use cp and rm instead of mv

uberspace-backup.sh

@@ -144,7 +144,8 @@ while read -r line; do
 
     # Push encrypted backup to final backup destination
     logecho "${RHOST}: Moving $(basename "${DEST}") to ${DEST_FINAL}"
-    mv "${DEST}".tar.gpg "${DEST_FINAL}/"
+    cp "${DEST}".tar.gpg "${DEST_FINAL}/"
+    rm "${DEST}".tar.gpg
 
     # Delete all old directories except the $MAXBAK most recent
     if [ $(ls -tp "${BACKUPDIR}"/"${RHOST}"/ | grep '/$' | wc -l | tr -d ' ') -gt $MAXBAK ]; then