diff --git a/scripts/ifcfg.sh.in b/scripts/ifcfg.sh.in
index f8396c6..e203826 100755
--- a/scripts/ifcfg.sh.in
+++ b/scripts/ifcfg.sh.in
@@ -5,7 +5,7 @@ CFGPATH="@ETCPATH@/netcfg"
 
 # configure interfaces
 for IFPATH in /sys/class/net/*; do
-	[ "$IFPATH" == "/sys/class/net/lo" ] && continue
+	[ "$IFPATH" = "/sys/class/net/lo" ] && continue
 
 	IF=`basename $IFPATH`
 	CFGFILE="$CFGPATH/$IF"
@@ -63,7 +63,7 @@ fi
 
 # activate interfaces
 for IFPATH in /sys/class/net/*; do
-	[ "$IFPATH" == "/sys/class/net/lo" ] && continue
+	[ "$IFPATH" = "/sys/class/net/lo" ] && continue
 
 	IF=`basename $IFPATH`
 
diff --git a/scripts/ifdown.sh b/scripts/ifdown.sh
index e6f4500..02156cb 100644
--- a/scripts/ifdown.sh
+++ b/scripts/ifdown.sh
@@ -1,6 +1,6 @@
 #!/bin/sh
 for IFPATH in /sys/class/net/*; do
-	[ "$IFPATH" == "/sys/class/net/lo" ] && continue
+	[ "$IFPATH" = "/sys/class/net/lo" ] && continue
 
 	IF=`basename $IFPATH`
 
diff --git a/scripts/ifrename.sh.in b/scripts/ifrename.sh.in
index 0820c94..db770e3 100755
--- a/scripts/ifrename.sh.in
+++ b/scripts/ifrename.sh.in
@@ -7,7 +7,7 @@ TMPPATH="/tmp/ifrename"
 mkdir -p "$TMPPATH"
 
 for IFPATH in /sys/class/net/*; do
-	[ "$IFPATH" == "/sys/class/net/lo" ] && continue
+	[ "$IFPATH" = "/sys/class/net/lo" ] && continue
 
 	IF=`basename $IFPATH`
 	MAC=`cat $IFPATH/address`
diff --git a/scripts/setntpdate.sh b/scripts/setntpdate.sh
index bf0a753..2b70a97 100755
--- a/scripts/setntpdate.sh
+++ b/scripts/setntpdate.sh
@@ -15,9 +15,9 @@ resolve() {
 
 	if [ -x "$(command -v drill)" ]; then
 		if [ -z "$server" ]; then
-			drill "$domain" | grep "^${domain}." | cut -d$'\t' -f5
+			drill "$domain" | grep "^$domain." | cut -d$'\t' -f5
 		else
-			drill "@$server" "$domain" | grep "^${domain}." |\
+			drill "@$server" "$domain" | grep "^$domain." |\
 				cut -d$'\t' -f5
 		fi
 		return $?