheduling and allocation of resources, information access and protection,

Under Linux, if there is a delay in the network, we usually need to analyze our own network environment to the peer server.1 Example: Ping www.baidu.com 2 Traceroute www.baidu.comThrough analysis to determine what is probably the problem, but

The problem is that you want to see where the startup script for the process is, such as the WebLogic startup script that you wrote, but where you forgot to put it, you can use the following methods1, using Ps-ef |grep xxxxx Get the PID of the

First, Whereis find Software Installation path-B finds only binary files-m only find help files-S find source code only-U excludes the specified type file-F Show file name only-B Find binaries in the specified directory-M Find help files in the

Mount the new hard disk after the input fdisk-l command to see the current disk information can be seen in addition to the current first hard disk and a second hard disk SDB, and then partition into the Fdisk command with FDISK/DEV/SDB, enter H can

1. RAID basic concept and mdadm implement soft raid2, Mdadm command and bash Loop advanced3, Linux management of LVM detailed4, compression decompression and the use of archiving toolsOne, raid:redundant array inexpensive Disks inexpensive redundant

Original address: http://unmi.cc/windows-linux-port-forwarding/Here's a look at some of the port forwarding tools I've used-port mapping, port redirection, and NAT-are similar concepts.Linux uses the NAT function of a firewall under

Some network-picked hpc materials and network-picked hpc Materials Source from: https://computing.llnl.gov   Factors determines a large-scale program's performance 4 * Application related factors: 5 * algorithms 6 * dataset size 7 * Memory Usage

How to Implement Batch Tasks in ArcGIS for Desktop? ModelBuilder is one of the most lovely functions of ArcGIS for Desktop. It can free us from repetitive work as much as possible without code. The process of using ModelBuilder is often compared to

RedHat7 build yum source server1. create a directory # mkdir-p/content/rhel7.1/x86_64/{isos, dvd}/2. upload the RedHat installation CD image, the uploaded path is/content/rhel7.1/x86_64/isos/rhel-server-7.1-x86_64-dvd.iso 3. set the boot auto mount

Global installation of Composer in LiunxI put it in the PATH directory of the system so that it can be accessed globally. Curl-sS https://getcomposer.org/installer | phpmv composer. phar/usr/local/bin/composer Note: if the appeal command fails

U-boot port to tiny6410 step, u-boottiny6410 step 1. Modify the top-level Makefile file 2. Modify arch/arm/cpu/arm1176/cloud64xx/cpu_init.S 3. Modify arch/arm/cpu/arm1176/cloud64xx/Makefile 4. Modify arch \ arm \ include \ asm \

Install the jdk of tar.gz.pdf under linux, and configure the environment variable, tar.gz jdk Recently, to learn a technology that must be run in Linux, I began to learn how to use Linux. It took one day to complete the setup of environment

. Tar.gz(bzor bz2 installation, .tar.gz bzbz2 Installation Tar.gz (bz or bz2)I. Installation1. Open a SHELL, that is, the terminal2. Run the cd command to enter the directory where the source code package is located.3. Extract files based on the