Hello guys!
Can say me anybody about operatios with unix, I don't to make operations, only inside in a variable, like this
#y=4
#x=2
#let z=$y-$x
#echo $z
# 2
but I can't to make mathematical operations with decimal like this
#y=3.2
#x=1.5
#let z=$y-$x
#echo $z
# 3
this... (2 Replies)
Hello all!
I used to use expr for doing simple mathematics, but has a main advantage and a main disadvantage:
The advantage is that it can take variables for numbers
(e.g.{1}: echo "Give me first"
read lol
echo "Give other"
read lil
sum=`expr $lol + $lil`
echo "The sum of $lol and $lil =... (5 Replies)
Hi,
I haven't posted on the forums for a while now, I tried to find the most appropriate section for this post, but if this is in the wrong section please forgive me.
First, let me say I'm a sophomore in HS. I know that job wise I definitely want to do something in computers. A while ago I was... (5 Replies)
I am now a student in university in 2nd year. I am studying computer science. But I am not sure what type of jobs computer science provide. I know some of them are software programming or network management. Recently, I hear some about Web Development. I wonder if it is a part of computer science.... (1 Reply)
I am now a student in university in 2nd year. I am studying computer science. But I am not sure what type of jobs computer science provide. I know some of them are software programming or network management. Recently, I hear some about Web Development. I wonder if it is a part of computer... (3 Replies)
The UNIX and Linux Forums now has over 1000 TRUE / FALSE computer science and computer related trivia question in our database. These questions are of relatively high quality (compared to similar sites on the web) and are fun (according to feedback by users). In the first week during the... (1 Reply)
Thanks to Akshay, who helped me write the core MySQL queries, we now have two new draft leaderboards, by (1) member and by (2) country:
https://www.unix.com/trivia_stats.php
Currently milhan leads the members with a high score of 90%:
... (3 Replies)
Only a few days after I coded this new feature from scratch, we are seeing over 3000 entries in the database from members (mostly guests) playing CS trivia.
I have spend a lot of time coding this (from scratch) and testing the API. From the logs, it seems to have an API bug which appears... (31 Replies)
Just noticed that our successful computer trivia feature (stats here) has surpassed over 50,000 questions answered by users:
https://www.unix.com/trivia_stats.php
This was a coding effort worth while and I'm pleased to see so many people enjoying it in such a short time since it was released... (3 Replies)
Discussion started by: Neo
3 Replies
LEARN ABOUT DEBIAN
mail::spamassassin::sqlbasedaddrlist
Mail::SpamAssassin::SQLBasedAddrList(3pm) User Contributed Perl Documentation Mail::SpamAssassin::SQLBasedAddrList(3pm)NAME
Mail::SpamAssassin::SQLBasedAddrList - SpamAssassin SQL Based Auto Whitelist
SYNOPSIS
my $factory = Mail::SpamAssassin::SQLBasedAddrList->new()
$spamtest->set_persistent_addr_list_factory ($factory);
... call into SpamAssassin classes...
SpamAssassin will call:
my $addrlist = $factory->new_checker($spamtest);
$entry = $addrlist->get_addr_entry ($addr, $origip);
...
DESCRIPTION
A SQL based persistent address list implementation.
See "Mail::SpamAssassin::PersistentAddrList" for more information.
Uses DBI::DBD module access to your favorite database (tested with MySQL, SQLite and PostgreSQL) to store user auto-whitelists.
The default table structure looks like this: CREATE TABLE awl (
username varchar(100) NOT NULL default '',
email varchar(255) NOT NULL default '',
ip varchar(16) NOT NULL default '',
count int(11) NOT NULL default '0',
totscore float NOT NULL default '0',
signedby varchar(255) NOT NULL default '',
PRIMARY KEY (username,email,signedby,ip) ) TYPE=MyISAM;
Your table definition may change depending on which database driver you choose. There is a config option to override the table name.
This module introduces several new config variables:
user_awl_dsn
user_awl_sql_username
user_awl_sql_password
user_awl_sql_table
user_awl_sql_override_username
see "Mail::SpamAssassin::Conf" for more information.
new
public class (Mail::SpamAssassin::SQLBasedAddrList) new ()
Description: This method creates a new instance of the SQLBasedAddrList factory and calls the parent's (PersistentAddrList) new method.
new_checker
public instance (Mail::SpamAssassin::SQLBasedAddrList) new_checker (\% $main)
Description: This method is called to setup a new checker interface and return a blessed copy of itself. Here is where we setup the SQL
database connection based on the config values.
get_addr_entry
public instance (\%) get_addr_entry (String $addr, String $signedby)
Description: This method takes a given $addr and splits it between the email address component and the ip component and performs a lookup
in the database. If nothing is found in the database then a blank entry hash is created and returned, otherwise an entry containing the
found information is returned. If a with_awl_signer configuration option is enabled only addresses signed by the given signing identity
are taken into account, or, if $signedby is undefined (or empty) only unsigned entries are considered.
A key, "exists_p", is set to 1 if an entry already exists in the database, otherwise it is set to 0.
add_score
public instance (\%) add_score (\% $entry, Integer $score)
Description: This method adds a given $score to a given $entry. If the entry was marked as not existing in the database then an entry will
be inserted, otherwise a simple update will be performed.
NOTE: This code uses a self referential SQL call (ie set foo = foo + 1) which is supported by most modern database backends, but not
everything calling itself a SQL database.
remove_entry
public instance () remove_entry (\% $entry)
Description: This method removes a given $entry from the database. If the ip portion of the entry address is equal to "none" then remove
any perl-IP entries for this address as well.
finish
public instance () finish ()
Description: This method provides the necessary cleanup for the address list.
_unpack_addr
private instance (String, String) _unpack_addr(string $addr)
Description: This method splits an autowhitelist address into it's two components, email and ip address.
perl v5.14.2 2011-06-06 Mail::SpamAssassin::SQLBasedAddrList(3pm)