Get ceiling integer from number in linux (BASH)

Question

How would I do something like:

ceiling(N/500)

N representing a number.

But in a linux Bash script

Answer 1

Call out to a scripting language with a ceil function. Given $NUMBER:

python -c "from math import ceil; print ceil($NUMBER/500.0)"

or

perl -w -e "use POSIX; print ceil($NUMBER/500.0), qq{\n}"