你可以像这样使用它: ## declare an array variable declare -a arr=("element1" "element2" "element3") ## now loop through the above array for i in "${arr[@]}" do echo "$i" # or do whatever with individual element of the
In this example, we have two arrays:fruitsandcolors. We use a ‘for’ loop to iterate through the indices of thefruitsarray (obtained using the!symbol before the array variable). For each iteration, we print out a sentence that combines elements from both arrays at the same index. Loops ...
你可以这样使用它:## declare an array variabledeclare -a arr=("element1" "element2" "element3")## now loop through the above arrayfor i in "${arr[@]}"do echo "$i" &n...
Bash while Loop Iterate through an Array An array stores multiple elements of the same data type. Loop structures serve as a fundamental tool for iterating through arrays and performing operations on each of their elements. For example, let’s create a Bash script that has an array of 5 ele...
Shell/Bash 变量/variable 循环/loop 如何在bash脚本里面进行循环 #!/bin/bashn=9999for(( i =1; i<=100;i++))do/root/testProgram$nsleep5 n=$((n+1))done REFER:How to increment a variable in bash?
Bash 编程高级教程(全) 原文:Pro Bash Programming 协议:CC BY-NC-SA 4.0 一、你好世界:你的第一个 Shell 程序 一个 shell 脚本是一个包含一个或多个您可以在命令行上输入的命令的文件。本章描述了如何创建这样的文件并使其可执行。它还涵盖了围绕 she
varname is any Bash variable name. In this form, the for statement executes the command enclosed in a body, once for each item in the list. The current item from the list will be stored in a variable “varname” each time through the loop. This varname can be processed in the body...
The infinite loop repeats the execution of a section of code forever or until an exception arises. This loop often uses a while true loop construct and is sometimes called an endless loop or a forever loop. The collection-controlled loop iterates over all the elements of an array, or all ...
Bash For Loop Incremented Values From the above example, you can see that theloopincremented the values inside the curly braces by 2 values. Bash For Loops with Arrays You can also easily iterate through values defined in an array using afor Loop. In the following example, thefor loopiterate...
(expr)Exit with a statusfor/dofor/dofor/doforeachLoop through variablesset-f,set-o nullglob|...