lttng destroy $SESSION_NAME >/dev/null
echo -n "Destroy $HOME/lttng-traces/$HOSTNAME/${SESSION_NAME}* (Y/n) ? "
read a
-if test $a = 'y' -o $a = 'Y'; then
+if test -z "$a" -o "$a" = 'y' -o "$a" = 'Y'; then
rm -rf $HOME/lttng-traces/$HOSTNAME/${SESSION_NAME}*
fi