diff --git a/bin/df/df.1 b/bin/df/df.1
index 046247a522cf..823e585785d6 100644
--- a/bin/df/df.1
+++ b/bin/df/df.1
@@ -29,7 +29,7 @@
 .\"     @(#)df.1	8.3 (Berkeley) 5/8/95
 .\" $FreeBSD$
 .\"
-.Dd November 6, 2014
+.Dd December 1, 2015
 .Dt DF 1
 .Os
 .Sh NAME
@@ -62,6 +62,13 @@ option below).
 .Pp
 The following options are available:
 .Bl -tag -width indent
+.It Fl -libxo
+Generate output via
+.Xr libxo 3
+in a selection of different human and machine readable formats.
+See
+.Xr xo_parse_args 3
+for details on command line arguments.
 .It Fl a
 Show all mount points, including those that were mounted with the
 .Dv MNT_IGNORE
diff --git a/bin/ls/ls.1 b/bin/ls/ls.1
index 6bca9aa45abc..16ad49b87c57 100644
--- a/bin/ls/ls.1
+++ b/bin/ls/ls.1
@@ -32,7 +32,7 @@
 .\"     @(#)ls.1	8.7 (Berkeley) 7/29/94
 .\" $FreeBSD$
 .\"
-.Dd September 27, 2015
+.Dd December 1, 2015
 .Dt LS 1
 .Os
 .Sh NAME
@@ -69,6 +69,13 @@ lexicographical order.
 .Pp
 The following options are available:
 .Bl -tag -width indent
+.It Fl -libxo
+Generate output via
+.Xr libxo 3
+in a selection of different human and machine readable formats.
+See
+.Xr xo_parse_args 3
+for details on command line arguments.
 .It Fl A
 Include directory entries whose names begin with a
 dot
diff --git a/bin/ps/ps.1 b/bin/ps/ps.1
index 240fa20bae59..ad506e475728 100644
--- a/bin/ps/ps.1
+++ b/bin/ps/ps.1
@@ -29,7 +29,7 @@
 .\"     @(#)ps.1	8.3 (Berkeley) 4/18/94
 .\" $FreeBSD$
 .\"
-.Dd May 27, 2015
+.Dd December 1, 2015
 .Dt PS 1
 .Os
 .Sh NAME
@@ -103,6 +103,13 @@ and associated command.
 .Pp
 The options are as follows:
 .Bl -tag -width indent
+.It Fl -libxo
+Generate output via
+.Xr libxo 3
+in a selection of different human and machine readable formats.
+See
+.Xr xo_parse_args 3
+for details on command line arguments.
 .It Fl a
 Display information about other users' processes as well as your own.
 If the
diff --git a/sbin/savecore/savecore.8 b/sbin/savecore/savecore.8
index c7d7e953682b..af46d05e4d62 100644
--- a/sbin/savecore/savecore.8
+++ b/sbin/savecore/savecore.8
@@ -28,7 +28,7 @@
 .\"     From: @(#)savecore.8	8.1 (Berkeley) 6/5/93
 .\" $FreeBSD$
 .\"
-.Dd December 17, 2012
+.Dd December 1, 2015
 .Dt SAVECORE 8
 .Os
 .Sh NAME
@@ -44,6 +44,7 @@
 .Op Fl v
 .Op Ar device ...
 .Nm
+.Op Fl -libxo
 .Op Fl fkvz
 .Op Fl m Ar maxdumps
 .Op Ar directory Op Ar device ...
@@ -61,6 +62,13 @@ the system log.
 .Pp
 The options are as follows:
 .Bl -tag -width ".Fl m Ar maxdumps"
+.It Fl -libxo
+Generate output via
+.Xr libxo 3
+in a selection of different human and machine readable formats.
+See
+.Xr xo_parse_args 3
+for details on command line arguments.
 .It Fl C
 Check to see if a dump exists,
 and display a brief message to indicate the status.
@@ -154,6 +162,8 @@ is meant to be called near the end of the initialization file
 .Sh SEE ALSO
 .Xr gzip 1 ,
 .Xr getbootfile 3 ,
+.Xr libxo 3 ,
+.Xr xo_parse_args 3 ,
 .Xr textdump 4 ,
 .Xr tar 5 ,
 .Xr dumpon 8 ,
diff --git a/usr.bin/iscsictl/iscsictl.8 b/usr.bin/iscsictl/iscsictl.8
index ffa2e15022ef..d31e170303e6 100644
--- a/usr.bin/iscsictl/iscsictl.8
+++ b/usr.bin/iscsictl/iscsictl.8
@@ -27,7 +27,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd October 17, 2015
+.Dd December 1, 2015
 .Dt ISCSICTL 8
 .Os
 .Sh NAME
@@ -80,6 +80,13 @@ utility is used to configure the iSCSI initiator.
 .Pp
 The following options are available:
 .Bl -tag -width ".Fl A"
+.It Fl -libxo
+Generate output via
+.Xr libxo 3
+in a selection of different human and machine readable formats.
+See
+.Xr xo_parse_args 3
+for details on command line arguments.
 .It Fl A
 Add session.
 .It Fl M
@@ -182,7 +189,9 @@ Disconnect all iSCSI sessions:
 .Sh SEE ALSO
 .Xr iscsi 4 ,
 .Xr iscsi.conf 5 ,
-.Xr iscsid 8
+.Xr iscsid 8 ,
+.Xr libxo 3 ,
+.Xr xo_parse_args 3
 .Sh HISTORY
 The
 .Nm
diff --git a/usr.bin/netstat/netstat.1 b/usr.bin/netstat/netstat.1
index 33eb2169bf1c..a7e52916b0ac 100644
--- a/usr.bin/netstat/netstat.1
+++ b/usr.bin/netstat/netstat.1
@@ -28,7 +28,7 @@
 .\"	@(#)netstat.1	8.8 (Berkeley) 4/18/94
 .\" $FreeBSD$
 .\"
-.Dd August 27, 2015
+.Dd December 1, 2015
 .Dt NETSTAT 1
 .Os
 .Sh NAME
@@ -151,6 +151,13 @@ or
 addresses and ports appear as
 .Dq Li * .
 .Bl -tag -width indent
+.It Fl -libxo
+Generate output via
+.Xr libxo 3
+in a selection of different human and machine readable formats.
+See
+.Xr xo_parse_args 3
+for details on command line arguments.
 .It Fl 4
 Show IPv4 only.
 See
diff --git a/usr.bin/w/w.1 b/usr.bin/w/w.1
index 445462b20cd6..a8c30be5950d 100644
--- a/usr.bin/w/w.1
+++ b/usr.bin/w/w.1
@@ -28,7 +28,7 @@
 .\"     @(#)w.1	8.1 (Berkeley) 6/6/93
 .\" $FreeBSD$
 .\"
-.Dd November 5, 2014
+.Dd December 1, 2015
 .Dt W 1
 .Os
 .Sh NAME
@@ -59,6 +59,13 @@ and the name and arguments of the current process.
 .Pp
 The options are as follows:
 .Bl -tag -width indent
+.It Fl -libxo
+Generate output via
+.Xr libxo 3
+in a selection of different human and machine readable formats.
+See
+.Xr xo_parse_args 3
+for details on command line arguments.
 .It Fl d
 dumps out the entire process list on a per controlling
 tty basis, instead of just the top level process.
diff --git a/usr.bin/wc/wc.1 b/usr.bin/wc/wc.1
index cda737b55d46..8f78fad4ee12 100644
--- a/usr.bin/wc/wc.1
+++ b/usr.bin/wc/wc.1
@@ -31,7 +31,7 @@
 .\"     @(#)wc.1	8.2 (Berkeley) 4/19/94
 .\" $FreeBSD$
 .\"
-.Dd August 24, 2015
+.Dd December 1, 2015
 .Dt WC 1
 .Os
 .Sh NAME
@@ -68,6 +68,13 @@ the last file.
 .Pp
 The following options are available:
 .Bl -tag -width indent
+.It Fl -libxo
+Generate output via
+.Xr libxo 3
+in a selection of different human and machine readable formats.
+See
+.Xr xo_parse_args 3
+for details on command line arguments.
 .It Fl L
 The number of characters in the longest input line
 is written to the standard output.