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Top Forums Shell Programming and Scripting Delete rows based on line numbers in a file Post 302389621 by Muthuraj K on Monday 25th of January 2010 11:08:38 AM
Old 01-25-2010
This is how I have I have the code in my c program

Code:
strcpy(s, "sed '1,'\\\"`wc -l < $tmp/AA `\\\"'d' /tmp/BB > /tmp/CC");
system(s);

The expression doesnt get me any value. When I have the code without the expression as mentioned below, it works.

Code:
strcpy(s, "sed '1,3d' /tmp/AA > /tmp/CC");
system(s);

Is there any alternate way to do this in the unix
 

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INGRES_NUM_ROWS(3)							 1							INGRES_NUM_ROWS(3)

ingres_num_rows - Get the number of rows affected or returned by a query

SYNOPSIS
int ingres_num_rows (resource $result) DESCRIPTION
This function primarily is meant to get the number of rows modified in the database. However, it can be used to retrieve the number of rows to fetch for a SELECT statement. Note If scrollable cursors are disabled and this function is called before using ingres_fetch_array(3), ingres_fetch_object(3), or ingres_fetch_row(3), the server will delete the result's data and the script will be unable to get them. Instead, you should retrieve the result's data using one of these fetch functions in a loop until it returns FALSE, indicating that no more results are available. PARAMETERS
o $result - The result identifier for a query RETURN VALUES
For delete, insert, or update queries, ingres_num_rows(3) returns the number of rows affected by the query. For other queries, ingres_num_rows(3) returns the number of rows in the query's result. SEE ALSO
ingres_query(3), ingres_fetch_array(3), ingres_fetch_assoc(3), ingres_fetch_object(3), ingres_fetch_row(3). PHP Documentation Group INGRES_NUM_ROWS(3)
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