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--- retain_dhcp_lease_info_after_a_reboot [2023/08/09 15:41] – [Method 1: Store the lease database on permanent storage] -condense hogwild
+++ retain_dhcp_lease_info_after_a_reboot [2023/08/15 18:32] (current) – [Method 2: Copying the lease database to permanent storage at halt time] petervdm
@@ Line 28: / Line 28: @@
 <code ->
 [ -f /mnt/usb/dnsmasq.leases ] && {
- sort -b -k 2 -u -z /tmp/var/lib/misc/dnsmasq.leases > /tmp/dnsmasq.tmp1
+sort -b -k 2 -u -z /tmp/var/lib/misc/dnsmasq.leases > /tmp/dnsmasq.tmp1
- sort -b -k 2 -u -z /mnt/usb/dnsmasq.leases > /tmp/dnsmasq.tmp2
+sort -b -k 2 -u -z /mnt/usb/dnsmasq.leases > /tmp/dnsmasq.tmp2
- diff -a /tm
+diff -a /tmp/dnsmasq.tmp1 /tmp/dnsmasq.tmp2 | grep -E '^>' | sed 's/^>\ //' >> /tmp/var/lib/misc/dnsmasq.leases
- kill -HUP `ps | grep
+kill -HUP `ps | grep -E [d]nsmasq | awk '{ print $1 }'`
- rm /tmp/dnsmasq.tmp1
+rm /tmp/dnsmasq.tmp1
- rm /tmp/dnsmasq.tmp2
+rm /tmp/dnsmasq.tmp2
+rm -f /mnt/usb/dnsmasq.leases
 }
 </code>

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