diff --git a/usr.sbin/bsdconfig/bsdconfig b/usr.sbin/bsdconfig/bsdconfig
index c2a024daa831..ea72d3cf164e 100755
--- a/usr.sbin/bsdconfig/bsdconfig
+++ b/usr.sbin/bsdconfig/bsdconfig
@@ -73,7 +73,7 @@ usage()
 	# Determine the maximum width of terminal/console
 	#
 	local max_size max_width
-	max_size=$( stty size 2>&- )
+	max_size=$( stty size 2> /dev/null )
 	: ${max_size:="24 80"}
 	max_width="${max_size#*[$IFS]}"
 	f_dprintf "max_width=[$max_width]"
@@ -242,8 +242,8 @@ if [ "$1" ]; then
 	#
 	lang="${LANG:-$LC_ALL}"
 	if [ "$lang" ]; then
-		sel=$( grep "^menu_selection=\"$1|" */INDEX.$lang 2>&- |
-		       	tail -1 )
+		sel=$( grep "^menu_selection=\"$1|" */INDEX.$lang \
+		       		2> /dev/null | tail -1 )
 
 		# Fall-back to non-i18n sources if nothing was found
 		[ "$sel" ] ||
diff --git a/usr.sbin/bsdconfig/console/ttys b/usr.sbin/bsdconfig/console/ttys
index 8ec55d81e2d7..fcf45efe63b6 100755
--- a/usr.sbin/bsdconfig/console/ttys
+++ b/usr.sbin/bsdconfig/console/ttys
@@ -117,8 +117,8 @@ ttys_set_type()
 	# with 0600 permissions -- change the permissions and ownership to
 	# match ttys(5) before we write it out and mv(1) it into place).
 	#
-	local mode="$( stat -f '%#Lp' "$ETC_TTYS" 2>&- )"
-	local owner="$( stat -f '%u:%g' "$ETC_TTYS" 2>&- )"
+	local mode="$( stat -f '%#Lp' "$ETC_TTYS" 2> /dev/null )"
+	local owner="$( stat -f '%u:%g' "$ETC_TTYS" 2> /dev/null )"
 	f_quietly chmod "${mode:-0644}" "$tmpfile"
 	f_quietly chown "${owner:-root:wheel}" "$tmpfile"
 
diff --git a/usr.sbin/bsdconfig/mouse/enable b/usr.sbin/bsdconfig/mouse/enable
index 30f7c57b41bc..e1cf7962d6d2 100755
--- a/usr.sbin/bsdconfig/mouse/enable
+++ b/usr.sbin/bsdconfig/mouse/enable
@@ -86,7 +86,7 @@ flags=$( f_sysrc_get moused_flags )
 #
 f_dialog_info "$msg_trying_to_start_the_mouse_daemon"
 [ -r "$MOUSED_PIDFILE" ] &&
-	f_quietly kill "$( cat "$MOUSED_PIDFILE" 2>&- )"
+	f_quietly kill "$( cat "$MOUSED_PIDFILE" 2> /dev/null )"
 f_quietly vidcontrol -m on
 f_quietly moused -t "$type" -p "$port" $flags
 
diff --git a/usr.sbin/bsdconfig/networking/devices b/usr.sbin/bsdconfig/networking/devices
index ec55155e8a8d..c7c550fe21da 100755
--- a/usr.sbin/bsdconfig/networking/devices
+++ b/usr.sbin/bsdconfig/networking/devices
@@ -112,7 +112,7 @@ while :; do
 			# configuration
 			#
 			dhcp=
-			eval "$( exec 2>&-
+			eval "$( exec 2> /dev/null
 			         set -- $_ifconfig
 			         while [ $# -gt 0 ]; do
 			         	case "$1" in
diff --git a/usr.sbin/bsdconfig/networking/share/device.subr b/usr.sbin/bsdconfig/networking/share/device.subr
index a058884b0606..17c7467bbae0 100644
--- a/usr.sbin/bsdconfig/networking/share/device.subr
+++ b/usr.sbin/bsdconfig/networking/share/device.subr
@@ -72,7 +72,7 @@ f_device_desc()
 		devname="${device%%$d*}"
 		devunit="${device#$devname}"
 		devunit="${devunit%%[a-zA-Z_]*}"
-		sysctl -n "dev.$devname.$devunit.%desc" 2>&- &&
+		sysctl -n "dev.$devname.$devunit.%desc" 2> /dev/null &&
 			return $SUCCESS
 	fi
 
diff --git a/usr.sbin/bsdconfig/networking/share/ipaddr.subr b/usr.sbin/bsdconfig/networking/share/ipaddr.subr
index 707e9818bccd..7e858dc296a8 100644
--- a/usr.sbin/bsdconfig/networking/share/ipaddr.subr
+++ b/usr.sbin/bsdconfig/networking/share/ipaddr.subr
@@ -47,7 +47,7 @@ f_include_lang $BSDCFG_LIBE/$APP_DIR/include/messages.subr
 f_ifconfig_inet()
 {
 	local interface="$1"
-	ifconfig "$interface" 2>&- | awk \
+	ifconfig "$interface" 2> /dev/null | awk \
 	'
 		BEGIN { found = 0 }
 		( $1 == "inet" ) \
diff --git a/usr.sbin/bsdconfig/networking/share/media.subr b/usr.sbin/bsdconfig/networking/share/media.subr
index d863b3eb42b7..e7da98ad3e3a 100644
--- a/usr.sbin/bsdconfig/networking/share/media.subr
+++ b/usr.sbin/bsdconfig/networking/share/media.subr
@@ -83,7 +83,7 @@ f_ifconfig_options()
 f_ifconfig_media()
 {
 	local interface="$1"
-	ifconfig -m "$interface" 2>&- | awk \
+	ifconfig -m "$interface" 2> /dev/null | awk \
 	'
 		BEGIN { media_found = 0 }
 		{
diff --git a/usr.sbin/bsdconfig/networking/share/netmask.subr b/usr.sbin/bsdconfig/networking/share/netmask.subr
index a502dc46ed1a..2f2b37853e68 100644
--- a/usr.sbin/bsdconfig/networking/share/netmask.subr
+++ b/usr.sbin/bsdconfig/networking/share/netmask.subr
@@ -46,7 +46,7 @@ f_include_lang $BSDCFG_LIBE/$APP_DIR/include/messages.subr
 f_ifconfig_netmask()
 {
 	local interface="$1" octets
-	octets=$( ifconfig "$interface" 2>&- | awk \
+	octets=$( ifconfig "$interface" 2> /dev/null | awk \
 	'
 		BEGIN { found = 0 }
 		( $1 == "inet" ) \
diff --git a/usr.sbin/bsdconfig/networking/share/resolv.subr b/usr.sbin/bsdconfig/networking/share/resolv.subr
index dc96345e4f06..154748ba52e8 100644
--- a/usr.sbin/bsdconfig/networking/share/resolv.subr
+++ b/usr.sbin/bsdconfig/networking/share/resolv.subr
@@ -65,7 +65,7 @@ f_include_lang $BSDCFG_LIBE/$APP_DIR/include/messages.subr
 #
 f_resolv_conf_domain()
 {
-	tail -r "$RESOLV_CONF" 2>&- | awk \
+	tail -r "$RESOLV_CONF" 2> /dev/null | awk \
 	'
 		BEGIN { found = 0 }
 		( tolower($1) == "domain" ) \
@@ -84,7 +84,7 @@ f_resolv_conf_domain()
 #
 f_resolv_conf_search()
 {
-	tail -r "$RESOLV_CONF" 2>&- | awk \
+	tail -r "$RESOLV_CONF" 2> /dev/null | awk \
 	'
 		BEGIN { found = 0 }
 		{
@@ -118,7 +118,7 @@ f_resolv_conf_nameservers()
 		}
 		END { exit ! found }
 	' \
-	"$RESOLV_CONF" 2>&-
+	"$RESOLV_CONF" 2> /dev/null
 }
 
 # f_dialog_resolv_conf_update $hostname
@@ -225,8 +225,8 @@ f_dialog_resolv_conf_update()
 		# permissions and ownership to match resolv.conf(5) before
 		# we write it out and mv(1) it into place).
 		#
-		local mode="$( stat -f '%#Lp' "$RESOLV_CONF" 2>&- )"
-		local owner="$( stat -f '%u:%g' "$RESOLV_CONF" 2>&- )"
+		local mode="$( stat -f '%#Lp' "$RESOLV_CONF" 2> /dev/null )"
+		local owner="$( stat -f '%u:%g' "$RESOLV_CONF" 2> /dev/null )"
 		f_quietly chmod "${mode:-0644}" "$tmpfile"
 		f_quietly chown "${owner:-root:wheel}" "$tmpfile"
 
@@ -246,7 +246,7 @@ f_dialog_resolv_conf_update()
 		#
 		local domain="${hostname#*.}" new_contents
 		[ "$domain" = "$hostname" ] && domain=
-		new_contents=$( tail -r "$RESOLV_CONF" 2>&- )
+		new_contents=$( tail -r "$RESOLV_CONF" 2> /dev/null )
 		new_contents=$( echo "$new_contents" | awk \
 			-v domain="$domain" \
 			-v search_all="${RESOLVER_SEARCH_DOMAINS_ALL:-1}" \
@@ -397,8 +397,8 @@ f_dialog_input_nameserver()
 		# Quietly fixup permissions and ownership
 		#
 		local mode owner
-		mode=$( stat -f '%#Lp' "$RESOLV_CONF" 2>&- )
-		owner=$( stat -f '%u:%g' "$RESOLV_CONF" 2>&- )
+		mode=$( stat -f '%#Lp' "$RESOLV_CONF" 2> /dev/null )
+		owner=$( stat -f '%u:%g' "$RESOLV_CONF" 2> /dev/null )
 		f_quietly chmod "${mode:-0644}" "$tmpfile"
 		f_quietly chown "${owner:-root:wheel}" "$tmpfile"
 
diff --git a/usr.sbin/bsdconfig/networking/share/routing.subr b/usr.sbin/bsdconfig/networking/share/routing.subr
index 6c03f4c7943b..b8ccdcd6f987 100644
--- a/usr.sbin/bsdconfig/networking/share/routing.subr
+++ b/usr.sbin/bsdconfig/networking/share/routing.subr
@@ -46,7 +46,7 @@ f_include_lang $BSDCFG_LIBE/$APP_DIR/include/messages.subr
 #
 f_route_get_default()
 {
-	route -n get default 2>&- | awk \
+	route -n get default 2> /dev/null | awk \
 	'
 		BEGIN { found = 0 }
 		( $1 == "gateway:" ) \
diff --git a/usr.sbin/bsdconfig/share/common.subr b/usr.sbin/bsdconfig/share/common.subr
index 49d302311689..c724c62f6700 100644
--- a/usr.sbin/bsdconfig/share/common.subr
+++ b/usr.sbin/bsdconfig/share/common.subr
@@ -72,7 +72,7 @@ f_err()
 #
 f_quietly()
 {
-	"$@" >&- 2>&-
+	"$@" > /dev/null 2>&1
 }
 
 # f_have $anything ...
diff --git a/usr.sbin/bsdconfig/share/dialog.subr b/usr.sbin/bsdconfig/share/dialog.subr
index 4f86e7bfde57..d2ba529f323c 100644
--- a/usr.sbin/bsdconfig/share/dialog.subr
+++ b/usr.sbin/bsdconfig/share/dialog.subr
@@ -1321,7 +1321,7 @@ f_dialog_init()
 	# Process stored command-line arguments
 	#
 	SECURE=$( set -- "$ARGV"
-		while getopts S flag >&-; do
+		while getopts S flag > /dev/null; do
 			case "$flag" in
 			S) echo 1;;
 			\?) continue;;
@@ -1329,7 +1329,7 @@ f_dialog_init()
 		done
 	)
 	USE_XDIALOG=$( set -- "$ARGV"
-		while getopts SX flag >&-; do
+		while getopts SX flag > /dev/null; do
 			case "$flag" in
 			S|X) echo 1;;
 			\?) continue;;
@@ -1372,7 +1372,7 @@ f_dialog_init()
 		eval xauth -if \~$SUDO_USER/.Xauthority extract - \
 			\"\$HOSTNAME/unix:\$displaynum\" \
 			\"\$HOSTNAME:\$displaynum\" | sudo sh -c 'xauth -ivf \
-			~root/.Xauthority merge - >&- 2>&-'
+			~root/.Xauthority merge - > /dev/null 2>&1'
 	fi
 
 	#
diff --git a/usr.sbin/bsdconfig/share/mustberoot.subr b/usr.sbin/bsdconfig/share/mustberoot.subr
index 234724e0803e..c6514c0d4b1e 100644
--- a/usr.sbin/bsdconfig/share/mustberoot.subr
+++ b/usr.sbin/bsdconfig/share/mustberoot.subr
@@ -85,7 +85,7 @@ f_become_root_via_sudo()
 	#
 	# Check sudo(8) access before prompting for password.
 	#
-	:| sudo -S -v 2>&-
+	:| sudo -S -v 2> /dev/null
 	if [ $? -ne $SUCCESS ]; then
 		#
 		# sudo(8) access denied. Prompt for their password.
@@ -112,7 +112,7 @@ f_become_root_via_sudo()
 					--ok-label "$msg_ok"               \
 					--cancel-label "$msg_cancel"       \
 					--password --inputbox "$msg" $size \
-					2>&1 >&- )
+					2>&1 > /dev/null )
 				retval=$?
 
 				# Catch X11-related errors
@@ -141,7 +141,7 @@ f_become_root_via_sudo()
 			#
 			# Validate sudo(8) credentials
 			#
-			sudo -S -v 2>&- <<-EOF
+			sudo -S -v 2> /dev/null <<-EOF
 			$password
 			EOF
 			retval=$?
@@ -186,7 +186,7 @@ f_become_root_via_sudo()
 		displaynum="${DISPLAY#*:}"
 		xauth -f ~/.Xauthority extract - $HOSTNAME/unix:$displaynum \
 			$HOSTNAME:$displaynum | sudo sh -c 'xauth -ivf \
-			~root/.Xauthority merge - >&- 2>&-'
+			~root/.Xauthority merge - > /dev/null 2>&1'
 	fi
 
 	# Re-execute ourselves with sudo(8)
@@ -254,7 +254,7 @@ f_authenticate_some_user()
 			$height $width                  \
 			"$field_username" ""            \
 			"$field_password" ""            \
-			2>&1 >&- )
+			2>&1 > /dev/null )
 		retval=$?
 
 		# Catch X11-related errors
@@ -302,7 +302,7 @@ f_authenticate_some_user()
 		su -m "$user" <<-EOF
 			sh <<EOS
 				sudo -k
-				sudo -S -v 2>&- <<EOP
+				sudo -S -v 2> /dev/null <<EOP
 				$password
 				EOP
 			EOS
diff --git a/usr.sbin/bsdconfig/share/strings.subr b/usr.sbin/bsdconfig/share/strings.subr
index fac55fe5b77f..1a330ad6b472 100644
--- a/usr.sbin/bsdconfig/share/strings.subr
+++ b/usr.sbin/bsdconfig/share/strings.subr
@@ -98,7 +98,7 @@ f_isinteger()
 	# Attempt to perform arithmetic divison (an operation which will exit
 	# with error unless arg is a valid positive/negative whole integer).
 	#
-	( : $((0/$arg)) ) >&- 2>&-
+	( : $((0/$arg)) ) > /dev/null 2>&1
 }
 
 fi # ! $_STRINGS_SUBR
diff --git a/usr.sbin/bsdconfig/share/sysrc.subr b/usr.sbin/bsdconfig/share/sysrc.subr
index e39b67ae4bff..014ab46a1f51 100644
--- a/usr.sbin/bsdconfig/share/sysrc.subr
+++ b/usr.sbin/bsdconfig/share/sysrc.subr
@@ -134,7 +134,7 @@ f_sysrc_get()
 		#
 		f_clean_env --except RC_CONFS RC_DEFAULTS SUCCESS
 
-		. "$RC_DEFAULTS" >&- 2>&-
+		. "$RC_DEFAULTS" > /dev/null 2>&1
 
 		unset RC_DEFAULTS
 			# no longer needed
@@ -153,7 +153,7 @@ f_sysrc_get()
 		# If RC_CONFS is defined, set $rc_conf_files to an explicit
 		# value, modifying the default behavior of source_rc_confs().
 		#
-		( : ${RC_CONFS?} ) >&- 2>&-
+		( : ${RC_CONFS?} ) > /dev/null 2>&1
 		if [ $? -eq ${SUCCESS:-0} ]; then
 			rc_conf_files="$RC_CONFS"
 			_rc_confs_set=1
@@ -162,7 +162,7 @@ f_sysrc_get()
 		unset SUCCESS
 			# no longer needed
 
-		source_rc_confs >&- 2>&-
+		source_rc_confs > /dev/null 2>&1
 
 		#
 		# If the query was for `rc_conf_files' AND after calling
@@ -190,7 +190,7 @@ f_sysrc_get()
 		# such as "${varname?}" and "${varname:?}" (see "Parameter
 		# Expansion" in sh(1) for more information).
 		#
-		eval echo '"${'"$1"'}"' 2>&-
+		eval echo '"${'"$1"'}"' 2> /dev/null
 	)
 }
 
@@ -221,7 +221,7 @@ f_sysrc_get_default()
 		#
 		f_clean_env --except RC_DEFAULTS
 
-		. "$RC_DEFAULTS" >&- 2>&-
+		. "$RC_DEFAULTS" > /dev/null 2>&1
 
 		unset RC_DEFAULTS
 			# no longer needed
@@ -232,7 +232,7 @@ f_sysrc_get_default()
 		# such as "${varname?}" and "${varname:?}" (see "Parameter
 		# Expansion" in sh(1) for more information).
 		#
-		eval echo '"${'"$1"'}"' 2>&-
+		eval echo '"${'"$1"'}"' 2> /dev/null
 	)
 }
 
@@ -477,7 +477,7 @@ f_sysrc_set()
 	# permissions from the temporary file).
 	#
 	local mode
-	mode=$( stat -f '%#Lp' "$file" 2>&- )
+	mode=$( stat -f '%#Lp' "$file" 2> /dev/null )
 	f_quietly chmod "${mode:-0644}" "$tmpfile"
 
 	#
@@ -486,14 +486,14 @@ f_sysrc_set()
 	# permissions (so we throw stderr into the bit-bucket).
 	#
 	local owner
-	owner=$( stat -f '%u:%g' "$file" 2>&- )
+	owner=$( stat -f '%u:%g' "$file" 2> /dev/null )
 	f_quietly chown "${owner:-root:wheel}" "$tmpfile"
 
 	#
 	# Operate on the matching file, replacing only the last occurrence.
 	#
 	local new_contents retval
-	new_contents=$( tail -r $file 2>&- )
+	new_contents=$( tail -r $file 2> /dev/null )
 	new_contents=$( echo "$new_contents" | awk -v varname="$varname" \
 		-v new_value="$new_value" "$f_sysrc_set_awk" )
 	retval=$?
@@ -572,8 +572,8 @@ f_sysrc_delete()
 		# permissions) to instead match the destination file.
 		#
 		local mode owner
-		mode=$( stat -f '%#Lp' "$file" 2>&- )
-		owner=$( stat -f '%u:%g' "$file" 2>&- )
+		mode=$( stat -f '%#Lp' "$file" 2> /dev/null )
+		owner=$( stat -f '%u:%g' "$file" 2> /dev/null )
 		f_quietly chmod "${mode:-0644}" "$tmpfile"
 		f_quietly chown "${owner:-root:wheel}" "$tmpfile"
 
diff --git a/usr.sbin/bsdconfig/startup/rcadd b/usr.sbin/bsdconfig/startup/rcadd
index ae7f9fc70dbe..d9d6a045353d 100755
--- a/usr.sbin/bsdconfig/startup/rcadd
+++ b/usr.sbin/bsdconfig/startup/rcadd
@@ -46,7 +46,7 @@ ipgm=$( f_index_menu_selection $BSDCFG_LIBE/$APP_DIR/INDEX "$pgm" )
 # Options
 #
 # Inherit SHOW_DESC value if set, otherwise default to 1
-( : ${SHOW_DESC?} ) >&- 2>&- || SHOW_DESC=1
+( : ${SHOW_DESC?} ) > /dev/null 2>&1 || SHOW_DESC=1
 
 ############################################################ FUNCTIONS
 
diff --git a/usr.sbin/bsdconfig/startup/rcconf b/usr.sbin/bsdconfig/startup/rcconf
index 1055f9415064..3f7c25049ea3 100755
--- a/usr.sbin/bsdconfig/startup/rcconf
+++ b/usr.sbin/bsdconfig/startup/rcconf
@@ -54,7 +54,7 @@ RCCONF_MENU_LIST=
 # Options
 #
 # Inherit SHOW_DESC value if set, otherwise default to 1
-( : ${SHOW_DESC?} ) >&- 2>&- || SHOW_DESC=1
+( : ${SHOW_DESC?} ) > /dev/null 2>&1 || SHOW_DESC=1
 # Selectively inherit SHOW_* value (in order of preference)
 if [ "$SHOW_DEFAULT_VALUE" ]; then
 	SHOW_DEFAULT_VALUE=1
@@ -110,8 +110,8 @@ dialog_menu_main()
 		f_dialog_info "$msg_creating_menu_list"
 
 	RCCONF_MENU_LIST="$RCCONF_MENU_LIST $(
-		. "$RC_DEFAULTS" >&-
-		source_rc_confs >&-
+		. "$RC_DEFAULTS" > /dev/null
+		source_rc_confs > /dev/null
 		var_list=$( f_startup_rcconf_list )
 		for var in $var_list; do
 			eval export $var
diff --git a/usr.sbin/bsdconfig/startup/rcdelete b/usr.sbin/bsdconfig/startup/rcdelete
index a93733e38f09..a97025838c08 100755
--- a/usr.sbin/bsdconfig/startup/rcdelete
+++ b/usr.sbin/bsdconfig/startup/rcdelete
@@ -54,7 +54,7 @@ RCCONF_MENU_LIST=
 # Options
 #
 # Inherit SHOW_DESC value if set, otherwise default to 1
-( : ${SHOW_DESC?} ) >&- 2>&- || SHOW_DESC=1
+( : ${SHOW_DESC?} ) > /dev/null 2>&1 || SHOW_DESC=1
 # Selectively inherit SHOW_* value (in order of preference)
 if [ "$SHOW_DEFAULT_VALUE" ]; then
 	SHOW_DEFAULT_VALUE=1
@@ -112,8 +112,8 @@ dialog_menu_main()
 		f_dialog_info "$msg_creating_menu_list"
 
 	RCCONF_MENU_LIST="$RCCONF_MENU_LIST $(
-		. "$RC_DEFAULTS" >&-
-		source_rc_confs >&-
+		. "$RC_DEFAULTS" > /dev/null
+		source_rc_confs > /dev/null
 		var_list=$( f_startup_rcconf_list )
 		for var in $var_list; do
 			eval export $var
@@ -348,7 +348,7 @@ while :; do
 		var="${mtag# }"
 
 		# Toggle the state-variable and loop back to menu
-		if ( eval : \${_${var}_delete?} ) >&- 2>&-; then
+		if ( eval : \${_${var}_delete?} ) > /dev/null 2>&1; then
 			unset _${var}_delete
 		else
 			setvar _${var}_delete 1
diff --git a/usr.sbin/bsdconfig/startup/rcvar b/usr.sbin/bsdconfig/startup/rcvar
index 19171391a708..799dd3426b1b 100755
--- a/usr.sbin/bsdconfig/startup/rcvar
+++ b/usr.sbin/bsdconfig/startup/rcvar
@@ -54,7 +54,7 @@ RCVAR_MENU_LIST=
 # Options
 #
 # Inherit SHOW_DESC value if set, otherwise default to 1
-( ${SHOW_DESC?} ) >&- 2>&- || SHOW_DESC=1
+( ${SHOW_DESC?} ) > /dev/null 2>&1 || SHOW_DESC=1
 
 ############################################################ FUNCTIONS
 
@@ -82,8 +82,8 @@ dialog_menu_main()
 	fi
 
 	RCVAR_MENU_LIST="$RCVAR_MENU_LIST $(
-		. "$RC_DEFAULTS" >&-
-		source_rc_confs >&-
+		. "$RC_DEFAULTS" > /dev/null
+		source_rc_confs > /dev/null
 		for rcvar in $( echo "$RCVAR_MAP" | awk '{print $1}' ); do
 			eval export $rcvar
 		done
diff --git a/usr.sbin/bsdconfig/startup/share/rcconf.subr b/usr.sbin/bsdconfig/startup/share/rcconf.subr
index ef413d1bee08..25dec5478433 100644
--- a/usr.sbin/bsdconfig/startup/share/rcconf.subr
+++ b/usr.sbin/bsdconfig/startup/share/rcconf.subr
@@ -63,9 +63,9 @@ STARTUP_RCCONF_MAP_CACHEFILE="/var/run/bsdconfig/startup_rcconf_map.cache"
 f_startup_rcconf_list()
 {
 	( # Operate within a sub-shell to protect the parent environment
-		. "$RC_DEFAULTS" >&-
+		. "$RC_DEFAULTS" > /dev/null
 		f_clean_env --except PATH STARTUP_RCCONF_REGEX rc_conf_files
-		source_rc_confs >&-
+		source_rc_confs > /dev/null
 		export _rc_conf_files_file="$( f_sysrc_find rc_conf_files )"
 		export RC_DEFAULTS
 		set | awk -F= "
diff --git a/usr.sbin/bsdconfig/timezone/share/zones.subr b/usr.sbin/bsdconfig/timezone/share/zones.subr
index f3db07c9b6c9..874b27200459 100644
--- a/usr.sbin/bsdconfig/timezone/share/zones.subr
+++ b/usr.sbin/bsdconfig/timezone/share/zones.subr
@@ -610,7 +610,7 @@ f_install_zoneinfo()
 
 	# Save knowledge for later
 	if [ "$REALLYDOIT" -a $rv -eq $SUCCESS ]; then
-		if : 2>&- > "$_PATH_DB"; then
+		if : 2> /dev/null > "$_PATH_DB"; then
 			cat <<-EOF > "$_PATH_DB"
 			$zoneinfo
 			EOF
diff --git a/usr.sbin/bsdconfig/usermgmt/share/user_input.subr b/usr.sbin/bsdconfig/usermgmt/share/user_input.subr
index 7fa9d7973889..8b356b67136e 100644
--- a/usr.sbin/bsdconfig/usermgmt/share/user_input.subr
+++ b/usr.sbin/bsdconfig/usermgmt/share/user_input.subr
@@ -627,7 +627,7 @@ f_dialog_input_change()
 			local secs="$_input"
 			{ f_isinteger "$secs" && [ $secs -gt 0 ]; } || secs=
 			_input_date=$( date -j -f "%s" -- "$secs" \
-			               		"+%d %m %Y" 2>&- )
+			               		"+%d %m %Y" 2> /dev/null )
 			calendar_size=$( f_dialog_calendar_size \
 			                 	"$DIALOG_TITLE"     \
 			                 	"$DIALOG_BACKTITLE" \
@@ -654,7 +654,7 @@ f_dialog_input_change()
 
 			_input_time=
 			[ "$secs" ] && _input_time=$( date -j \
-				-f %s -- "$_input" "+%H %M %S" 2>&- )
+				-f %s -- "$_input" "+%H %M %S" 2> /dev/null )
 			timebox_size=$( f_dialog_timebox_size \
 			                	"$DIALOG_TITLE"     \
 			                	"$DIALOG_BACKTITLE" \
@@ -682,7 +682,7 @@ f_dialog_input_change()
 			_input=$( date \
 			          	-j -f "%d/%m/%Y %T" \
 			          	-- "$ret_date $ret_time" \
-			          	+%s 2>&- )
+			          	+%s 2> /dev/null )
 			f_dprintf "_input=[$_input]"
 			break ;;
 
@@ -852,7 +852,7 @@ f_dialog_input_expire()
 			local secs="$_input"
 			{ f_isinteger "$secs" && [ $secs -gt 0 ]; } || secs=
 			_input_date=$( date -j -f "%s" -- "$secs" \
-			               		"+%d %m %Y" 2>&- )
+			               		"+%d %m %Y" 2> /dev/null )
 			calendar_size=$( f_dialog_calendar_size \
 			                 	"$DIALOG_TITLE"     \
 			                 	"$DIALOG_BACKTITLE" \
@@ -879,7 +879,7 @@ f_dialog_input_expire()
 
 			_input_time=
 			[ "$secs" ] && _input_time=$( date -j \
-				-f %s -- "$_input" "+%H %M %S" 2>&- )
+				-f %s -- "$_input" "+%H %M %S" 2> /dev/null )
 			timebox_size=$( f_dialog_timebox_size \
 			                	"$DIALOG_TITLE"     \
 			                	"$DIALOG_BACKTITLE" \
@@ -906,7 +906,7 @@ f_dialog_input_expire()
 			_input=$( date \
 			          	-j -f "%d/%m/%Y %T" \
 			          	-- "$ret_date $ret_time" \
-			          	+%s 2>&- )
+			          	+%s 2> /dev/null )
 			f_dprintf "_input=[$_input]"
 			break ;;