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variable "valid only for the current shell (BASH)"The variable is defined directly under the Shell's command line using the [export variable name = variable value], which is valid only under the current shell (bash) or its child shell (bash), the shell is closed, the variable is invalidated, and the new shell is opened without this variable. You need to redefine the words you need to use.3. View of environment variables 3.1 Use the echo command to view a single environment variable. For example

The code in the page:Classid= "CLSID:8856F961-340A-11D0-A96B-00C04FD705A2" viewastext>Related js:var hkey_root, Hkey_path, Hkey_keyHkey_root = "HKEY_CURRENT_USER"Hkey_path = "\\Software\\Microsoft\\Internet explorer\\pagesetup\\"Set Header Footer page marginsfunction Pageprintsetup () {try {var regwsh = new ActiveXObject ("Wscript.Shell");Hkey_key = "header";//PageRegwsh.regwrite (hkey_root + Hkey_path + hkey_key, "");Hkey_key = "Footer";Regwsh.regwrite (hkey_root + Hkey_path + hkey_key, "");Hke

Label:XML version= "1.0"?>DOCTYPE hibernate-mapping Public"-//hibernate/hibernate Mapping DTD 3.0//en""Http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">Hibernate-mappingPackage= "Com.ibm.heyang.XXX">ClassName= "Xxxclas"Table= "Xxx_table">IdName= "id"Column= "ID" >GeneratorClass= "Increment"/>Id>PropertyName= "Name"Column= "Name"Not-null= "true"/>PropertyName= "Content"Type= "Text"> ColumnName= "content" = "16777216" /> property> class> Span style= "color: #0000ff;" >hiberna

Setup Method:1.windows ctrl+r, input cmd, and then enter Ipconfig under DOS, get VMNET8 network card IP is 192.168.93.1 (different machine)The network IP is set to 192.168.93.X (128-254) in 2.Ubuntu, and the 128,dns is usually set to 192.168 when automatically assigned. 93.2.**************************************************************************Two. Wireless networkDifferent from the wired network, with the laptop wireless internet, the problem comes out, the host for wireless Internet acces

slave_io_running:yes slave_sql_running:no Replicate_Do_DB:Replicate_Ignore_DB:Replicate_Do_Table: replicate_ignore_table:replicate_wild_do_table:db2.t1%,db2.t2% You can see that the settings have been successfully set.If we write like this, it will not take effect. The last table will prevail:Mysql>STOP SLAVE Sql_thread; Query OK,0 rows affected (0.00SEC) mysql>Change REPLICATION FILTER, replicate_wild_do_table = (‘db2.t1%‘), replicate_wild_d

-width quotation marks ""Set NobackupElseSet backupendifIf you remove the comment, a complete. VIMRC configuration information is as follows:Set nocompatibleSet numberFileType onSet history=1000Set Background=darkSyntax onSet AutoindentSet SmartindentSet tabstop=4Set shiftwidth=4Set ShowmatchSet guioptions-=tSet VB t_vb=Set rulerSet NohlsSet IncsearchIf has ("VMS")Set NobackupElseSet backupendif Original Address http://acm.hrbeu.edu.cn/fo

First, set the Super automatic promptSet Eclipse/myeclipse code hints can be convenient for developers, do not remember the rambling words, only with the first letter, the prompt menu will appear. As easy as Dreamweaver.1. Menu Window->preferences->java->editor->content assist-right-auto-activaction column-enable auto activation Option to tick2.Auto Activation triggers for Java Direct write (new eclipse can write long characters directly) ". ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZ,

generation will overwrite the original core file.1)/proc/sys/kernel/core_uses_pid can control whether a PID is added as an extension in the file name of the core file. The file content is 1, which means adding a PID as the extension, the resulting core file format is core.xxxx, and 0 means that the resulting core file is named Core.You can modify this file by using the following command:echo "1" >/proc/sys/kernel/core_uses_pid2) Proc/sys/kernel/core_pattern can control the core file save locati

| +--------------------+4RowsinchSet (0.00SecMySQL Query from server:Mysql>show databases; +--------------------+ | Database | +--------------------+ | Information_schema | | hi_db |//I ' M here, you see?| MySQL | | Test | +--------------------+4RowsinchSet (0.00sec) MySQL>Use hi_db Database changed MySQL>Select* FROM HI_TB;//view new specific data on the primary server+------+------+ |ID| name | +------+------+ |1| Bobu | +------+------+1RowinchSet (0.00SecArticle citation:

http://www.cnblogs.com/fslnet/p/3143344.html user Management mysql>use mysql; View mysql> select Host,user,password fromuser;Creating mysql> Create User Zx_rootidentified by ' xxxxx '; Identified by will store plaintext password encryption as a hash valueAfter modifying Mysql>rename user Feng to Newuser;//mysql 5, you can use the Update user table before you delete mysql>drop user NewUser; MySQL5 before you delete a user, you must first use revoke to remove the user right, and then delete the us