Linux

It is always necessary for the user to enter a "Y" manually when deleting a file or doing some messy dangerous operation, but if the number is a lot, manual input is a disaster, and yes was originally created to solve the problem, such as this

Process ManagementView processProcess ControlJob ControlProcess priority======================================PS Process SnapshotView processes running on the current terminal #ps #ps Aux#ps AUXFA can only view all terminal processes U Show process

Network settings in LinuxLinux systems have powerful network functions, such as routing, bonding, and so on.I. Basic network configurationOnce the Linux system installation is complete, the network card configuration file is automatically generated,

First, the System user group:1. See which user groups the system has:1.1 Cat/etc/group View all user groups in the system1.2 Groups view the members of the currently logged in user group2. Create a user group:2.1 Groupadd Test_group3. Modify a user

1. File Rights Management 1. Switch User identity: SU command If you are from an administrator to a normal user, you do not have to use a password, but from a normal user to an administrator user, you need to enter a password. This

1.bios: A program on the motherboard that determines which piece of boot media the computer reads the operating system from.2. HDD minimum unit is sector, a sector 512byte, the computer starts the first read sector called "Master Boot Record" (MBR),

1. Introduction to external equipment (1.) Classification of hard disks: IDE hard disk,/dev/hda hdb,hdc ... After partitioning:/dev/hda1/dev/hda2 SCSI HDD:/dev/sda SDB,SDC .... After partitioning:/dev/sda1/dev/sda2

In a Linux system, it is not normally used because root has too much authority. Login root is only used in some special casesPerform administrative tasks, typically using the SU and sudo commands for temporary use of root permissions.1.su and sudo

----- -----Add Delete Useruseradd 新用户名userdel 用户名Output Unix Timedate +%sCommand alias, prompt style, terminal color scheme, need to edit the following file/root/.bashrc/home/用户名/.bashrcTo modify the hostname, you need to modify the following

In view of the construction, the reference online a lot of information, online information in useful, but also pit a lot of peopleThe purpose of this article is to let the successor in the build SVN server no longer make a mistake, no longer by the

1th SED Foundation 1.1 sed Option Stream Editor-R supports extended regular-N cancels the default output-I direct modification does not output to the desktop-i.bak BackupThe writing format of 1.2 sedSed ' conditional command 'Sed ' pattern command

First, headGrammarHead [-n-k] ... [FILE] ...K is the numberThe default is to display the first 10 rows.head/etc/passwdShow first 5 lines at the beginningHead-5/etc/passwdHead-n 5/ETC/PASSWD (Note and the following have--differences)Head-n

0. Basic commandpwd 查看当前目录ls 查看当前目录所有文件夹和文件mkdir 新建目录mkdir -p a/b/c 创建多级目录 touch 新建文件cat 查看文件clear 清屏shutdown 关机shutdown -h now 立刻关机reboot 重启系统1. Check Hardware information查看cpu cat /proc/cpuinfo | grep "cores" 查看内存 cat /proc/meminfo | grep

Start process OverviewAs an example of a Linux host set up by our PC, when we press power, the computer hardware will actively read the BIOS to load the hardware information and the hardware system self-test, then the system will actively read the

Ext.: http://www.wowotech.net/linux_kenrel/233.htmlLinux kernel Memory recovery mechanismItrocker Released: 2015-11-12 20:37 Category: Memory managementNo matter how much memory is available on the computer, Linux kernel needs to recycle some of the

1 to see if Port 8010 is occupied[Email protected] ~]# Netstat-an|grep 8010TCP 0 0 0.0.0.0:8010 0.0.0.0:* LISTEN2, view 8010 is why the program occupies[Email protected] ~]# lsof-i:8010COMMAND PID USER FD TYPE DEVICE SIZE NODE NAMEJava 25402 root

1. Configure Tomcat to save the process number to the $TOMCATHOME/bin/tomcat.pid file after booting.To modify the $tomcat_home/bin/catalina.sh file, add the catalinapid parameter line below the Prgdir line, as follows: Prgdir=dirname

1.linux system Start-up process1. Load the BIOS hardware information to get the first boot devicePower-on-self-test, power-on self-test, is a major part of the BIOS function. Responsible for the CPU, motherboard, memory, hard disk subsystem, display

Requirements Description:Today check the host of a software Ghostscript, ready to delete, first look at the software depends on which software,And what software depends on it?Operation Process :1. See what software This software depends on (RPM

Axel Plugin is a multi-threaded download based on Yum01. Downloadwget http://www.ha97.com/code/axel-2.4.tar.gzwget https://files.cnblogs.com/files/xiaochina/axel-2.4.tar.gz02. Compile and installTar zxvf axel-2.4.tar.gzCD