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lines of the file contentsTail Hello.exe View the following 10 lines of the file contentsTail-n 5 Hello.exe View the following 5 lines of the file contentsThe file type is determined by the contents of the file, and the suffix of the file is unimportant.File hello.exe### #查看hello. exe files typeFile for view ask Price type command################################1 Kanji for 3 bytes,There is one character (bytes) at the end of each line.Wc-l Test Line count rows-M statistic character number-C Sta
use two types of databases. Oracle is the first to handle concurrency, and DB2 is responsible for data processing. SQL Server: Microsoft products can only run on Windows. The interface is friendly, without any openness, and no security certificate is obtained. It is suitable for small and medium-sized projects if multiple users have poor performance. MySQL: Oracle was incorporated into ORACLE after sun was acquired. It is widely used in small and medium-sized projects, and even large projects
255.255.255.0 U 0 0 0 eth0# # # #5. dns####1.dnsDNS is a single serverThis server provides the ability to answer the client hostname and IP correspondence2. setting up DNSVim/etc/resolv.confNameServer DNS server IP650) this.width=650; "Src=" https://s5.51cto.com/wyfs02/M01/8F/F8/wKioL1juHFeRSwttAATbaHdet28187.png-wh_500x0-wm_ 3-wmp_4-s_1021100563.png "title=" image 6.png "alt=" Wkiol1juhferswttaatbahdet28187.png-wh_50 "/>vim/etc/sysconfig/network-scr
'/dev/disk '# See mans Pages Fstab (5), Findfs (8), mount (8) and/or Blkid (8) for more info#UUID=4FC3C61C-35D0-420B-B6D7-F64E5024E564/EXT4 Defaults 1 1Uuid=978a98e0-7c14-4dd4-94cb-8c4c98652b00/boot EXT4 Defaults 1 2Uuid=11f6d932-e0c2-4484-bd2e-ab001c736581/data EXT4 Defaults 1 2Uuid=77a86bb0-335e-49b4-9be7-5fcb568b04b2/home EXT4 Defaults 1 2Uuid=b5a201c2-8b44-4194-96fa-adebe93c9a9f/opt EXT4 Defaults 1 2Uuid=f4734300-3968-4560-8f1d-9f9b4ef51ea7/var EXT4 Defaults 1 2UUID=79805C84-9A35-47FD-B439-
How to startLinuxWhen JBoss is started? Use the V script of Linux. Although there are some differences between categories, it is usually similar to this: /Etc/rc. d/init. d/-contains the start and stop scripts (other types:/etc/init. d /) /Etc/rc. (x)/-contains the link for starting and stopping the script with the S or K prefix (start or kill) Users of different levels have different operation levels. Rc1.d-Single User Mode Rc2.d-Enable single-user
RedHat Linux 6 desktop Installation 1. Configure the yum LibraryThe virtual optical drive in Virtualbox is located at/dev/sr0. Therefore, after loading the RHEL6.5 image to vmware, you can configure the yum library.1. Mount the image[Root @ db01 ~] # Mkdir/media/rhel[Root @ db01 ~] # Mount-o loop/dev/sr0/media/rhel2. Enable Automatic Image mounting upon startupAdd the following sentence at the bottom of/etc
version (Micro Cloud uploaded)# RPM-IVH python-urlgrabber-3.9.1-11.el6.noarch.rpmInstall and reinstall the package you just made an error4. Download the Centos6-base-163.repo file to the http://mirrors.163.com CentOS Help document, store it in/etc/yum.repo.d/, or download it by command:# wget Http://mirrors.163.com/.help/CentOS6-Base-163.repo5. Edit the Centos6-base-163.repo file and change the $releasever to the CentOS version number[ Error descri
Redhat Linux AS4 install Oracle 10g (10.2) 1. Hardware requirements (1) memory> 1024 MB Memory swap Partition > 1024 MB 2 times memory > 8192 MB 0.75 times memory Display memory commands 2)/tmp> 400 M 3) detection command Memory # Grep MemTotal/proc/meminfo Swap Partition # Grep SwapTotal/proc/meminfo /Tmp Partition # Df-k/tmp Cpu Information # Grep "model name"/proc/cpuinfo 2. software requirements 1) O
Mysql-community-libs-compat Shared compatibility Libraries for previous MySQL installations mysql-community-embedded MySQL Embedded Library Mysql-community-embedded-devel Development header files and libraries for MySQL as a embeddable library Mysql-community-test Test Suite for the MySQL server Its specific name structure is as follows:PackageName -Version-distribution-arch. RPMVersion does not have to say, in
Novice started to learn Linux, put some basic things summed up. The wrong place to look. 1, Linux graphics interface and command interface to switch A Redhat Linux system is installed inside the virtual machine. The default entry is the graphical interface. Switching from the Linux
of the effect. v. Access to Linux via WinSCPDownload a winscp, download after installation, run in fact and Putty almost host name fill in the hostname ip,user name fill in the username, password fill in the password, save the button before the login button to enter the vi. SSH ConfigurationSSH profile directory:/etc/ssh/sshd_config port SSH preset ports, you can repeatedly use port to define multiple port
acting as router one client Linux 1 only need to turn on the httpd service, but let the network card information to be clear Linux 2 acts as a router dual NIC configuration one for 192.168.100.1 a 12.0.0.1 One client IP address is 12.0.0.33 Start the experiment Interconnection, of course, can only be flat-pass Gateway [[email protected] ~]# iptables-f Clear all chains [[e
systems, but since we have a grid, it can also be built on ASM disk groups. Vi. creation of ASM disk groupsWe go into the bin directory of the grid and execute the ASMCA command Then create an ASM disk group Specifying ASM Disks Change the path to our ASM disk to sit in the pathOur ASM disk is under this path The ASM disk is discovered when the modification is complete. We name the disk group data and the redundancy mode is external.Then crea
Http://www.ategpu.com/2009/06/04/redhat-as-5-vncserver%E5%8F%8Avncviewer%E7%9A%84%E8%AF%A6%E7%BB%86%E9%85%8D%E7%BD% AE .html Configure VNC # Vi/etc/sysconfig/vncservers Find the vncservers = "1: myusername" string, remove the comment, and change myusername to your logon username. Save and exit. Find the vi. VNC/xstatup File Leave unset session_manager Exec/etc/X11/xinit/xinitrc (remove comments)
# #查看和编辑权限信息, Root gives permissions to ordinary usersThe edited content is the/etc/sudoers fileUser name + hostname + "" (root) + NOPASSWD permissionsTest desktop0.example.com = (root) nopasswd:/usr/sbin/useradd,/usr/sbin/userdelNormal User Runsudo useradd test2sudo userdel test2Add sudo to the front to indicate the use rightsWatch-n 3 ' tail-3/etc/shadow '/etc/shadow # # #查看用户密码信息CHAGE-M Username # #改变密码最短有效期-M username # #改变密码最长有效期-W 7 username #
. Compilation and installation:There's nothing to say. Just use the following command. $ Make# Make install # Remember to run with root. After installation, the executable file is in/usr/local/vim7/bin /. 4. Install it in the system:At this time, vim7.0 is installed, but when you run VI, Vim, or vimdiff, whether to enable the VI 6.1 version that comes with RedHat
Redhat Linux FTP Configuration File Transfer Protocol (FTP: FileTransfer Protocol) enables files to be shared between hosts. FTP uses TCP to generate a virtual connection for controlling information, and then generates a separate TCP connection for data transmission. Control connections use TELNET-like protocols to exchange commands and messages between hosts. The file transfer protocol is used by two compu
Recently installed in the virtual machine rhel_6.5_x86_64, found unexpectedly do not bring g++, there is no way to "Yum install gcc-c++", helpless failure, the reason is that the Redhat yum is charged ...So I plan to rage with other free Linux yum sources and look at CentOS.I do not know why the 6.1~6.5 on the CentOS network is not supported by the update (the other mirror site is not on the nature), so sel
Groupdel GroupName # #删除组Visudo # #查看和编辑权限信息, Root gives permissions to ordinary usersThe edited content is the/etc/sudoers fileUser name + hostname + "" (root) + NOPASSWD permissionsTest desktop0.example.com = (root) nopasswd:/usr/sbin/useradd,/usr/sbin/userdelNormal User Runsudo useradd test2sudo userdel test2Add sudo to the front to indicate the use rightsWatch-n 3 ' tail-3/etc/shadow '/etc/shadow # # #查看用户密码信息CHAGE-M Username # #改变密码最短有效期-M userna
Recently a Oracle11g-1_64 has been deployed on a DELL T710_x64 machine in the unit, a lot of information from the Internet, comprehensive installation was successful, the following is the installation steps summary, my machine configuration is as follows: Server: DELL T710-64 bit CPU: E5520 64-bit × 2 Memory: 8 GB Hard Disk: 1 Tb x 3 RAID 5 2 TB Operating System: RedHat linux 5.4 Hard Disk Partition: /: 60
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