mkdir -p "$SAR_DIR"
cp "$SYSSTAT_PATH/"* "$_"
# convert sar data to ascii format
-while IFS="" read -r sarfilenum
-do
+while IFS="" read -r sarfilenum; do
[ -f "$sarfilenum" ] && LC_TIME=POSIX sar -A -f "$sarfilenum" > "$SAR_DIR/sar${sarfilenum//[!0-9]/}"
done < <(find "$SYSSTAT_PATH" -name "sa[0-9]*" || true)