host=$(echo $(hostname) | sed -e 's/\([^.]*\)\..*/\1/')
-bkupname=osgrid_bkup_${host}_$(date_stringer).mysql_bkup
-mysqldump -u griduser -p$(cat $HOME/.secrets/opensim_db_password.txt) opengrid > $bkupname
+bkupname="osgrid_bkup_${host}_$(date_stringer).mysql_bkup"
+mysqldump -u griduser -p$(cat $HOME/.secrets/opensim_db_password.txt) opengrid > "$bkupname"
# note that the above assumes the database is called "opensim". it might be
# called opengrid instead, based on the setup procedure that was followed.
# likewise the user might be someone other than "griduser".
-gzip $bkupname
+gzip "$bkupname"