PATHCHK(1) PATHCHK(1) pathchk - check whether file names are valid or portable pathchk []... ... Diagnose invalid or non-portable file names. -p -P ,,-" --portability ( -p, -P) --help --version , . : bug-coreutils@gnu.org coreutils : : Copyright (C) 2026 Free Software Foundation, Inc. 3+: 3 . : . , . ,,info '(coreutils) pathchk invocation'" ; 3 . . , - TODO <>. coreutils 9.11 2026 PATHCHK(1)