Linux

method One: Use Oracle's own Runinstaller offload:[Email protected]/]$ Cd/opt/oracle/product/11.2.0/dbhome_1/deinstall/[[email protected] deinstall]$ export lang=en[ [Email protected] deinstall]$./deinstallmethod Two: Uninstall by deleting the file:

I. Installing the yum source with MySQL configuration# Install the Yum source for MySQL, below is the RHEL6 series of RPM-UVH http://dev.mysql.com/get/mysql-community-release-el6-5.noarch.rpm# Installing Yum-config-manageryum Install yum-utils-y#

Inter-process Communication modeInter-process communication methods include pipelines, shared memory, signals, semaphores, message queues, sockets.Purpose of inter-process communicationThe main purpose of inter-process communication is: data

Add a variable in the. bash_profile file in the user directoryUse VI to add variables to the. bash_profile file in the user directory, and change the amount to be valid only for the current user and be "permanent".Vim/root/.bash_profile　　　　　　# .

To add a scheduled task:-/etc/crontab #这种方式进去的文件有个sample可供参考To view the tasks that have been started:Crontab-lTo view the running status:Service Crond Status/sbin/service crond start/sbin/service crond stop/sbin/service crond restart /sbin/ Service

To add the catalina.sh under Tomcat's bin, position cygwin=false before.  Note the quotation marks to be taken, red for the newly added. # OS specific support. $var _must_ is set to either True or false.java_opts=

Linux Group basic Description each user in Linux must belong to a group and cannot be independent of the group. In Linux, each file has the concept of owner, group, and other groups. 1-AHL Modify the file owner Directive chown user name File name

1.TAR-XZVF file.tar.gz//Decompression TAR.GZ2.NETSTAT-ANP | grep portno3.df-k "command, display disk usage and occupancy in M du-k/home" command, listing the size of all files or directories in the directory, in kilobytes, as the unit of measure

Everything under Linux is a file./bin is the abbreviation for binary, which holds the most frequently used commands/sbin S is the meaning of super user, which is a system manager used by the system administrator./Home Stores the master directory for

First, DirectoryDirectory: Also a file, which is a mapping of paths.1. Create Directory command: mkdir/tmp/mydir/my-p create my directory under/tmp/mydir/,-p if no/tmp/mydir is created; mkdir my directory is created in the current directory.2. View

In the site service area software, in addition to the Apache HTTP service, there is a lightweight HTTP services software---NginxYou can refer to the lamp I wrote earlier, roughly the same. Install the required environment Yum install gcc gcc-c+

1, resolve the domain name to the corresponding server IP2. Find the Tomcat installation path into/conf3, VI Server.xml4, modify Change to 5. Add after Unpackwars= "true" xmlvalidation= "false" Xmlnamespaceaware= "false" > 6, Save Server.xml (ESC:WQ)

1. Press the power button2, the system BIOS post, detect computer hardware equipment, select boot media, and look for MBR (Master boot record, in/boot partition)3, MBR (master boot record) on the hard disk 0 tracks, 0 cylinders, 1 sectors on the top

4. Document compression and decompression operationsCommon compressed files in Linux are: *.tar.gz, *.tgz, *.gz, *. Z, *bz2 and so on. The compression and decompression commands for each of the different compressed files are also different.The *.tar.

The new free command executes the following results:Free-h: Display in a more friendly wayFREE-M: Display memory usage in MIn the same vein, there are:Free-g shown in G, free-b in bytes, free-k: shown in KLine Explanation: Mem: Physical

Just started to learn Linux, record, easy to turn to look at1. Shell is the user interface of the system, which provides an interface between the user and the kernel for interactive operation. Shell is shell, Linux is kernel2, Shell Points Bash

Share a synchronization Linux system time D script, you can automatically set the system time zone for the East Eight, and synchronize the system, when the Ntpdate synchronization failure will try to synchronize with Rdate, time server us.ntp.org.cn

1. Lsof-i: Port number2. Netstat-tunlp|grep Port numbercan see which process is consuming the specified portTools/Materials Linux,windows Xshell Method/Step "Step One" lsof-iThe lsof-i is used to display conditions that

Linux query filtering, with superscript inscription segmentExample: a simple queryPs-e | grep httpdAfter grep filtering, the title is gone, but in order to look more convenient, there is a title field seems more convenient, then you can follow the

one: Xshell Linux and Windows Mutual transfer files1. First you need to install a package[[email protected] ~]# yum install-y lrzsz loaded plugin: fastestmirrorbase | 3.6 KB 00:00:00 Extras | 3.4 KB 00:00:00 Updates | 3.4 KB 00:00:00 updates/7/x86_64