Linux

Download TOMCAT7Go to the official website (http://tomcat.apache.org/) Download, here I choose to download the version is Tomcat7.0.77Unzip the installationThe downloaded file will be in the "downloads" directory of the currently logged-in user's

Common wildcard characters:*: matches any character of any length?: matches any one character[List]: matches any one of the characters in the list[!list]: matches any one of the characters except the list[C1-C2]: matches any one of the characters in

File ViewThe more function is to start the file from the first line, according to the Output window size, the appropriate output file content. When a page cannot be fully output, you can use "enter" to turn down the line, with the "SPACEBAR" to page

Installation of SVN 　　　　#svn的下载安装命令Yun-y Install Subversion#检查是否安装成功Svnserve--version#表示安装成功 (You can see the version number in which you installed it 1.6.11)　　　　 Configuration of SVN 　　　　# Create a repository directory for SVN

650) this.width=650; "src=" http://s12.sinaimg.cn/bmiddle/003p9xWPzy7aQ4s0Icjeb&690 "id=" Image_operate_ 29791493982887943 "style=" border:0px; "alt=" 003p9xwpzy7aq4s0icjeb&690 "/>The current system core has now risen from redhat6.2 to 6.3, now

Problem: When we install ANACONDAS3, we will find that Ibus-setup is not going in.Reason:is because Ibus-setup python should use Python2.And when we install ANACONDAS3, calling Python will default to Python3 (in Linux logic, input python defaults to

Ⅰ Understanding file permissions under Linux　　The ll command details the file or subdirectory information in the current directory as shown inThe Red box labels the permissions for this file or directory"The first line of file 10.c permissions

Linux Network configuration commands (i)--ifconfig ifconfigView and configure network card information. Deprecated, using IP commands is recommendedFormat:Ifconfig [interface] To view specified NIC information, do not specifyIfconfig interface

Useradd Create users, usermod Modify user properties, Userdel delete users, groupadd create groups, Groupmod modify group properties, Groupdel delete groups. Create user command: Useradd syntax:useradd [option] ... loginCommon options:-U uid:

1. Use Fdisk-l to view hard drive detailsAnalysis:2. Partition initializationFdisk/dev/sdbAnalysis: Parsing of individual parameters1. Enter m to display all the commands listed below.　　　　　　　　2. Enter p to display the hard disk segmentation and

1. Disable Ctrl+alt+del to restart the server directly/bin/mv/etc/init/control-alt-delete.conf/etc/init/control-alt-delete.conf.bak2. Use strong passwordsThe password must not be less than 8 bits, and must contain both large, small letters, numbers

1) The program should be small and single-minded, the program should be as small as possible, and only focus on one thing. Do not develop features that look practical but are not usable in 90% of cases;2) program not only to consider performance,

1. Copy a directory and all of its files to another directorySyntax: cp-r //Example: Cp-r swbase1/swbase2/2. Unzip the tar.bz2 into a directorySyntax: TAR-JXVF -C /Example: TAR-JXVF swbase.tar.bz2-c swbase/3. View all the space occupied by a

Tag: Output port number packet address does not display system time destination host Tcpdump all packets of the first NIC are fetched by default Tcpdump-i eth0 Specify NIC Tcpdump host 10.10.10.10 specify hostname or IP address

Prompt command does not existCause: The system default environment variable is not setAnd, Ifconfig is exactly in the/sbin inside.Under Cat/etc/profile, you can find no environment variables about/sbin.Linux, accustomed to using gedit)Path=

1. Several important shortcut keys-tipsTAB key quick Fill command, table of contents, parameters使用Tab键来进行命令补全，Tab键一般是在字母Q旁边，这个技巧给你带来的最大的好处就是当你忘记某个命令的全称时可以只输入它的开头的一部分，然后按下Tab键就可以得到提示或者帮助完成。CTRL + C Force

Troubleshoot Linux server garbled: 1.vim/etc/profile2. On the previous line of export PATH USER LOGNAME MAIL HOSTNAME histsize histcontrol: lang= "en_US. UTF-8 "3. In export PATH USER LOGNAME MAIL HOSTNAME histsize Histcontrol the last new LANG. 4.

Java official website is not available in addition to the latest version of the JDK download, download JDK1.7, password: RSQGThe native Linux system is Centos6.9, the Java is not installed natively, the installed Java needs to uninstall first,

Transferred from: http://blog.sina.com.cn/s/blog_64b9c6850100ub80.htmlLinux the process communication methods in the system are mainly the following:How processes communicate on the same host* UNIX interprocess communication: including pipes (pipe),

Alias unalias command summary, aliasunalias command Function Description: sets the command alias. Syntax: alias [alias] = [command name] Explanation: 1) show the list of existing aliases without adding Parameters 2) set the alias: alias NAME =