Linux

/bin directory: Executable binary (the command we're talking about: CP ls ... ), all users have the right to execute./boot directory: The boot directory, all the files required to boot the entire operating system are in this directory, the most

1.tr [-ds] SET1 ... : Can be used to delete text in a message, or to convert text messages, parameters:1)-D: Delete message SET1 this string2)-S: Replace duplicate stringRequires two strings or regular expressions, with no arguments, to perform a

GitHub Contribution cannot display resultsThis address: Http://blog.csdn.net/caroline_wendy Modify your github account1. Open a commit, such as the URL:Https://github.com/SpikeKing/Test-Yamba/commit/b5baed812c719674c89bc375e2ad87603bd113c72. At the

① Anonymouspiping (pipe)The anonymous pipe (pipe) pipe is a half-duplex method of communication, and the data can only flow in one direction. If you want to do duplex communication, you need to set up two pipelines. pipelines can only be used among

    1 /*************************************************************************   2  > File Name: boot.s  3  > Author:  Linpeng1577  4  > mail:[email protected] or [email protected]   5  > Created Time: Sun 02 Nov 2014 11:42:53  pm pst  6  *********

The script starts up and is a skill that is often used in Linux operations, and today introduces 2 common approaches:System platform: RHEL 6.4The main purpose is to test it yourself:First, edit the rc.local file in

[email protected]/4 # touch 1touch: cannot touch  ' 1 ': Read-only  File systemmount no permissions? [email protected]/0 # mount/dev/sda2 on / type ext4  (rw) proc on  /proc type proc  (rw) sysfs on /sys type sysfs  (rw) devpts on

Happy Shrimphttp://blog.csdn.net/lights_joy/Welcome reprint, but please keep the author informationSometimes we need to go to VS the Information Output window outputs some debugging information at this point, just SDM Send notification:

SU switches to root userCD/Go to root directoryLS enumerates the files and directories in the current directoryLs-l lists the files and directories under the current directory and the permissions that the current user and group havechmod Modify the

Debian and Redhat two series operating systems have different definitions of runlevel, let's talk about the operating level of the Debian series OS (Ubuntu is the Debian series OS),You can see that there is no difference between the 2~5 four

Transferred from: http://rubyer.me/blog/1613/　　Finding and replacing in a single file is simple, just don't say it. The search and replace of strings in all files in the folder will be remembered, recently deployed dozens of Linux servers, the

The Linux file system is a hierarchical tree-like structure in which the top level of the structure is the root directory "/", and then another directory is created in this directory.Catalogue Description:/Root, the file that hosts the root userHome,

Network configuration for Linux under IP:I know altogether three ways, the following simple introduction (note: The network configuration must be "root Administrator" login to configure).One1, first in the command line input "ifconfig" command, you

JDK Installation:1, download a JDK online, such as jdk-7u45-linux-x64.tar.gz;2, use the "TAR-ZXVF file name" command to extract, for example, I want to install in the/HEZW/USR directory,Then directly copy the above JDK files to the/HEZW/USR

U-boot make xxx_defconfig process analysis, makedefconfig/*************************************** **************************************** ** @ Author Maoxiao Hu * @ version V1.0.0 * @ date Dec-2014 ************************** ************************

Detailed analysis of ifconfig commands in CentOS 1.Test environment: [Root @ lvskeep ~] # Cat/etc/redhat-release CentOS release 5.4 (Final) [Root @ lvskeep ~] # Uname-r 2.6.18-164. el5 [Root @ lvskeep ~] # Ifconfig#Local Network

SSH password-free login configuration in CentOS When we installed Hadoop in CentOS, we had to configure SSH password-free login configuration. Many methods have been collected on the Internet, which cannot be solved. I started to log on with a

Troubleshooting of mount timeout in old linux nfs SystemsBackground Due to business needs, the school needs to transplant the examination system to the cloud platform. The first step is to mount the nfs storage platform of the old system A to the

Solved the problem of Nosensorsfound when the temperature is detected in linux. Today, my colleague's linux Server frequently crashes, and its model and configuration are the same as mine. Therefore, I compared the server's memory usage, CPU usage,

Permanent system time modification in CentOS When Centos is used, if the local time is not correct, the command date-s "15:15:15" takes effect immediately. However, after the system is restarted, the system time remains the same. Find the