Linux

ERROR 1819 (HY000): Your password does not satisfy the current policy requirementsSELECT @ @validate_password_length;Mac MySQL error must reset your password using ALTER USER statement before executing this statement.SET PASSWORD = PASSWORD (' Your

Linux under Cmatrix installation processwget http://www.asty.org/cmatrix/dist/cmatrix-1.2a.tar.gzTar xvf cmatrix-1.2a.tar.gzCD cmatrix-1.2aYum Install Ncurses-devel./configure && make && make installCmatrix Instructions for useCmatrix [-ABBFLOHNSVX]

Cd.. /Top level Directoryls All files in the current directoryll all the files in the current directory for more informationcommand format [options] [parameters]CD (command): (This is the parameter)mkdir created file name; Common folder,

Today read "White hat Talk Web Security" a book, see the author talked about how Linux to achieve true random number generation, feel very useful, recorded#include using namespacestd; #include#include#includeintMain () {intRandoms=open ("/dev/random"

The command to add users to the system under Linux is:useradd the command is equivalent to adduser.# Useradd WangAfter adding the user will also have to set the user's login password, use Usermod and passwd can be set password, but Usermod has a

1. Download tar.gz version of Ant from http://ant.apache.org2. Copy to/usr3, Tar-vxzf apahce-ant-1.9.2-bin.tar.gz decompression4, chown-r yjdabc apahce-ant-1.9.2 Change PermissionsChown-r: Users apahce-ant-1.9.2Chmod-r +x apahce-ant-1.9.25,

Just remember some assorted.Installing the Bash-completion software, pressing the TAB key after some commands, will make the option, parameter completion function.To hit a command, press TAB, complete a command or file, press two tab to display all

After installing Kali Linux 2.0, the first thing to do is to add the source and update the system, otherwise there will be software positioning problems.In Kali 2.0, VMware Tools is no longer available, and the official release of a tool to download

Original Reference articleInstalling the configuration JDK Unzip the JDK package cd /usr/local/ tar -zxvf jdk1.7.0_45.tar.gz # 解压成功后会有一个 jdk1.7.0_45 的文件夹 Configure environment variables Vi/etc/profile # At the end of the file, add the

1. Why should I have the concept of a user?Multi-user, multi-tasking business needs to isolate system resources2. What are the categories of Linux users?　　2.1 . Administrator user has permission to manipulate all files 2.2 The system user is also

1. How can I print out a line with a user UID greater than 500 in/etc/passwd?Awk-f ': ' $ > '/etc/passwd2. What does NR,NF two variables mean in awk? Awk-f ': ' {print $NR} '/etc/passwd will print out what results?NR denotes the number of rows, NF

Learn to install Ubuntu Graphics tutorial based on VirtualBox virtual machine install Linux operating system on your notebookBy asking students and searching the internet to search Baidu, completed the installation of virtual machines, began the

command to enter VIVI FileName: Opens or creates a new file and places the cursor at the beginning of the firstVI +n FileName: Opens the file and places the cursor at the beginning of nthVI + FileName: Opens the file and places the cursor at the

Recently need to hit the code on the tutorial, but before the compression package on Windows after the Linux decompression has been garbled, mainly in the file garbled, the file name is still normal. Search "Linux rar extract garbled " tried a lap

1: Nic File/etc/sysconfig/network-scripts/ifcfg-eth0[[email protected] scripts]# Cat/etc/sysconfig/network-scripts/ifcfg-eth0device=eth0 # # Physical device name, Eth0 is the first NIC; e Th1 for the second NIC Hwaddr=00:0c:29:84:0c:21 # # network

Ideas: 1, virtual machine to increase the capacity of the disk;2, increase the capacity of the disk to the system partition;Preparation phase:Download gparted software: https://sourceforge.net/projects/gparted/files/gparted-live-stable/First step:

1. The results of the execution using the LS-L command are as follows (/var/log):Drwxr-x---2 root adm 4096 2013-08-07 11:03 apache2Drwxr-xr-x 2 root root 4096 2013-08-07 09:43 AppArmorDrwxr-xr-x 2 root root 4096 2013-08-07 09:44 apt-rw-r-----1

English version of this article from: http://www.ghacks.net/2009/04/04/get-to-know-linux-the-etcinitd-directory/The following is the author's own version of the translation, if you want to reprint to other sites outside CSDN, please indicate this

Linux echo adds color to textExample:# echo-e "\033[41;1m ' cat/log/aa.txt | grep 81% ' \033[0m ' >/log/aa2.txtNote:1, 41 means red,2. This setting only takes effect under Linux and does not take effect in windows or mailControl Option Description:\3

Transferred from: http://www.cnblogs.com/mahang/archive/2011/09/01/2161672.htmlThe VI Editor is the standard editor for all UNIX and Linux systems, and its power is not inferior to any of the latest text editors, here is simply a brief introduction