improve dns scripts

dns/check_domains.sh

 #!/bin/sh
 
+mkdir -p whois-cache
+
+print_whois()
+{
+	if [ ! -s "whois-cache/$1" ] ; then
+		sleep 1
+		if ! whois "$1" > "whois-cache/$1" ; then
+			echo "no WHOIS for $1" >&2
+			rm -f "whois-cache/$1"
+			return 1
+		fi
+	fi
+	cat "whois-cache/$1"
+	return
+}
+
 for i in /var/lib/bind/zone/* ; do
-	echo "$i" | egrep -q "(arpa|template|\.sh|\.common)" && continue
+	[ -d "$i" ] && continue
+	basename "$i" | egrep -q "(arpa|template|\.sh|\.common|^local|empty)" && continue
+	basename "$i" | egrep -q "(etersoft)" && continue
 	domain=$(basename "$i")
-	whois "$domain" | grep -q -i "ns[1|4].etersoft.ru" &>/dev/null && continue
+	print_whois "$domain" | grep -q -i "ns[1|4].etersoft.ru" &>/dev/null && continue
+	print_whois "$domain" | grep -q -i "ns[1|2].azbyka.ru" &>/dev/null && continue
 	echo "$domain left our"
-	sleep 1
 done

dns/nic_domains.sh

 #!/bin/sh
 # https://www.nic.ru/manager/docs/partners/protocol/access_list_domains.shtml
 passwd=$(cat /home/share/Внутренние/nic-passwd)
-curl "https://www.nic.ru/downloads/domains.gz?login=7550/NIC-REG/adm&password=$passwd" | ercat > domains.tsv
+curl "https://www.nic.ru/downloads/domains.gz?login=7550/NIC-REG/adm&password=$passwd" | gunzip > domains.tsv
 #sort -k3.8 -k3.4 -k3.1