02-02-2006
Use the following if
if [ -f file_name ]
then
# File Exists
else
# File does not exist
fi
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LEARN ABOUT SUSE
mail::spf::mech::exists
Mail::SPF::Mech::Exists(3) User Contributed Perl Documentation Mail::SPF::Mech::Exists(3)
NAME
Mail::SPF::Mech::Exists - SPF record "exists" mechanism class
DESCRIPTION
An object of class Mail::SPF::Mech::Exists represents an SPF record mechanism of type "exists".
Constructors
The following constructors are provided:
new(%options): returns Mail::SPF::Mech::Exists
Creates a new SPF record "exists" mechanism object.
%options is a list of key/value pairs representing any of the following options:
qualifier
domain_spec
See "new" in Mail::SPF::Mech.
new_from_string($text, %options): returns Mail::SPF::Mech::Exists; throws Mail::SPF::ENothingToParse, Mail::SPF::EInvalidMech
Creates a new SPF record "exists" mechanism object by parsing the string and any options given.
Class methods
The following class methods are provided:
default_qualifier
qualifier_pattern
See "Class methods" in Mail::SPF::Mech.
name: returns string
Returns 'exists'.
name_pattern: returns Regexp
Returns a regular expression that matches a mechanism name of 'exists'.
Instance methods
The following instance methods are provided:
text
qualifier
params
stringify
See "Instance methods" in Mail::SPF::Mech.
domain_spec: returns Mail::SPF::MacroString
Returns the "domain-spec" parameter of the mechanism.
match($server, $request): returns boolean
Checks whether a DNS "A" record exists for the mechanism's target domain name, and returns true if one does, or false otherwise. See
RFC 4408, 5.7, for details.
SEE ALSO
Mail::SPF, Mail::SPF::Record, Mail::SPF::Term, Mail::SPF::Mech
<http://www.ietf.org/rfc/rfc4408.txt>
For availability, support, and license information, see the README file included with Mail::SPF.
AUTHORS
Julian Mehnle <julian@mehnle.net>, Shevek <cpan@anarres.org>
perl v5.12.1 2010-07-05 Mail::SPF::Mech::Exists(3)