Linux

Install the jdkrpm package (JDK-7u17): http://Www.oracle.com/technetwork/java/javase/downloads/java-archive-downloads-javase7-521261.html#jdk-7u17-oth-JPR# Yum Install wget-yjdk:http://download.oracle.com/otn/java/jdk/7u17-b02/jdk-7u17-linux-x64.rpm?

Everyone has his own dream, I want to write it out.Special permissions on the Linux file systemSUID, SGID, Sticky ( Sticky position )1 file Basic PermissionsR Read , W Write , x ExecutionUser, group, other2 Security ContextPremises: The process has

I. Basic network configurationsetup 永久网络设置 （IP 网关 DNS）vim /etc/sysconfig/network-scripts/ifcfg-eth0 (网卡信息文件)route -n 查看网关设置DNS vim /etc/resolv.connameserver 114.114.114.114netstat -an 查看网络状态 netstat -rn 查看网关netstat -tlun t tcp u udp

SedStrem Editor EditorThe SED editor is a row-by-row processing of the contents of a file. The content being processed is stored in the pattern space (buffer), and the output or file is modified as specified by the option when processing is complete.

 The previous article introduced the concept of Linux drive, and the basic classification of device drivers under Linux and the basis and difference of each classification, this article describes how to write a simple test driver like Hello World.

The most commonly used packaging command under Linux is tar, which can be compressed with other commands when packaged with the tar command. How to use the TAR commandTar command[[Email protected] ~]# tar [-cxtzjvfppn] files and directories

Methods that are not feasibleInitially I changed directly catalina.sh , adding JAVA_OPTS the variable to the-server-Xms1G-Xmx1G-XX:+UserG1GCIt didn't seem to be a problem at first, but when the server ran for a few days, it found that the runtime

First, install the virtual machine (this article takes VMware Workstation 12 as an example)1. On-line all virtual machines and download.2. Find the download file to install3. Always Next4. Next is to choose the installation of the directory, of

Touch create file or update file timestampFormat: Touch parameter file nameParameters:-C: Do not create a file that does not exist-M: Update only modified time, not update access time-A: Update access time only, not update modification time-R file:

1. chdir modify the working directory of the current process (Man 2 chdir view)int chdir (const char *path); //path Pathint fchdir (int fd); //fd File descriptorReturn value: 0 successfully returned, failure returned-1.2. GETCWD get the working

Recently using Xubuntu 14.04 to learn C language programming, found the codeblocks this relatively convenient and simple, suitable for me this kind of novice IDE. Before I used Codeblocks10.04, its code auto-completion and auto-indentation gave me a

The Linux commands used in the past must be good at summing up.How do I see the Linux file system type?1. The DF command reports the file system disk space utilization , using the-t option to display the file system type for a particular partition

First, Introduction1, Linux has many recurring tasks, these tasks are completed by the cron daemon, so cron This system service is started by default.2, Linux scheduling tasks are divided into two categories: System task scheduling and user task

Linux Disk ManagementI/O port:i/o device AddressBlock devices: block, Access unit "blocks", diskCharacter device: Char, Access unit "character", keyboardDevice files: Associate to a device driver to enable communication with the corresponding

recently learning to copy files in linux command CP, the learning record is as followsCP [option] Source (source file) destination (destination file)CP [Options] Source1Source2 Source3Source4source5 ... directoryCP command can copy files or folders,

1. Introduction and practice of soft and hard Links 1.1 link conceptIn Linux systems, links are broken down into hard links and soft links. With the default without parameters, the Execute ln command creates a hard link.A link is a link that is

1.lspci, Screenfetch and other instructions stuck, shut down the problem of the cardThe native graphics card size is hd610+gtx950mGoogle the solution is to add Nouveau to the blacklistThen the N-card driver is directly loaded.Try closed source Drive

basic commands for viewing network performance in a Linux environment because Linux often uses a character interface, and Linux is more powerful, with default routing capabilities, which are equivalent to gateways and routers. The network

Tomcat, whether it's Windows or Linux, is unpacked and then configured to work. You must install the JDK before you install Tomcat, and we can generally develop it by joining Tomcat in Eclipse.What is Tomcat?Installing JDK and Eclipse can be found

View the memory occupied by a program running in CentOS Method 1 Top-p process number [yzy@node3 micro-service]$ top -p 20490top - 16:50:32 up 6 days, 2:18, 1 user, load average: 0.00, 0.01, 0.05Tasks: 1 total, 0 running, 1 sleeping, 0