pathchk - check whether file names are valid or portable
pathchk [OPTION]... NAME...
Diagnose unportable constructs in NAME.
Written by Paul Eggert, David MacKenzie, and Jim Meyering.
Report bugs to <bug-coreutils@gnu.org>.
Copyright (C) 2006 Free Software Foundation, Inc. This is free software. You may redistribute copies of it under the terms of the GNU General Public License <http://www.gnu.org/licenses/gpl.html>. There is NO WARRANTY, to the extent permitted by law.
The full documentation for pathchk is maintained as a Texinfo manual. If the info and pathchk programs are properly installed at your site, the command
info pathchk
should give you access to the complete manual.