Linux

Add a new SATA disk 4Glinux-0k5g:~ # fdisk-lDISK/DEV/SDA:8589 MB, 8589934592 bytes255 heads, $ sectors/track, 1044 cylindersunits = cylinders of 16065 * = 8225280 Bytesdisk i dentifier:0x0002ba94 Device Boot Start End Blocks Id system/dev/sda1 1

0. Load the virtual hard disk:1.add disks to view disk status[Email protected]/]# fdisk-ldisk/dev/sda:10.7 GB, 10737418240 bytes255 heads, Sectors/track, 1305 cylindersUnits = Cylinders of 16065 * 8225280 bytesDevice Boot Start End Blocks Id

NAMERhn_check-check for queued actions on the portal and execute themSynopsis/usr/sbin/rhn_check [-v] [--verbose]DESCRIPTIONRhn_check is a client program this connects to the Red Hat Network backend servers and retrieves Informa tion associated with

First, the Process Control theory FoundationProcess: is a running activity of a program with a certain independent function. The program is static and the program runs as a process.1, the characteristics of the process:Dynamic: Distinguishing

1. Fix a MAC address, especially when using multiple virtual machinesIn the Linux environment:Log in as root and add these three sentences to the/etc/rc.d/rc.local.Ifconfig eth0 Downifconfig eth0 hw ether 00:0c:18:ef:ff:edIfconfig eth0 upThis

1, learn to use the TAR command compression (decompression). tar.gz file tar zxvf *.tar.gz tar jxvf *.tar.gz22, learn the simple copy CP command CP Yuan Mudi3, the ordinary user to switch to the Super User command su– su-root4, view the current

Brief introduction:Unix/linux system A remote file directory-sharing service that can share a remote file directory locally, and then manipulate the remote directory as if it were a local file.For example: A host as a server, shared out test1 This

Permissions for directories and usersFirst, Linuxfile permissions in the system1.1 Linuxthree basic permissions in the system• Definition of file permissions: Access control for a file or directory (Access restrictions)• Three attributes of a

Three basic permissions in file permission system in System• Three attributes of a file:User group owner (group): The user's primary group is the group of this file# LL-rw-r--r-- root 0 where the third and fourth columns are the user's owner and

Today added the ability to send mail, summed up, for later reference:1. Send mail directly using pipelines" hello,this is the content of Mail.welcome to www.mzone.cc " " Hello from mzone.cc by pipe " [Email protected]2. Use text to send" Hello from

Partition:[Email protected] ~]# fdisk/dev/Sdbwarning:dos-compatible mode is deprecated. It's strongly recommended toSwitch off the mode command'C') and change display units to sectors (Command'u'). Command (M forHelp ): nCommand action E Extended P

Disk Composition: Disc, robotic arm, head, spindle motor. The data is written on the disc.The disc can be subdivided into sectors and cylinders. Each of the sectors is 512bytes.The hard disk includes multiple disks, and the smallest unit of each

LinuxView Linux system version information1. View the kernel version1) Method One: Log in to Linux execution cat/proc/version[Email protected]_32bit_ip12 ~]$ cat/proc/versionLinux version 2.6.18-194.el5 ([email protected]) (GCC version 4.1.2 20080704

1, Build Users:AddUser PHPQ//New PHPQ Userpasswd PHPQ//Set password for PHPQ user2. Build Working GroupGroupadd test//New test Workgroup3, new users at the same time increase the Working groupUSERADD-G test PHPQ//new PHPQ user and added to test

[[Email protected] ~]# time DD If=/dev/zero bs=1024 count=1000000 of=/1gb.fileRecorded 1000000+0 read-inRecorded the writing of 1000000+0.1024000000 bytes (1.0 GB) Replicated, 11.6493 sec, 87.9 mb/secReal 0m11.690sUser 0m0.544sSYS 0m10.996s[email

After installing the Linux mint17, entering the mint system requires a suitable Chinese input method first.First, ushered in is the installation of Chinese input method, I heard that Sogou for the Ubuntu kinly custom Input method, so you want to

Precautions for running Linux for loop commands: If the for loop command contains some symbols, you must use(). For I in {1 .. 4}; do(Python/data/UGCRobot/manage/Scheduler. py 1.log>/dev/null 2> & 1 &); Done Linux: execution sequence of the

[Linux] learning notes installation and learning environment (sshd, lrzsz), sshdlrzsz Next to the previous article, after installing Linux in VMWare, we need to use a remote tool to connect to the virtual machine. We used to use Putty all the time.

Autotools induction, autotools Recently, many linux projects are used for compiling autotools. Autotools is an automated compilation tool. The main function of Makefile is to generate Makefile. Because Makefiel is directly written, its dependency is

Test the accidental deletion of data during linux recovery and test the accidental deletion of data during linux recovery What we need to do immediately after accidentally deleting the data: Do not write, do not save, detach the disk where the