Fix #22

clear_dhcp.sh

+#!/bin/bash
+
+if [ -z "$2" ] || [ "$1" != 'Name' ] && [ "$1" != 'MAC' ]
+then
+    echo "Usage:"
+    echo "\t $0 MAC aa:bb:cc:dd:ee:ff"
+    echo "Or"
+    echo "\t $0 Name hostname"
+    exit 1
+fi
+
+lease_file="/var/lib/dhcp/dhcpd.leases"
+cp $lease_file $lease_file.$(date "+%Y%m%d-%H%M%S")
+
+if [ "$1" == 'MAC' ]
+then
+    MAC=$2
+    awk -v MAC="$MAC" 'BEGIN{IN=0;ACCU=""} /^lease/{print ACCU;ACCU="";IN=1;do_print=1} /hardware ethernet/{if($3==MAC";"){do_print=0}} {ACCU=ACCU"\n"$0} /^}$/{if(do_print==1){print ACCU};IN=0;do_print=0;ACCU=""}' $lease_file > /tmp/$$
+else
+    HOST="\"$2\""
+    awk -v HOST="$HOST" 'BEGIN{IN=0;ACCU=""} /^lease/{print ACCU;ACCU="";IN=1;do_print=1} /client-hostname/{if($2==HOST";"){do_print=0}} {ACCU=ACCU"\n"$0} /^}$/{if(do_print==1){print ACCU};IN=0;do_print=0;ACCU=""}' $lease_file > /tmp/$$
+fi
+sed '/^$/d' /tmp/$$ > $lease_file
+systemctl restart isc-dhcp-server

registry/scripts/upgrade_all.sh

@@ -150,7 +150,7 @@ do
     log "===== Begin host $name ($mac - $ip) ===="
     cat $f >> $mainlog
     log "===== End host $name ===="
-    if [ $(wc -l $f | awk '{print $1}') -gt 0 ]
+    if [ $(wc -l $f | awk '{print $1}') -lt 0 ]
     then
         DOWNS[$mac]=$name
     fi