case expression in pattern1 ) statements ;; pattern2 ) statements ;; ... esac Examples #!/bin/bash # This script does a very simple test for checking disk space. space=`df -h | awk '{print $5}' | grep % | grep -v Use | sort -n | tail -1 | cut -d "%" -f1 -` cas...
/bin/bashexportUSER="pi"echo"user =$USER"# echo "\$1 = $1"# export N=1exportN=3case"$N"in1)echo'case 1';; 2)echo'case 2';; *)echo'default case 数字 *';;esac https://www.runoob.com/try/runcode.php?filename=helloworld&type=bash shell scriptshebangenv hash bang env #!\...
在switch查询中,case不总是被执行的原因可能有以下几种情况: 1. 没有匹配的case值:如果switch表达式的值与任何一个case的值都不匹配,那么switch语句将不会执行任何case...
How can I filter STDIN by globbing in bash? My bash script get full paths via pipe (stdin) and get exclude patterns by command line arguments. Currently this handles regexp patterns, but I want to rewrite to handles glob patterns only. How can ... ...
Python or bash script: if pattern in lines between two identical markers, remove lines and first marker As a beginner, I'm trying to solve the following problem (bash or python script): the file (~50G!): I would like to find a way to remove the lines between two markers + the ...
shell 命令解释程序 csh(1) 、 ksh(1) 、 ksh88(1) 和 sh(1) 具有特殊的内置命令。命令 case 、 for 、 foreach 、 function 、 if 、 repeat 、 select 、 switch 、 until 和 while 是可被 shell 识别的语法中的命令。这些命令在各自...
ECMAScript迭代语句迭代语句也叫做循环语句,迭代语句声明一组要反复执行的命令(循环),直到满足预先设定条件为止。迭代语句在程序日程中都说循环,一般用于迭代数组的值,或者执行重复的算术任务。这次说一下ECMAScript的四种迭代语句(循环语句):1、do-while语句2、while语句3、for语句4、for-in语句一、do-while语句,do-...
switch 两个条件JavaScript switchcase多个条件 在高性能jiavascript一书中提到switch性能比if-else好,但是如何switch在一个case里面写多个条件呢:switchcase多值匹配一般有两种情况1.列举(将所有值列举出来)var n= 3; switch (n){case1:case2:case3: console.log("0~3"); break ...
下面是脚本: <script src="angular.min.js"></script> <script src="jquery-1.6.4.js"></script> <script type="text/javascript"> var app = angular.module('myApp', []); app.controller("myController", function ($scope) { $scope
d3fc0n6 / Dead-Mans-Switch Star 0 Code Issues Pull requests Bash based dead man switch bash-script deadmanswitch dead-mans-switch Updated Jul 24, 2022 Shell Load more… Improve this page Add a description, image, and links to the deadmanswitch topic page so that developers can ...