Index: usr.sbin/freebsd-update/freebsd-update.8
===================================================================
--- usr.sbin/freebsd-update/freebsd-update.8
+++ usr.sbin/freebsd-update/freebsd-update.8
@@ -25,7 +25,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd June 14, 2017
+.Dd August 30, 2019
 .Dt FREEBSD-UPDATE 8
 .Os
 .Sh NAME
@@ -95,7 +95,7 @@
 .Ar KEY .
 (default: read value from configuration file.)
 .It Fl r Ar newrelease
-Specify the new release (e.g. 11.2-RELEASE) to which
+Specify the new release (e.g., 11.2-RELEASE) to which
 .Nm
 should upgrade (upgrade command only).
 .It Fl s Ar server
@@ -155,13 +155,24 @@
 depending on which components of the
 .Fx
 base system are installed.
+.It Cm updatesready
+Check if there are fetched updates ready to install.
+Returns exit code 2 if there are no updates to install.
 .It Cm install
 Install the most recently fetched updates or upgrade.
+Returns exit code 2 if there are no updates to install
+and the
+.Cm fetch
+command wasn't passed as an earlier argument in the same
+invocation.
 .It Cm rollback
 Uninstall the most recently installed updates.
 .It Cm IDS
 Compare the system against a "known good" index of the
 installed release.
+.It Cm config
+Show configuration options after parsing conffile and command
+line options.
 .El
 .Sh TIPS
 .Bl -bullet
Index: usr.sbin/freebsd-update/freebsd-update.sh
===================================================================
--- usr.sbin/freebsd-update/freebsd-update.sh
+++ usr.sbin/freebsd-update/freebsd-update.sh
@@ -62,9 +62,11 @@
   cron         -- Sleep rand(3600) seconds, fetch updates, and send an
                   email if updates were found
   upgrade      -- Fetch upgrades to FreeBSD version specified via -r option
+  updatesready -- Check if there are fetched updates ready to install
   install      -- Install downloaded updates or upgrades
   rollback     -- Uninstall most recently installed updates
-  IDS          -- Compare the system against an index of "known good" files.
+  IDS          -- Compare the system against an index of "known good" files
+  config       -- Show configuration
 EOF
 	exit 0
 }
@@ -221,6 +223,14 @@
 # Add to the list of components which should be kept updated.
 config_Components () {
 	for C in $@; do
+		COMPONENTS="${COMPONENTS} ${C}"
+	done
+}
+
+# Remove src component from list if it isn't installed
+config_Components_src () {
+	COMPONENTS=""
+	for C in $@; do
 		if [ "$C" = "src" ]; then
 			if [ -e "${BASEDIR}/usr/src/COPYRIGHT" ]; then
 				COMPONENTS="${COMPONENTS} ${C}"
@@ -495,7 +505,8 @@
 			;;
 
 		# Commands
-		cron | fetch | upgrade | install | rollback | IDS)
+		cron | fetch | upgrade | updatesready | install | rollback |\
+		IDS | config)
 			COMMANDS="${COMMANDS} $1"
 			;;
 
@@ -819,7 +830,7 @@
 		echo "No updates are available to install."
 		if [ $ISFETCHED -eq 0 ]; then
 			echo "Run '$0 fetch' first."
-			exit 1
+			exit 2
 		fi
 		exit 0
 	fi
@@ -3284,6 +3295,7 @@
 	parse_cmdline $@
 	parse_conffile
 	default_params
+	config_Components_src ${COMPONENTS}
 }
 
 # Fetch command.  Make sure that we're being called
@@ -3324,6 +3336,21 @@
 	upgrade_run || exit 1
 }
 
+# Check if there are fetched updates ready to install
+cmd_updatesready () {
+	# Construct a unique name from ${BASEDIR}
+	BDHASH=`echo ${BASEDIR} | sha256 -q`
+
+	# Check that we have updates ready to install
+	if ! [ -L ${BDHASH}-install ]; then
+		echo "No updates are available to install."
+		exit 2
+	fi
+
+	echo "There are updates available to install."
+	echo "Run '$0 install' to proceed."
+}
+
 # Install downloaded updates.
 cmd_install () {
 	install_check_params
@@ -3342,6 +3369,13 @@
 	IDS_run || exit 1
 }
 
+# Output configuration.
+cmd_config () {
+	for X in ${CONFIGOPTIONS}; do
+		echo $X=$(eval echo \$${X})
+	done
+}
+
 #### Entry point
 
 # Make sure we find utilities from the base system