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Top Forums Shell Programming and Scripting Simple maths calculator loop. Post 302583056 by kshji on Monday 19th of December 2011 12:28:27 PM
Old 12-19-2011
Something like this:
Code:
echo -n "number:"
read res
PS3="select operation (ENTER=menu again, e=end):"
select f in add sub div mul
do
        [ "$REPLY" = "e" ] && break
        echo -n "number:"
        read n

        case "$f" in
                add)  (( res+=n )) ;;
                sub)  (( res-=n )) ;;
                div)  (( res/=n )) ;;
                mul)  (( res*=n )) ;;
        esac
        echo "res:$res"
done

echo "res:$res"

This User Gave Thanks to kshji For This Post:
 

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OVRIMOS_FETCH_ROW(3)													      OVRIMOS_FETCH_ROW(3)

ovrimos_fetch_row - Fetches a row from the result set

SYNOPSIS
bool ovrimos_fetch_row (int $result_id, [int $how], [int $row_number]) DESCRIPTION
Fetches a row from the result set. Column values should be retrieved with other calls. PARAMETERS
o $result_id - A result identifier, returned by ovrimos_execute(3) or ovrimos_exec(3). o $how - Determines how the rows are fetched. This can be one of the following strings (case is not significant): +---------+---------------------------------------------------+ | Option | | | | | | | Notes | | | | +---------+---------------------------------------------------+ | | | | Next | | | | | | | Forward direction from current position. This is | | | the default value. | | | | | | | | Prev | | | | | | | Backward direction from current position. | | | | | | | | First | | | | | | | Forward direction from the start. | | | | | | | | Last | | | | | | | Backward direction from the end. | | | | | | | |Absolute | | | | | | | Absolute position from the start. Requires | | | $rownumber. | | | | +---------+---------------------------------------------------+ o $rownumber - The row number, first one is 0. Only needed when $how is set to Absolute. RETURN VALUES
Returns TRUE on success or FALSE on failure. EXAMPLES
Example #1 A fetch row example <?php $conn = ovrimos_connect("remote.host", "8001", "admin", "password"); if ($conn != 0) { echo "Connection ok!"; $res=ovrimos_exec($conn, "select table_id, table_name from sys.tables"); if ($res != 0) { echo "Statement ok!"; if (ovrimos_fetch_row($res, "First")) { $table_id = ovrimos_result($res, 1); $table_name = ovrimos_result($res, 2); echo "table_id=" . $table_id . ", table_name=" . $table_name . " "; if (ovrimos_fetch_row($res, "Next")) { $table_id = ovrimos_result($res, "table_id"); $table_name = ovrimos_result($res, "table_name"); echo "table_id=" . $table_id . ", table_name=" . $table_name . " "; } else { echo "Next: error "; } } else { echo "First: error "; } ovrimos_free_result($res); } ovrimos_close($conn); } ?> This will fetch a row and print the result. SEE ALSO
ovrimos_fetch_into(3). PHP Documentation Group OVRIMOS_FETCH_ROW(3)
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