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Top Forums Shell Programming and Scripting Help need in Deleting Characters Post 302361107 by Franklin52 on Monday 12th of October 2009 08:44:38 AM
Old 10-12-2009
Quote:
Originally Posted by rajeshorpu
Hi,

What does it mean what is n and length in the sample.

Can you be specific please.

Thanks-
Rajesh
n is a variable to store the number of bytes that has been read.

length is a builtin function to get the bytes (length) of the current line.

Beside the length you have to add 1 byte for the newline.
 

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MYSQL_FIND_ROWS 					       MySQL Database System						   MYSQL_FIND_ROWS

NAME
mysql_find_rows - extract SQL statements from files SYNOPSIS
mysql_find_rows [options] [file_name ...] DESCRIPTION
mysql_find_rows reads files containing SQL statements and extracts statements that match a given regular expression or that contain USE db_name or SET statements. The utility was written for use with update log files (as used prior to MySQL 5.0) and as such expects statements to be terminated with semicolon (;) characters. It may be useful with other files that contain SQL statements as long as statements are terminated with semicolons. Invoke mysql_find_rows like this: shell> mysql_find_rows [options] [file_name ...] Each file_name argument should be the name of file containing SQL statements. If no file names are given, mysql_find_rows reads the standard input. Examples: mysql_find_rows --regexp=problem_table --rows=20 < update.log mysql_find_rows --regexp=problem_table update-log.1 update-log.2 mysql_find_rows supports the following options: o --help, --Information Display a help message and exit. o --regexp=pattern Display queries that match the pattern. o --rows=N Quit after displaying N queries. o --skip-use-db Do not include USE db_name statements in the output. o --start_row=N Start output from this row. COPYRIGHT
Copyright 2007-2008 MySQL AB, 2008-2010 Sun Microsystems, Inc. This documentation is free software; you can redistribute it and/or modify it only under the terms of the GNU General Public License as published by the Free Software Foundation; version 2 of the License. This documentation is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with the program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or see http://www.gnu.org/licenses/. SEE ALSO
For more information, please refer to the MySQL Reference Manual, which may already be installed locally and which is also available online at http://dev.mysql.com/doc/. AUTHOR
Sun Microsystems, Inc. (http://www.mysql.com/). MySQL 5.1 04/06/2010 MYSQL_FIND_ROWS
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