systems, where utmp logging can be disabled by removing the file, utmp
must always exist on Linux.
If you want to disable
-.BR who (1)
+.BR who (1),
then do not make utmp world readable.
.PP
The file format is machine-dependent, so it is recommended that it be
.BR logwtmp (3),
.BR updwtmp (3),
.BR init (8)
+.SH COLOPHON
+This page is part of release 3.64 of the Linux
+.I man-pages
+project.
+A description of the project,
+and information about reporting bugs,
+can be found at
+\%http://www.kernel.org/doc/man\-pages/.