Shell/Bash - How to save array to file and another file array load?

If the values of your variables are not in multiple lines, a basic and easy way for it is to use set:

# Save
set | grep ^ARR= > somefile.arrays
# Load
. somefile.arrays

from : https://stackoverflow.com/questions/18860438/shell-bash-how-to-save-array-to-file-and-another-file-array-load