#!/usr/bin/ruby
#
## https://rosettacode.org/wiki/Check_that_file_exists
#
# Here
say (Dir.cwd + %f'input.txt' -> is_file);
say (Dir.cwd + %d'docs' -> is_dir);
# Root
say (Dir.root + %f'input.txt' -> is_file);
say (Dir.root + %d'docs' -> is_dir);