Linux

First step: Download the JDKThis example uses JDK-7U5-LINUX-I586.RPM package, login to http://www.java.com download. Step Two: Check file permissions and installation status1. Log in to the system as root, and view and modify the

A new test account, SU after using the Visudo command, found not available, quit Putty, directly with the root login, you can use, small white,Visudo can only be executed with root , simply write down the Visudo command itVisudo to get the format

Content one: test Report related instructionsReal name Chering HelpOriginal works reproduced please indicate the sourceLessons learned: Linux kernel Analysis MOOC courseLinks: http://mooc.study.163.com/course/USTC-1000029000Content Two: executable

Touch modify file time or create a new fileFile time is divided intoModification Time (Mtime): When the file content is changed, it will be updatedStatus Time (CTime): When the file status changes, it is updatedAccess Time (Atime): When the archive

Add the following code to the/etc/profile file.The following code will be under the directory/tmp/monitor, according to the login user to create a directory, for example, if logged in with the root user, will create a root directory under

has been under the development of windows, when the need to download firmware to the Development Board, is generally open a TFTPD32, set the firmware folder, everything is OKNow switch to Linux and see how the server operating system is superior in

Introduction:In the five major components of the Linux kernel, the process Management module is a very important part of it, although it is not as complex as memory management, virtual file systems and other modules, and not as coherent as the

Transferred from: http://www.cnblogs.com/edwardlost/archive/2012/07/27/2611536.htmlDeleteCTRL + D deletes the character at the cursor location equivalent to VIM x or DLCTRL + H deletes the character in front of the cursor, which corresponds to the

PC side: Ubuntu/linux MintDevelopment Board: Qq2440v3, Guangzhou friendly arm. Resources are as follows:->CPU processor???? -Samsung s3c2440a, frequency 400MHz, Max 533MhzSDRAM Memory:???? -On board 64M SDRAM???? -32bit Data bus???? -SDRAM clock

Original address: http://forum.cookiex.org/cookiex-thread-2666-1-1.htmlI was a long time ago RHCE exam When writing the post, that forum is my teacher they made, statement: The individual did not advertise the suspicion ~ ~ ~. Mainly I really do not

I. Directory structure1. Directory features the distribution of many Linux systems is based on the FSSTND standard, which is characterized by the simplicity of the root directory, which contains only the most basic files of the system, and follows

Under Linux Everything is a file, a directory is a file, and the hardware is also a file. Therefore, the underlying file operation is particularly important.1. List the contents of the directory:ls no directory listed in the current

Cal: Calendar date: Date BC: Calculator (Scale=number, that number is the decimal digit) echo $LANG (language) $PATH (environment variable) ...Sync:Synchronizing data to the hard diskShutdown:The usual shutdown instructionsreboot, Halt, Poweroff:

There are two types of task plans:1. Perform a task at some point in the future;2. Perform a task periodically; cronCron allows the system to perform a specified work at a specified time, and we can use the CRONTAB directive to manage the cron

Overview of a startup process (Keyword:bios,bootloader,kernel,init)① power-on self-test, through the BIOS read hardware information, so as to determine the first boot device, find Bootloader (Grub,lino), etc.②bootloader loading the kernel, the

Linux-(1) Linux tree file system structure and the role of each folder, linux-tree The Linux File System is an inverted single tree structure. The root of the file system is "/" Everything in Linux is a file. As shown in: Each folder has

How to adjust the number of processes opened by Linux UsersHow to adjust the number of processes opened by Linux Users  1. view the nproc (max user processes) command   [root@vm-cdh4 ~]# ulimit -u14866  2. Modify nproc Temporary modification.

Linux Study Notes (System daily management-1) W: Loadaverage: the first number indicates how many processes are active in the cpu If it is not greater than the number of cores, It is not high. If the number of three cores is greater than the number

Linux Study Notes (System daily management-2) Linux packet capture tool Tcpdump-nn-I nic name host ip port -Wfilename: place the captured content in a file. You can view the content in the file through strings. -C number: Number of captured

Install mysql in Linux (CentOS6.5)There are many ways to install software in linux. Here we use simple and convenient yum for installation.1. Use yum to install the mysql service and client1. Check whether yum list installed | grep mysql has been