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[[email protected] ~]# grep-n ' root '/etc/passwd1:root:x:0:0:root:/root:/bin/bash11:operator:x:11:0:operator:/root:/sbin/nologinCreate an individual name for grep and copy the/etc/passwd[[email protected] ~]# vim. BASHRCAlias cg= ' grep--color '[Email protected] ~]# cp/etc/passwd 1.txtCP: Do you want to overwrite "

Part I: Theoretical basis of twistedauthor :[email protected]http://krondo.com/?p=1209 Translator : Yang Xiaowei ( with free translation )Preface :someone has recentlyTwisteda list of messages such as "provide a copy of the task emergencyTwistedThe requirements of the introduction ". It's worth revealing that this sequence is not what they wanted..especially the introductionTwistedframework and based onPython asynchronous programming, it may not be

PackageCom.xm.controller;2 3 Importjava.util.List;4 5 ImportJavax.validation.Valid;6 7 ImportOrg.springframework.validation.BindingResult;8 ImportOrg.springframework.validation.FieldError;9 Importorg.springframework.web.bind.annotation.PostMapping;Ten Importorg.springframework.web.bind.annotation.RequestMapping; One ImportOrg.springframework.web.bind.annotation.RestController; A - ImportCom.xm.pojo.User; - the @RestController - Public classUsercontroller { - -@RequestMapping ("/hello")

customizable, commercial support.6.shell: It is a software, is a command interpreter;It provides an interface for interaction between the user and the kernel outside of the Linux kernel;The command entered by the user is interpreted by the shell to the kernel, and the shell receives the output of the system response and displays it to the screen.Bash is a shell, and the system default shell that is currently used is bash.650) this.width=650; "Src=" https://s3.51cto.com/wyfs02/M02/9C/28/wKioL1ls

have higher bandwidth limitations compared to smaller virtual machines. When using premium disks, make sure that the virtual machine is large enough to handle the total disk bandwidth.650) this.width=650; "Src=" http://images2015.cnblogs.com/blog/845013/201611/845013-20161109094219374-477858781. PNG "style=" border:0px; "/>PrecautionsIn this article, for example CentOS 6.7, using DS14 as a test virtual machine to use premium storage on CentOS as a database server, there are several items to not

Access to | data-Actual. Net Data Access Layer L Special Note The actual combat is divided into 23 paragraphs, not the author intends to do so, is subject to the CSDN published article 64K Limited. Although there are a few segments that do not reach 64K at all, it is estimated that HTML source exceeds this fan Wai, so also have to separate subparagraph (mostly source code), please understand. If a friend needs a complete document, please email

(please remember to run cmd as Administrator)Start MySQL service: net start MySQL(or right-click on the service->mysql, right-click Computer)5. Modify the MySQL user accountIn this case, you should be able to connect to MySQL via command line at CMD.After MySQL is installed by default, the root user and an anonymous user are generated, it is recommended to change the root account password and delete the anonymous user, the following actions:　 Use test; Select Host,userfromuser;(

MySQL service and start Execute mysqld–install MySQL in the bin folder of MySQL (please remember to execute cmd as Administrator) Start MySQL service: net start MySQL(or right-click on the service->mysql, right-click Computer) 5. Change the MySQL user account At this point, you should be able to connect to MySQL via command line under CMD. After MySQL is installed by default, the root user and an anonymous user are generated, it is recommended to change the root account password and delete the

Internet:Server-side: Be sure to start the listenerNo Configuration Boot listener: rm-f $ORACLE _home/network/admin/listener.oraView listening status: Lsnrctl statusStart monitoring: Lsnrctl startClient: Using service naming (network connection string)Cat/etc/hosts------------------------------------------------------------# don't remove the following line, or various programs# that require network functionality would fail.127.0.0.1 localhost.localdomain localhost::

1, first download the image to local. https://hub.docker.com/r/gettyimages/spark/~$ Docker Pull Gettyimages/spark2, download from https://github.com/gettyimages/docker-spark/blob/master/docker-compose.yml to support the spark cluster DOCKER-COMPOSE.YML fileStart it$ docker-compose Up$ docker-compose UpCreating spark_master_1Creating spark_worker_1Attaching to Spark_master_1, spark_worker_1master_1 | 16/10/29 13:25:05 INFO Master. master:started daemo

results and execution status information, and if this is not an internal command, bash invokes the built-in path variable that holds the executable binary, reading the contents of the variable. To find out if there is a file with the same name as the command executed this time, if any, execute it, if not, it will report an error message such as:-bash:commamd:command not found. The "command" may be replaced with the command being executed. As shown in the following example: [

Path to the LS Etc/init.d/shell scriptls/usr/local/apache2/Ls/usr/local/apache2/bin/apachectl1. Shell FeaturesOrder history!! !$!n! characterTab key to complete file path or commandAlias a= "B" Unalias AWildcard * Matches 0 or more characters? Match one characterInput/output redirection, >>, Pipe symbol |Job Control CTRL + Z, jobs view background Stop command, FG Recovery background Stop command, BG n n indicates to view the first few running commands in the backgroundSleep put in the backgroun

Delete the full Python script for more than 1 years of data:VI aa.py#!/usr/bin/pythonImport OSImport datetimeImport ShutilDir= "/AA"now = Datetime.datetime.now ()Delta = Datetime.timedelta (days=365)Os.remove ("/log/110hudrm/gmss.txt")Os.mknod ("/log/110hudrm/gmss.txt")Os.chdir (dir)str1 = "_w"For Root,dirs,files in Os.walk (dir):For F in dirs:if f = = "Ima":Mtime = Datetime.datetime.fromtimestamp (Os.path.getmtime (Os.path.join (root,f)))If Mtime b =

-------------------Scenario Description:I am here 1 servers (rsync+inotify) to proactively push files to n machines (rsync daemon), and I have the same n machine configuration file configuration (call password Authentication file).-------------------Server-side configuration:mkdir/data/sync-servercd/data/sync-serveryum-yinstallinotify-toolsrsync# Then write the Inotify-tools script vimsync.sh#!/bin/bash#source/etc/profile>/dev/nullbasedir=$ (CD ' dir