ff-info.1

.Dd 2024-04-04
.Dt FF-INFO 1
.Os farbfeld-utils
.Sh NAME
.Nm ff-info
.Nd program that prints the height and/or width of a farbfeld image
.Sh SYNOPSIS
.Nm
<?option?>
.Sh DESCRIPTION
.Nm
prints the height and/or width of a
.Xr farbfeld 5
image to stdout.
.Pp
The output is decimal ASCII followed by a line feed (newline).
.Pp
In case of an error
.Nm
writes a diagnostic message to stderr.
.Sh EXIT STATUS
.Bl -tag -width Ds
.It 0
Image processed successfully.
.It 1
An error occurred.
.El
.Sh OPTIONS
.Nm
optionally takes a single argument which is either "w" to only print the width or "h" to
only print the height.
.Pp
If no arguments are provided then both the width and height will be printed
separated with a space character.
.Sh EXAMPLES
$
.Nm
< image.ff
.Pp
$
.Nm
w < image.ff
.Pp
$
.Nm
h < image.ff
.Sh SEE ALSO
.Xr farbfeld 5 ,
.Xr farbfeld-utils 7