more pure bash to speed up things

dabo/functions/check_buy_conditions.sh

@@ -95,7 +95,7 @@ function check_buy_conditions {
 #echo "${csv_headline},Marketperformance
 #${f_last_line}" | cut -d, -f 2-22 | perl -pe 's/([0-9].[0-9][0-9][0-9][0-9][0-9][0-9])[0-9]+/$1/g' | perl -pe 's/((?<=,)|(?<=^)),/ ,/g;' | column -t -s,
     echo "${f_echo_prefix}${f_BUY}" >${g_tmp}/open-${tmpfile}
-    BUY_PRICE=$current
+    BUY_PRICE=$f_price
     f_BUY=""
   fi