We’re going to execute a command and save its multi-line output into a Bash array. I guess I didn't test that comment before posting. Bash does not support multi-dimensional arrays, but there is a way to imitate this functionality, if you absolutely have to. We can combine read with IFS (Internal Field Separator) to … At first glance, the problem looks simple. allThreads = (1 2 4 8 16 32 64 128). By asking for indexes not in the array you either create an array with indexes missing, ie 0,1,3,6,7,9 This would then mean you have "holes" at positions - 2,4,5,8 and nothing in any index after 9 However, you create your array using the following: I even checked older bash and it's still wrong there; like you say set -x shows how it expands. There is no limit on the maximum number of elements that can be stored in an array. The Bash provides one-dimensional array variables. Arrays in Bash. It only works with a 1-element array of an empty string, not 2 elements. In BASH script it is possible to create type types of array, an indexed array or associative array. Bash IF statement is used for conditional branching in the sequential flow of execution of statements.. We shall learn about the syntax of if statement and get a thorough understanding of it with the help of examples. The first thing we'll do is define an array containing the values of the --threads parameter that we want to test:. Method 3: Bash split string into array using delimiter. Creating Bash Arrays # Arrays in Bash can be initialized in different ways. Each line should be an element of the array. bash documentation: Accessing Array Elements. Where 0 is the index of the array and 1 is the value assigned to the first element of the array. In this example, all the elements are numbers, but it need not be the case—arrays in Bash can contain both numbers and strings, e.g., myArray=(1 2 "three" 4 "five") is a valid expression. Bash does not support multidimensional arrays, and you can’t have array elements that are also arrays. In Bash, there are two types of arrays. Elements in arrays are frequently referred to by their index number, which is the position in which they reside in the array. Execute the script. Arrays are indexed using integers and are zero-based. echo "${array[@]}" Print all elements as a single quoted string Now the myarray contains 3 elements so bash split string into array was successful # /tmp/split-string.sh My array: string1 string2 string3 Number of elements in the array: 3 . There are the associative arrays and integer-indexed arrays. @Michael: Crap, you're right. Print all elements, each quoted separately. Arrays are not specifically defined as a type in Batch Script but can be implemented. As a quick example, here’s a data table representing a two-dimensional array. The following things need to be noted when arrays are implemented in Batch Script. 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