The pathchk utility checks whether each of the specified pathname arguments is valid or portable.
A diagnostic message is written for each argument that:
- Is longer than PATH_MAX bytes.
- Contains any component longer than NAME_MAX bytes. (The value of NAME_MAX depends on the underlying file system.)
- Contains a directory component that is not searchable.
It is not considered an error if a pathname argument contains a nonexistent component as long as a component by that name could be created.
The options are as follows: