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used for page keywords and descriptions, is written to the search engine to see, the key word can have a number of ', ' separated, with the corresponding property value for content,content content is easy to search engine robots to find information and classification information.name= "Keywords" content= "NetEase, email, games, news, sports, entertainment, women, Asian Games, forum, SMS "/>These keywords, is to tell the search engine, this page is w

/Courseware).(1) Exercise 11th, using Vi/vim/gedit or another editor, write the shell script ex1.sh, which reads as follows:The function of this script is to back up normal files that have been modified within the current directory for the last 1 days (that is, 24 hours). Use the backup system's current datetime as the file name and compress the archive. The error message is written to Error_info during the

/.bash_profile/root/.bashrcWriting and executing scripts:#!/bin/bashFor i in {1..10}DoUseradd hydra$i 2>>uerror.log >/dev/nullecho "123" |passwd--stdin user$i 2>>perror.log >/dev/nullDoneTo add Execute permissions:[Email protected] ~]# chmod +x x.sh[Email protected] ~]#./x.shHAIL HYDRA!!!!!Execute when not authorized: (Because interpreter rights have permission)[

original works, allow reprint, please be sure to mark the article in the form of hyperlinks Original source , author information and this statement. Otherwise, the legal liability will be investigated. For more information, see the old boy's teacher's book: "Learn Linux operations with older boys: Web cluster Combat" or operations courses.First look at what services are currently open:The old boy teacher's experience tells us that the default is only to open the following 5 essential services

§linux 0 Basic 1-3 RHEL7 command operation and startup level settings"Content of this section"*linux Terminal Introduction*shell prompt*bash Shell Basic Syntax* Use of BASIC commands: LS, pwd, CD* View System BIOS settings*linux How to get help*linux shutdown command: Shutdown, init 0, etc.*Linux 7 boot level* Set up the server automatically after the call"Introduction to Linux Terminal"TTY Console TerminalPTS represents a virtual terminalTty1-tty6> J

Suppose there is a text box and you need to check whether the input content is an email. How many use cases should you test? 1. English email address Abc@gmail.com 2. Email addresses with underlines and periods A. B .c@gmail.com A-b-c@gmail.com A-b.c@gmail.com A.b-c@gmail.com A. B @gmail.com A-b@gmail

a way of just adding information to the a node, which is essentially just one, a node, just a separate description?DTS device node definition name definition format:[Label:] node-name[@unit-address]For example, Cif:[email protected], the corresponding device node name or cif,[] indicates the selectable existence. The sum of the FFS functions takes the lowest valid position and is set to 1, and the remainin

Original URL: http://dadekey.blog.51cto.com/107327/119938let's start by writing a simple script that will explain the meaning of each variable after execution .# Touch Variable# VI VariableThe script reads as follows:#!/bin/shecho "number:$#"echo "Scname:$0"echo "First: $ $"echo "Second:$2"echo "Argume:[email protected]"echo "Show Parm list:$*"echo "Show Process id:$$"echo "Show Precomm stat: $?"Save Exit assigning script Execution Permissions# chmod

Iptables configuration file:/etc/sysconfig/iptablesConfirm that the route forwarding function is turned onMethod 1:/sbin/sysctl-w Net.ipv4.ip_forward=1Method 2:echo 1 >/proc/sys/net/ipv4/ip_forwardMethod 3: Modify/etc/sysctl.conf, set Net.ipv4.ip_forward = 1Set up route forwarding[[email protected] ~]# vim/etc/sysctl.conf modified:Net.ipv4.ip_forward =

:") Span style= "FONT-FAMILY:CALIBRI; Font-size:14pt ">if (Num==num[::-1]): nbsp;print "is a palindrome number! " else: print" is not a palindrome number " Ten, beg greatest common divisor and least common multiplemin_num = min (num1, num2)for I in range (1, Min_num + 1):if (num1% i = = 0 and num2% i = = 0):Gys = iGBS = NUM1 * Num2/gysprint "%d an

Tags: Oracle server notebook CopyrightPrepare to start learning Oracle from scratch.I said 2016 years to write a weekly technical blog. So from now on.Today we have a problem with a weak explosion:A notebook was replaced a few days ago, and the Oracle 11g R2 is installed on the new notebook. Use DBCA installed database without error, shut down the computer to sleep, today to start learning Oracle, the implementation of the OCP advanced, the results have just started to make a low-level error.I l

. .650) this.width=650; "Src=" https://s2.51cto.com/wyfs02/M01/97/4F/wKioL1ktIn7DL_keAABwnWPxE8I848.jpg-wh_500x0-wm_ 3-wmp_4-s_2827609233.jpg "title=" 4 file management. jpg "alt=" wkiol1ktin7dl_keaabwnwpxe8i848.jpg-wh_50 "/>4k file system with block size Level Number of blocks The size of the file area that can be indexed Direct 12 48k Level 1 512 2m Level 2

fun0, Fun1, fun2 is not a good DSL either.Author :: Old Wow's paw attilax ayron,email:[email protected]Reprint please indicate source: Http://blog.csdn.net/attilax1.2. Quaere:Javaon theLINQ(not new.sourcecode)The following example obtains a list of product names from a product list:List products = Arrays.aslist (Product.getallproducts ());Iterable Productnames =From ("P").Select ("P.getproductname ()");1.3

relationship>>> fromSQLAlchemyImportForeignKey>>> fromSqlalchemy.ormImportrelationship, Backref>>>classAddress (Base): ...__tablename__='addresses'... id= Column (Integer, primary_key=True) ... email_address= Column (String, nullable=False) ... user_id= Column (Integer, ForeignKey ('users.id') ) ... user= Relationship ("User", Backref=backref ('addresses', order_by=ID)) ...... def __repr__(self): ...return ""% self.email_addressForeignKey () Relationship ()Basic Relational Patterns (relatio

Tags: listed company profile Thanksgiving Heart IP Address serverMongoDB Master-Slave construction--- xudong He (maintenance engineer of a listed company)With the heart of Thanksgiving, return everyone ( year 7 months )DirectoryMongoDB Master-Slave construction ... 1Environment Introduction ... 1Note: ... 1master server configuration file ... 1from the server configuration file ... 2Connection Test ... 2Primary server for write testing ... 2View status from server ... 2Environment Introd

1 , create user Gentoo , additional group is bin and root , the default Shell is /bin/csh , Annotated message "Gentoo Distribution"[Email protected] ~]# useradd-g bin,root-c "Gentoo distribution"-s/etc/csh Gentoouseradd:user ' Gentoo ' already exist S[[email protected] ~]# groups Gentoo;grep Gentoo/etc/passwdgentoo:gentoo root Bingentoo:x:501:501:gentoo Distr

to configure partition/finish/select Standard partition,Click +/mount point Select/boot, size 200M, add mount point/Click +/mount point selection/, size 20000M, add mount point/Click +/mount point to select Swap, size 8192MFinish/Start InstallationE. Click the root password, set the password to CentOS, complete/restartF. Post-installation initialization (if text interface): 1--2--and C--CSecond, the basic operation of Linux system1. Account Managemen

Linux core Cheats Linux systems are strictly case-sensitive Linux everything File Space required between Linux commands 1. The computer is made up of hardware and softwareHardware: Visible, Touch (monitor/keyboard/mouse/Chassis/motherboard/cpu/memory/HDD ... ）Software:System software Windows/linux/unixApplication software qq/360/office/...2. Computer classificationAlmost 99% of PC installed is Windows, currently preferred Windows

1. Network Tools: ifconfig, ping, netstate, Redhat command and graphical settings of ip, finger, nslookup, ifconfignetstateZookeeper 1 ip ad view Nic ID 2. View Nic information in ifconfig 3. Disable the NIC 4. Start the NIC 5. configure a temporary ip address for etho Sudo ifconfig ethoIP address 6. ping Command Ping [Option] Host Name/IP Address Check whether hosts on the network are working. I

/application/httpd-2.2.34/conf/httpd.confOptions Indexes followsymlinks #去掉Indexes以后没有首页的时候就不会展示目录结构AllowOverride NoneOrder Allow,denyAllow from allAdd a virtual host that can be based on domain name, port, IPvim/application/httpd-2.2.34/conf/httpd.conf Remove AnnotationsInclude conf/extra/httpd-vhosts.confVi/application/httpd-2.2.34/conf/extra/httpd-vhosts.confDirectory authorizationDirectory "/application/httpd-2.2.34/docs" >Options Indexes FollowSymLinksAllowOverride NoneOrder Allow,denyAllow