Using an index in an array Let's start with the first one. Use for loop with array for every element In this method, you can use a variable that will be used to print every element of the array. You can use any name for the variable to store the value of the element for the ong...
在Bash For Loop中使用“Continue”语句 “ continue ”语句是控制脚本运行方式的内置命令。除了bash脚本之外,它还用于Python和Java等编程语言。continue语句在满足特定条件时停止循环内的当前迭代,然后恢复迭代。可以看看如下所示的for循环。 #!/bin/bash for n in {1..10} do if [[ $n -eq '6' ]] then ...
Let us look at some of the examples of using for loop in Bash now that the syntax is clear. Example 1 - for Loop to Read Input Variable Using the for loop, it is straightforward to read the predefined strings or array. Here is an example of how you can use the for loop. In the...
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The basic syntax of a for loop in Bash is: forvariableinlistdocommandsdone Examples Example 1: Iterating Over a List of Words #!/bin/zshforwordinapple banana cherrydoecho"The word is:$word"done Example 2: Iterating Over a Range of Numbers ...
“#! /bin/bash” First, we need to define an array and assign five values to it. Let’s assign the names John, Jane, Jim, Jack, and Janis. Now comes the fun part; we need to set up the for loop, which using the iterator “i” will iterate through the array’s contents and ...
Infinite for loop can be created with empty expressions, such as: #!/bin/bashfor(( ; ; ))doecho"infinite loops [ hit CTRL+C to stop]"done Conditional exit with break You can do early exit with break statement inside the for loop. You can exit from within a FOR, WHILE or UNTIL lo...
Loop over strings Loop over a range Loop over array elements The C-style Bash for loop Nesting Loops break and continue Statements break Statement continue Statement Bash for Loop Examples Renaming files with spaces in the filename Changing file extension Conclusion Share: Loops...
$ bash forloop3.sh The following output will appear after running the script. Example-4: Using command output as the list Any bash command output can be used in the ‘for’ loop by using backtick(`). Create a file named ‘forloop4.sh’ with the following script. Here, `ls *.txt`...
If you add another command, the loop will operate on the same item before moving to the next one. For example, we’ll insert anotherechoto add a suffix to the item. Here’s the output: Bash for Loop With a Shell Variable In addition to an array, you can use a shell variable to ...