declare:tldr:f2502

This command creates an array variable in bash and assigns it multiple values.

Here is a breakdown of the command:

1. The command starts with declare -a, which is used to declare an array variable.
2. ${variable} is the name of the array variable you want to create. The curly braces {}are used to specify the variable name.
3. =(${item_a item_b item_c}) is the assignment part. The values inside the parentheses () are the elements of the array, separated by spaces. In this case, the array will have three elements: item_a, item_b, and item_c.

Overall, this command declares an array variable named ${variable} and assigns it values item_a, item_b, and item_c.