typeset

Declare variables and give them attributes. More information: https://www.gnu.org/software/bash/manual/bash.html#Bash-Builtins.

typeset variable="value"

typeset -i variable="value"

typeset variable=(item_a item_b item_c)

typeset -A variable=([key_a]=item_a [key_b]=item_b [key_c]=item_c)

typeset -r variable="value"

typeset -g variable="value"