Thanks for the information! I wanted to use "stat", but it was already used (display file status); "statistics" was too big. Just as curiosity, I got the idea

Thanks for the information! I wanted to use "stat", but it was already used (display file status); "statistics" was too big. Just as curiosity, I got the idea for this script when I wanted to calculate the sum of some numbers and discovered that the "sum" command was used for another purpose (display file checksums and block counts)!