Command:   pathchk - check pathname
Syntax:    pathchk [-p] path ...
Flags:     -p  Check against POSIX rules
Examples:  pathchk /usr/src/file.c  # Check the accessibility of file.c
           pathchk -p file          # Check posix compliance of file

     Pathchk verifies path names and display  error  if  paths  are  too
long,  contain  names  that  are  too  long,  go  thru  a non-searchable
directory or contain an invalid character in names. If the  -p  flag  is
specified,  the  POSIX  rules  apply instead of the rules of the current
file system.