I have a form which is sent to a script for parsing in cgi.pm. If either the textbox field or password field is left blank I want to redirect back to the form. The following code gives a internal service error 500 Bad header=Use of uninitialized value in : suid when a blank line is sent to the script from the form. 
my $p = new CGI;
my $name= $p->param('name');
my $password=$p->param('password');
my $st=$p->param('state');

$name =~ s/([;<>\*\|`\$!#\(\)\[\]\{\}:'"]@)/\\$1/g;
$name =~tr/\n//d;
$password =~ s/([;<>\*\|`\$!#\(\)\[\]\{\}:'"]@)/\\$1/g;
$password=~tr/\n//d;
if (( $name ne " ")&& ($password ne " ")&& ($st eq "true"))
{
do some stuff
}
else{
redirect back to form
}

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thank you john larson

In reply to blank value from text box by jwlarson3rd

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