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.\" $FreeBSD: release/9.1.0/usr.bin/pathchk/pathchk.1 207485 2010-05-01 22:10:45Z jilles $
.\"
.Dd May 1, 2010
.Dt PATHCHK 1
.Os
.Sh NAME
.Nm pathchk
.Nd check pathnames
.Sh SYNOPSIS
.Nm
.Op Fl pP
.Ar pathname ...
.Sh DESCRIPTION
The
.Nm
utility checks whether each of the specified
.Ar pathname
arguments is valid or portable.
.Pp
A diagnostic message is written for each argument that:
.Bl -bullet
.It
Is longer than
.Dv PATH_MAX
bytes.
.It
Contains any component longer than
.Dv NAME_MAX
bytes.
(The value of
.Dv NAME_MAX
depends on the underlying file system.)
.It
Contains a directory component that is not searchable.
.El
.Pp
It is not considered an error if a
.Ar pathname
argument contains a nonexistent component as long as a component by that
name could be created.
.Pp
The options are as follows:
.Bl -tag -width indent
.It Fl p
Perform portability checks on the specified
.Ar pathname
arguments.
Diagnostic messages will be written for each argument that:
.Bl -bullet
.It
Is longer than
.Dv _POSIX_PATH_MAX
.Pq 255
bytes.
.It
Contains a component longer than
.Dv _POSIX_NAME_MAX
.Pq 14
bytes.
.It
Contains any character not in the portable filename character set (that is,
alphanumeric characters,
.Ql \&. ,
.Ql \&-
and
.Ql _ ) .
No component may start with the hyphen
.Pq Ql \&-
character.
.El
.It Fl P
In addition to the default or
.Fl p
checks, write a diagnostic for each argument that:
.Bl -bullet
.It
Is empty.
.It
Contains a component that starts with a hyphen.
.El
.El
.Sh EXIT STATUS
.Ex -std
.Sh EXAMPLES
Check whether the names of files in the current directory are portable to
other
.Tn POSIX
systems:
.Pp
.Dl "find . -exec pathchk -p -- {} +"
.Sh SEE ALSO
.Xr getconf 1 ,
.Xr pathconf 2 ,
.Xr stat 2
.Sh STANDARDS
The
.Nm
utility conforms to
.St -p1003.1-2001 .
.Sh HISTORY
A
.Nm
utility appeared in
.Fx 5.0 .