add term_backup script

backupscripts/term_backup.sh

@@ -0,0 +1,7 @@
+#!/bin/sh
+set -euo pipefail
+
+FILENAME="plexdb_15min_$(date -u +%FT%T).sqlite"
+sqlite3 /config/Library/Application\ Support/Plex\ Media\ Server/Plug-in\ Support/Databases/com.plexapp.plugins.library.db ".backup /mnt/media/plexsync/$FILENAME"
+
+ls -tp /mnt/media/plexsync/plexdb_15min* | tail -n +5 | xargs -I {} rm -- {}