PATHCHK(1) User Commands PATHCHK(1)

pathchk - check whether file names are valid or portable

pathchk [OPTION]... NAME...

Diagnose invalid or non-portable file names.

-p
check for most POSIX systems
-P
check for empty names and leading "-"
--portability
check for all POSIX systems (equivalent to -p -P)
--help
display this help and exit
--version
output version information and exit

Written by Paul Eggert, David MacKenzie, and Jim Meyering.

Report bugs to: bug-coreutils@gnu.org
GNU coreutils home page: https://www.gnu.org/software/coreutils/
General help using GNU software: https://www.gnu.org/gethelp/
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Copyright © 2026 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later https://gnu.org/licenses/gpl.html.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.

Full documentation https://www.gnu.org/software/coreutils/pathchk
or available locally via: info '(coreutils) pathchk invocation'

February 2026 GNU coreutils 9.10