Linux

First, the user account of the increase, delete, change, check1> Add user------UseraddNote: 1, user name should not be a pure number or start with a number2. Change the login shell to/sbin/nologin to prevent users from logging inFormat: useradd

Today we will introduce the fourth command: mkdir. mkdir (Make directory creates a directory): Creates a directory if the specified directory does not exist. When you create a directory, you are asked to write permissions for the user who created

Environmental information:CentOS Release 6.8tomcat-8.0JDK1.8First, start Tomcat#sh/root/tomcat-8.0/bin/startup.sh#tailf/root/tomcat-8.0/logs/catalina.out --aug- . A: -:31.661INFO [main] org.apache.tomcat.util.net.NioSelectorPool.getSharedSelector

IfconfigPing IP AddressHelp: PING-T IP AddressPING-C Number of IP addressesSize of the Ping-s packageShutdown Restart:Shutdown-h nowRebootClear screen: Clear = = Ctrl + LDelete line Ctrl + u before cursorThe history! Command numberAliasDefinition

Linux version epub ReaderThis article navigation -1. Calibre09% -2. FBReader23% -3. Cool Reader33% -4. Okular44% -5. Ppub51% -6. epub63% -7. Sigil74% If it is the mainstream of a tablet computer, reading on a

LS Lists the sub-files in the current directoryLs-l the sub-file details in the current directory, of course, with "LL" can alsoLs-a list all files, including hidden files——————————————————————Create an empty directory mkdir the subordinate

1 What is BondThe network card bond is a kind of common technology in the production scene, which is bound by multi-net cards as a logical NIC, which realizes the redundancy, bandwidth expansion and load balance of the local network card. Kernels 2.4

I. Introduction to iSCSIISCSI (Internet SCSI) supports sending SCSI commands to SCSI storage devices (targets) on remote servers from the client (initiator) via IP. The iSCSI qualified name is used to determine the initiator and target, and to use

There are differences in the partitioning and file system formatting of large data disks and small disks. The market must use the  GPT  partition format,  can no longer use the small disk  MBR  partition format. mbr  partition format: The largest

The two scientific computing packages under Python SciPy and numpy are more dependent, and the installation process is more complex.Individual installation packages:scipy-0.19.0 Download: https://github.com/scipy/scipy/releasesnumpy-1.9.0 Download:

The Trojan Horse is uploaded to the Linux server via the Web upload directory. Strict restrictions on file types and upload locations that users can upload User-uploaded file permissions on the server are set to readable The user's

(1) Enter the NIC configuration directory[Email protected] ~ #]cd/etc/sysconfig/network-scripts/Comments:CD indicates which level of directory to enterCD behind and directory to add a space, otherwise will be reported no such file or directory

Nmon (named Nigel's Monitor) is a computer performance system monitoring tool developed by IBM employees Nigel Griffiths for AIX and Linux systems. Nmon can display the operating system statistics on the screen or stored in a data file to help

IntroductionThe top command is a common performance analysis tool under Linux that shows the resource usage of individual processes in the system in real time, similar to the Task Manager for Windows.Top display system current process and other

First, view and manage the currently logged in user 1. Use the W command to view the process information that the logged-on user is using,and the W command to display the names of the users who have logged in to the system and what they are

System Recovery1. System Startup processPower||BIOS (in read-only storage on the motherboard, basic input or output system)function, hardware detection, activation hardware||Grub System boot (grub boot divided into two stages)1) Stage 1 MBR (Master

Design and Implementation of Linux kernel (1)-kernel introduction, This article briefly introduces the basic concepts related to the kernel. Main content: Single Kernel and micro kernel Kernel version number   1. Single Kernel and micro kernel

Analysis on the scale-in; 1. Quality control experiment design; dual-End sequence merging; quality control experiment designThis article uses HiSeq2500 PE250, the most popular type of sequencing data, as an example, combined with the current

Linux ftp installation configuration and linuxftp installation Configuration 0. install ftpThe precondition is to disable SElinux. # Vi/etc/selinux/config Modify SELINUX = "disabled" and restart the server. Skip this step if they are the

Transcription group entry (5): Sequence Comparison and transcription entryTask List Comparison Software Hisat2 usage Download the index file Comparison, sorting, and Indexing Quality Control Load IGV, several genes Hisat2 is compared to the