pathchk Check the validity and portability of one or more pathnames. Check pathames for validity in the current system: pathchk {{path1 path2 …}} Check pathnames for validity on a wider range of POSIX compliant systems: pathchk -p {{path1 path2 …}} Check pathnames for validity on all POSIX compliant systems: pathchk --portability {{path1 path2 …}} Only check for empty pathnames or leading dashes (-): pathchk -P {{path1 path2 …}}