Check the validity and portability of pathnames. More information: https://www.gnu.org/software/coreutils/manual/html_node/pathchk-invocation.html.
pathchk {{path1 path2 ...}}
pathchk -p {{path1 path2 ...}}
pathchk {{[-p -P|--portability]}} {{path1 path2 ...}}
pathchk -P {{path1 path2 ...}}