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Top Forums Shell Programming and Scripting [bash] getopts not executing when called second time. Post 302396443 by Corona688 on Thursday 18th of February 2010 12:18:49 PM
Old 02-18-2010
It keeps track of what argument to read next with OPTIND, which gets set globally. Try:

Code:
#!/bin/bash
function fn_check
{
        local OPTIND
        local OPTARG
	echo; echo "in check"
	while getopts ":defhrwx" opt; do
	echo "in loop"
	case $opt in
	d)	echo "in d $2";;
	e)	echo "in e";;
	f)	echo "in f";;
	h)	echo "in h";;
	r)	echo "in r";;
	w)	echo "in w";;
	x)	echo "in x";;
	\?)	echo "in ?";;
	esac
	done
}
fn_check -edrw helloworld
fn_check -erwx helloworld

This should stop it from modifying the global OPTIND value.

You should be able to use ${OPTARG} instead of $2 -- indeed it's preferable to do that instead of hardcoding a parameter as position 2 -- and I'm not sure why that doesn't work.

Last edited by Corona688; 02-18-2010 at 01:24 PM..
 

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MSSQL_FIELD_SEEK(3)													       MSSQL_FIELD_SEEK(3)

mssql_field_seek - Seeks to the specified field offset

SYNOPSIS
bool mssql_field_seek (resource $result, int $field_offset) DESCRIPTION
Seeks to the specified field offset. If the next call to mssql_fetch_field(3) won't include a field offset, this field would be returned. PARAMETERS
o $result - The result resource that is being evaluated. This result comes from a call to mssql_query(3). o $field_offset - The field offset, starts at 0. RETURN VALUES
Returns TRUE on success or FALSE on failure. EXAMPLES
Example #1 Using mssql_field_seek(3) on the example for mssql_fetch_field(3) <?php // Connect to MSSQL and select the database mssql_connect('MANGOSQLEXPRESS', 'sa', 'phpfi'); mssql_select_db('php'); // Send a select query to MSSQL $query = mssql_query('SELECT * FROM [php].[dbo].[persons]'); // Construct table echo '<h3>Table structure for 'persons'</h3>'; echo '<table border="1">'; // Table header echo '<thead>'; echo '<tr>'; echo '<td>Field name</td>'; echo '<td>Data type</td>'; echo '<td>Max length</td>'; echo '</tr>'; echo '</thead>'; // Dump all fields echo '<tbody>'; for ($i = 0; $i < mssql_num_fields($query); ++$i) { // Fetch the field information, notice the // field_offset parameter is not set. See // the mssql_field_seek call below $field = mssql_fetch_field($query); // Print the row echo '<tr>'; echo '<td>' . $field->name . '</td>'; echo '<td>' . strtoupper($field->type) . '</td>'; echo '<td>' . $field->max_length . '</td>'; echo '</tr>'; // Move the internal seek pointer to the next // row in the result set mssql_field_seek($query, $i + 1); } echo '</tbody>'; echo '</table>'; // Free the query result mssql_free_result($query); ?> SEE ALSO
mssql_fetch_field(3). PHP Documentation Group MSSQL_FIELD_SEEK(3)
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