echo 5

In the previous article, we wrote a Simple plug-in to let everyone know about the simple production of the plug-in. This article is a further step. When we activate the plug-in, the menu will be displayed in the background, click the menu to display

Network Time Protocol (NTP, Network Time Protocol) is used to synchronize all of its client clock services. The NTP server synchronizes the clock of the local system with a public NTP server and then serves as a time host so that all clients on the

PHP output buffering2017-03-02 22:41:04the first thing to know is that　　PHP,WebServer (Apacheserver) and the browser have their own buffers (Buffer), these three output data will first save the data to its own buffer, to its own bufferafter being

@echo offColor 1fTitle is monitoring www.0579ld.com.cnECHO is monitoring www.0579ld.com.cn (23.247.53.3).: AAAD:\curl\curl-I Www.0579ld.com.cn>nulSet str=%errorlevel%If not "%str%" = = "0" (echo in%date%%time:~0,5% no normal access, reboot ...:: CD

Rights management system, it is mainly in order to give different users to set different permissions, so that users with different permissions to log on after the use of the same function.First look at the databaseThere are a total of 5 tables,

1. Date_default_timezone_setdate_default_timezone_set- Setting the default time zone for all datetime functions in a scriptWhen you use only the Mktime () function in PHP, you sometimes get an error, and the workaround is to add a line after

Last time I wrote the shell, I found that VI and VIM are different: Vim is the upgrade version of VI, it is not only compatible with all VI directives, but also some new features in it. Vim is much more useful than VI.This time the last content, the

Environment variablesSome commandsVarious environment variables often appear in shell scripts, so to write a script, you must first understand the environment variables. Common commands for handling environment variables are listed below

1, without root, add ordinary users, through sudo authorization management.2, change the default remote connection SSH service port and disable the root user remote connection.3, scheduled automatic Update server time4, configure the domestic Yum

Command substitutionCommand substitution means that the shell can execute commands first, save the output temporarily, and output it where appropriate.Syntax for command substitution:' Command 'Note that it is an anti-quote , not a single quote,

Guide Linux is a highly controllable, safe and efficient operating system. This article only discusses the Linux file read and write mechanism, does not involve different reading methods such as read,fread,cin, such as the comparison, these

Guide Linux is a highly controllable, safe and efficient operating system. This article only discusses the Linux file read and write mechanism, does not involve different reading methods such as read,fread,cin, such as the comparison, these

CPU Configuration information:[Email protected]:~/test/python$ cat/proc/Cpuinfo Processor:0#系统中逻辑处理核的编号 Vendor_id:genuineintel #CPU制造商 CPU Family:6#CPU产品系列代号 Model: -#CPU属于其系列中的哪一代的代号 Model Name:intel (R) Xeon (r) CPU E5-2630V4 @2. 20GHz

1, modifyIpaddress, Gateway, host name,Dnswait[[email protected] ~]# cat/etc/sysconfig/network-scripts/ ifcfg-eth0device=eth0            #网卡名称HWADDR =00:0c:29:06 :c2:bc      #MAC地址TYPE =ethernet        # Network card type uuid=00c8bfff-f6fa-4d4e-9062

Linux compile ffmpeg and convert MP3 to AMRAMR format is a popular audio file format on smartphones, such as MP3 format, but the file is smaller than MP3, so it is widely used in mobile internet projects. At the end of last year to assist Lenovo

##### #shell Script ##########Bash Script BasicsBASH = GNU Bourne-again Shell,bash is a project developed and promoted by the GNU organization.Bash scripts are similar to batching, simply by putting a lot of instructions together and providing loops,

first, the implementation1, parallel execution of commands, multiple commands separated by semicolons[Email protected] network-scripts]#Date;W.H.O.Tue May3 -: -: -Cst .Root Tty1 .- to-Geneva on: +Root pts/0 .- to-Geneva -: A(192.168.78.1)2

Linux System modification System time1. Set the time[[email protected] ~]# date-s "2015/11/05 15:56:00"# Date command-S modified time "2015/10/4 21:15" specified[Email protected] ~]# Hwclock# Refresh the time to the BIOSFri 12:04:36 AM CST-0.651161

The main ideas refer to the content of this blog, the address affixed:Http://www.cnblogs.com/zhoujie/p/python18.htmlPut my own code down here.The demo code to read the Excel data is as follows:1 defRead_excel_demo ():2 #Open File3Workbook = Xlrd.

For Linux SA, server performance needs our special attention, including CPU, IO, memory and so on, the optimization of the system becomes crucial, here is reproduced a very good article about IO optimization for your reference and learning: first,