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
test::database::handle
Test::Database::Handle(3pm) User Contributed Perl Documentation Test::Database::Handle(3pm)NAME
Test::Database::Handle - A class for Test::Database handles
SYNOPSIS
use Test::Database;
my $handle = Test::Database->handle(@requests);
my $dbh = $handle->dbh();
DESCRIPTION
"Test::Database::Handle" is a very simple class for encapsulating the information about a test database handle.
"Test::Database::Handle" objects are used within a test script to obtain the necessary information about a test database handle. Handles
are obtained through the "Test::Database->handles()" or "Test::Database->handle()" methods.
METHODS
"Test::Database::Handle" provides the following methods:
new( %args )
Return a new "Test::Database::Handle" with the given parameters ("dsn", "username", "password").
The only mandatory argument is "dsn".
The following accessors are available.
dsn()
Return the Data Source Name.
username()
Return the connection username.
password()
Return the connection password.
connection_info()
Return the connection information triplet ("dsn", "username", "password").
dbh( [ $attr ] )
Return the DBI database handle obtained when connecting with the connection triplet returned by "connection_info()".
The optional parameter $attr is a reference to a hash of connection attributes, passed directly to DBI's "connect()" method.
name()
Return the database name attached to the handle.
dbd()
Return the DBI driver name, as computed from the "dsn".
driver()
Return the "Test::Database::Driver" object attached to the handle.
AUTHOR
Philippe Bruhat (BooK), "<book@cpan.org>"
COPYRIGHT
Copyright 2008-2010 Philippe Bruhat (BooK), all rights reserved.
LICENSE
This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
perl v5.10.1 2010-11-27 Test::Database::Handle(3pm)