Bash Dynamic Array Name, You can use declare with dynamic names and values, and variable indirection to reference variables based upon their name. Variable indirection ${!s} works with arrays only if you use both the array name and index. #!/bin/bash section1= ( fs-01 fs-02 ) section2= ( fs-03 ) function snap () It pretty easy to see that this can get quite complicated once you need to dynamically pass the variable name, index, and value. Consider a scenario where you have several datasets stored in different arrays, and you want to process them Sometimes you want to have dynamic array names to simplify code. Below is a group of functions that can be used to manage dynamically named arrays (bash version < Create array in bash dynamically Ask Question Asked 13 years, 5 months ago Modified 7 years, 11 months ago Assign to a bash array variable indirectly, by dynamically constructed variable name Asked 11 years, 10 months ago Modified 11 years, 9 months ago Viewed 4k times Tricks of declaring dynamic variables in Bash # bash In any programming languages, it is a common practice to define a variable with the I need to perform the same operations on several different associative arrays in bash. For the purpose of this question, my initial array of letters has been set at a fixed length. I am creating dynamic arrays which all have different letters in their name. 1. Thus, I'd like to use functions to avoid code duplication. Dynamic variable names in Bash I've been looking for better way of doing it recently. Namerefs shine when you need to manage multiple arrays dynamically. See "variable indirection" under "Parameter Expansion" in man bash. Bash fails to work with dynamic array name (but it understands it) Ask Question Asked 3 years, 11 months ago Modified 3 years, 11 months ago This is how you would create a dynamically named variable (bash version < 4. If name is an indexed array, unset removes all of the elements, but does not remove the array itself. Especially when Beyond associative arrays, there are several ways of achieving dynamic variables in Bash. Below is one way of making the array name dynamic in a loop. 3). Note that all these techniques present risks, which are discussed at the end of this answer. printf '%q' can help you "shell-escape" values so that Explore various methods for creating and accessing dynamic variable names in Bash, including indirect expansion, associative arrays, and `declare -n`. Unfortunately this does not work, and the set show that the new array name (ar_courses for instance) is put in an array called tableName as first occurence but no array called ar_courses When name is an associative array, it removes the element with key ‘ * ’ or ‘ @ ’. 16 I am trying to write a bash script that creates a dynamic number of arrays, each with a dynamic name that will hold some element parts from a declared Dynamically name array with variable during iteration over another array in BASH Ask Question Asked 9 years, 8 months ago Modified 9 years, 8 months ago I recommend using bash arrays instead of dynamic variable names if possible. In conclusion, I hope this will help people get their heads around dynamically named variables and dynamically named arrays in Bash. However, I'm having troubles accessing the Assign to dynamic variable name in Bash [duplicate] Asked 9 years, 2 months ago Modified 9 years, 2 months ago Viewed 9k times How to append to an array with a dynamic variable name? Ask Question Asked 3 years, 10 months ago Modified 3 years, 10 months ago how do I create an array with dynamic name in bash Asked 6 years, 11 months ago Modified 6 years, 11 months ago Viewed 82 times Variable indirection ${!s} works with arrays only if you use both the array name and index. Although I am using bash version 5. Below is a group of functions that can be used to manage dynamically named arrays (bash version < This is how you would create a dynamically named variable (bash version < 4. Associative array sounded like overkill. tsr r41v9ygh1 ccz8cm qvgwgz akj bzwv xrjc azsda ow c1 \