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Variable Description:$$ Shell自己PID（ProcessID） $! Shell背景上次执行Process的PID $? 命令的结束代码（返回值） $- 使用Set命令设定的Flag一览 $* 全部參数列表。如"$*"用「"」括起来的情况、以"$1 $2 … $n"的形式输出全部參数。 [emailprotected] 全部參数列表。如"[emailprotected]"用「"」括起来的情况、以"$1" "$2" … "$n" 的形式输出全部參数。 $# 加入到Shell的參数个数 $0 Shell本身的文件名称 $

this problem. Given a bag with a maximum of coins, determine the most fair, division and between two persons. This means difference between the amount of each person obtains should to be minimised. The value of a coin varies from 1 cent to cents. It ' s not allowed to split a single coin. Input Line A and the number of problems N, followed by N times: A line with a non negative an integer m() indicating the number of coins in the bag Line A and

Installing ganglia# Gmond-t | Tee/usr/local/etc/gmond.confGmond:error while loading shared libraries:libpcre.so.1:cannot open Shared object file:no such file or directoryWorkaroundExecute the following command:whereis libpcre.so.1Shown below:libpcre.so: /lib64/libpcre.so.0 /usr/local/lib/libpcre.so.1 /usr/local/lib/libpcre.soThen establish the connection:ln -s /u

$ file name and path$1,$2 parameter 1, parameter 2$# The number of arguments passed to the script or function $$ current shell process ID $? judge execution succeeded or not 0 for success [email protected] Pass all parameters of a script or function$* Pass all parameters of a script or function${}Note: [Email protected] and the $* 's All P

Http://dadekey.blog.51cto.com/107327/119938 Let's first write a simple script and then explain the meaning of each variable. # Touch variable # Vi variable The script content is as follows: #! /Bin/sh Echo "number: $ #"Echo "scname: $0"Echo "First: $1"Echo "Second: $2"Echo "argume: $ @" Save and exit Grant the script execution per

--- The error occurred in sqlmap/adinfo. xml.--- The error occurred while applying a parameter map.--- Check the insertadinfo-inlineparametermap.--- Check the parameter mapping for the 'clicks' property.--- Cause: Java. SQL. sqlexception: parameter index out of range (1> Number of parameters, which is 0 ).Caused by: Java. SQL. sqlexception: parameter index out of range (

Difference between System. exit (0) and System. exit (1), difference between system. exit1. References Http://hi.baidu.com/accpzhangbo/blog/item/52aeffc683ee6ec238db4965.html2. Parsing Check the source code of java. lang. System. We can find the description of the method System. exit (status). The Code is as follows: /** * Terminates the currently running J

Variable Description:$$ Shell本身的PID（ProcessID） $! Shell最后运行的后台Process的PID $? 最后运行的命令的结束代码（返回值） $- 使用Set命令设定的Flag一览 $* 所有参数列表。如"$*"用「"」括起来的情况、以"$1 $2 … $n"的形式输出所有参数。 [emailprotected] 所有参数列表。如"[emailprotected]"用「"」括起来的情况、以"$1" "$2" … "$n" 的形式输出所有参数。 $# 添加到Shell的参数个数 $0 Shell本身的文件名 $

Transferred from: http://www.cnblogs.com/fhefh/archive/2011/04/15/2017613.htmlThe meaning of shell variable $#,[email protected],$0,$1,$2 in Linux is explained:Variable Description:$$The PID of the shell itself (ProcessID)$!PID of the Shell's last running background process$?End code of the last Run command (return value)$-Flag at a glance using the SET command$*

the turtle departs (located in the center of the form, glans to the right), we firstTurtle. left (a) rotates the turtle to a 45-degree turn (counterclockwise). At this point, the turtle remains in the center of the form, but the glans points to the top right. Next, let the turtle crawl in the direction of the changed glans, turtle. Forward, a line segment that points to the top right of the screen is drawn. PracticeTry to get the little turtle to draw a squareTry to draw a square with 3 overl

Tags: core qml AAA Peer WDS TTL CST Orb tipmongodb hint Api-ms-win-crt-runtimel1-1-0.dll missing solution The official latest version of MONGODB requires:vc++2015 RC x64 Support, otherwise it will be reported Cause of Error: The official latest version of MONGODB requires:vc++2015 RC x64 Support, otherwise it will be reported Download URL: https://www.microsoft.com/zh-cn/download/details.aspx?id=48145 You

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$# is the number of arguments passed to the script. $ is the name of the script itself. $ is the first parameter passed to the shell script, and the second argument that is passed to the shell script is [email protected] is a list of all the parameters passed to the script $*is to display all parameters passed to the script in a single string, unlike positional variables, which can be more than 9 $$ is the current process ID number for the script to run? is to display the exit status of the last

1, HTML+DIV+CSS 0 Basic Quick start to Production Enterprise Station Video course _18 box model [floating calculation]1 DOCTYPE HTML>2 HTMLLang= "en">3 Head>4 MetaCharSet= "UTF-8">5 title>Clear floatingtitle>6 style>7 Ul,li{8 List-style-type:None;9 margin:0px;Ten padding:0px; One } A Li{ - float: Left; - padding:20px 40px; the Background-color:#ff

Read the source code of monitorserver and record some experiences. Start with the main function and start with the following code lines: 1 struct sigaction sa;2 sa.sa_handler = SIG_IGN;3 sigaction( SIGPIPE, sa, 0); I have never used it before. I don't know why I ignored the sigpipe signal, so I searched for it and explained it as follows: When writing a socket program in Linux, if you try to send it to a