modify [-r] [-l|-u] <dir/file names...> modify [-r] <dir/file names...> modify [-h]
which will modify file names. The script is dedicated to lowerizing (-l) file names, uppercasing (-u) file names or internally calling sed command with the given sed pattern which will operate on file names. Changes may be done either with recursion (-r) or without it. -r doesn't take arguments so it's a standalone option.
Write a second script, named modify_examples, which will lead the tester of the modify script through the typical, uncommon and even incorrect scenarios of usage of the modify script.
(-u) - uppercasing all file names and directories (-l) - lowerizing all file names and directories (-r) - recursively change file and directory names with given options -u or -l (-h) - help usage: modify [-r] [-l|-u] <dir/file names...> || modify [-r] <dir/file names...> || modify [-h]