Free e.g software for linux

cdspeed is an application that can decrease the speed of you cdrom. Modern cdrom drives are too fast. It can take several seconds on a 60x speed cdrom drive to spin it up and read data from the drive. The result is that these drives are just a lot slower than a 8x or 24x drive. This is especially true if you are only occasionally (e.g every 5 seconds) reading a small file. This utility limits the speed, makes the drive less noisy and the access time faster. cdspeed is also very good if you prefer to listen to the musik on your mp3 CDs rather then the noise of your CD drive.
Note: recent versions of the eject command include the functionallity of cdspeed (via the -x option).
Installation instructions:
to compile type:
make
to install cdspeed to /usr/bin type:
make install
You can copy the script cdmount to /usr/bin,it will first reduce the speed and then mount the cd. See the explanations inside the cdmount script for further details.
Enhancements:
- 2004-03-31 Roberto Foglietta added the init script for Mandrake distributions

Aware is a high performance distributed event processing framework built for systems management. It comes with probes for common network services and system resources. Additionally, Aware allows the cross-correllation of many different streams of information, and includes a Web-based reporting interface.
Aware is intended to enable system administrators tune system variables, set monitoring/security alarms and build adaptive distributed systems. Aware modules may be linked into applications making them aware and able to participate in the larger managed system.
Ultimately, multiple systems will monitor themselves and others, cooperating to make decisions to optimally tune performance, proactively enhance security and compensate for faults.
The Aware software is a high performance distributed event processing framework built for systems management. It comes with probes for the common network services and system resources. Additionally, Aware allows the cross-correllation of different streams of information
Enhancements:
- This major beta release provides a new Web-based interface using a built-in websever and a Sqlite database.
- The old PHP/MySQL GUI is gone.
- Installation and configuration were simplified and the run-time footprint is now very small relative to similar systems.
- The user interface now has threshold alerts on metrics (e.g, traffic), and more reports.
- There are new handlers for mDNS, Sqlite, and BigBrother.
- Two new applications included are a small faster static Web server (xap) and multicast file copy programs (mcctx and mccrx).

Parse::RPN is a minimalist RPN parser/processor (a little like FORTH).

SYNOPSIS

use Parse::RPN;
$result=rpn(string ...);
@results=rpn(string ...);

$error=rpn_error();

string... is a list of RPN operator and value separated by a coma in scalar mode RPN return the result of the calculation (If the stack contain more then one element, you receive a warning and the top value on the stack) in array mode, you receive the content of the stack after evaluation

rpn() receive in entry a scalar of one or more elements coma separated and evaluate as an RPN (Reverse Polish Notation) command. The function split all elements and put in the stack. The operator are case sensitive. The operator are detect as is, if they are alone in the element of the stack. Extra space before or after are allowed (e.g "3,4,ADD" here ADD is an opeartor but it is not the case in "3,4,ADD 1") If element is not part of the predefined operator (dictionary), the element is push as a litteral.

If you would like to put a string which is part of the dictionary, put it between quote or double-quote (e.g "3,4,ADD" here ADD is a literal and the evaluation reurn ADD and a warning because the stack is not empty) If the string contain a coma, you need also to quote or double-quote the string. (be care to close your quoted or double-quoted string)

The evaluation follow the rule of RPN or FORTH or POSTCRIPT or pockect calcutor HP. Look on web for documentation about the use of RPN notation.

I use this module in a application where the final user need to create an maintain a configuration file with the possibility to do calculation on variable returned from application.

The idea of this module is comming from Math::RPN of Owen DeLong, owen@delong.com that I used for more then a year before some of my customer would like more ... I correct a bug (interversion of > and >=), add the STRING function, pattern search and some STACK functions.

rpn_error() return the last error from the evaluation (illegal division by 0, error from the PERL function execution...) each time that rpn() is call the rpn_error() is reinitianised.

Set::Array Perl module contains arrays as objects with lots of handy methods (including Set comparisons) and support for method chaining.

SYNOPSIS

my $sao1 = Set::Array->new(1,2,4,"hello",undef);
my $sao2 = Set::Array->new(qw(a b c a b c));
print $sao1->length; # prints 5
$sao2->unique->length->print; # prints 3

Set::Array allows you to create arrays as objects and use OO-style methods on them. Many convenient methods are provided here that appear in the FAQs, the Perl Cookbook or posts from comp.lang.perl.misc. In addition, there are Set methods with corresponding (overloaded) operators for the purpose of Set comparison, i.e. +, ==, etc.

The purpose is to provide built-in methods for operations that people are always asking how to do, and which already exist in languages like Ruby. This should (hopefully) improve code readability and/or maintainability. The other advantage to this module is method-chaining by which any number of methods may be called on a single object in a single statement.

OBJECT BEHAVIOR

The exact behavior of the methods depends largely on the calling context.
Here are the rules:

* If a method is called in void context, the object itself is modified.
* If the method called is not the last method in a chain (i.e. its called in object context), the object itself is modified by that method regardless of the final context or method call.
* If a method is called in list or scalar context, a list or list refererence is returned, respectively. The object itself is NOT modified.

Heres a quick example:

my $sao = Set::Array->new(1,2,3,2,3);
my @uniq = $sao->unique(); # Object unmodified. @uniq contains 3 values.
$sao->unique(); # Object modified, now contains 3 values

Here are the exceptions:

* Methods that report a value, such as boolean methods like exists() or other methods such as at() or as_hash(), never modify the object.
* The methods clear(), delete(), delete_at(), and splice will always modify the object. It seemed much too counterintuitive to call these methods in any context without actually deleting/clearing/substituting the items!
* The methods shift() and pop() will modify the object AND return the value that was shifted or popped from the array. Again, it seemed much too counterintuitive for something like $val = $sao->shift to return a value while leaving the objects list unchanged. If you really want the first or last value without modifying the object, you can always use the first() or last() method, respectively.
* The join() method always returns a string and is really meant for use in conjunction with the print() method.

BOOLEAN METHODS

exists(val) - Returns 1 if val exists within the array, 0 otherwise. If no value (or undef) is passed, then this method will test for the existence of undefined values within the array.
is_empty() - Returns 1 if the array is empty, 0 otherwise. Empty is defined as having a length of 0.

STANDARD METHODS

at(index) - Returns the item at the given index (or undef). A negative index may be used to count from the end of the array. If no value (or undef) is specified, it will look for the first item that is not defined.

clear() - Empties the array (i.e. length becomes 0). You may pass a 1 to this method to set each element of the array to undef rather than truly empty it.

compact() - Removes undefined elements from the array.

count(?val?) - Returns the number of instances of val within the array. If val is not specified (or is undef), the method will return the number of undefined values within the array.

delete(list) - Deletes all items within list from the array that match. This method will crash if list is not defined. If your goal is to delete undefined values from your object, use the compact() method instead.

delete_at(index, ?index?) - Deletes the item at the specified index. If a second index is specified, a range of items is deleted. You may use -1 or the string end to refer to the last element of the array.

duplicates - Returns a list of N-1 elements for each element N in the set. For example, if you have set "X X Y Y Y", this method would return a the list "X Y Y".

fill(val,?start?,?length?) - Sets the selected elements of the array (which may be the entire array) to val. The default value for start is 0. If length is not specified the entire array, however long it may be at the time of the call, will be filled. Alternatively, a quoted integer range may be used.

e.g. $sao->fill(x,3-5);

The array length/size may not be expanded with this call - it is only meant to fill in already-existing elements.

first() - Returns the first element of the array (or undef).

flatten() - Causes a one-dimensional flattening of the array, recursively. That is, for every element that is an array (or hash, or a ref to either an array or hash), extract its elements into the array.

e.g. my $sa = Set::Array->new([1,3,2],{one=>a,two=>b},x,y,z);

$sao->flatten->join(,)->print; # prints "1,3,2,one,a,two,b,x,y,z"

foreach(sub ref) - Iterates over an array, executing the subroutine for each element in the array. If you wish to modify or otherwise act directly on the contents of the array, use $_ within your sub reference.

e.g. To increment all elements in the array by one...

$sao->foreach(sub{ ++$_ });

get - Alias for the indices() method.

index(val) - Returns the index of the first element of the array object that contains val. Returns undef if no value is found.

Note that there is no dereferencing here so if youre looking for an item nested within a ref, use the flatten method first.

indices(val1,?val2?, ?val...?) - Returns an array consisting of the elements at the specified indices or undef if the element is out of range.

A range may also be used. It must be a quoted string in 0..3 format.

join(?char?) - Joins the individual elements of the list into a single string with the elements separated by the value of char. Useful in conjunction with the print() method. If no character is specified, then char defaults to a comma.

e.g. $sao->join(-)->print;

last() - Returns the last element of the array (or undef).

length() - Returns the number of elements within the array.

max() - Returns the maximum value of an array. No effort is made to check for non-numeric data.

pack(template) - Packs the contents of the array into a string (in scalar context) or a single array element (in object or void context).

pop() - Removes the last element from the array. Returns the popped element.

print(?1?) - Prints the contents of the array. If a 1 is provided as an argument, the output will automatically be terminated with a newline.

This also doubles as a contents method, if you just want to make a copy of the array, e.g. my @copy = $sao->print;

Can be called in void or list context, e.g.

$sao->print(); # or... print "Contents of array are: ", $sao->print();

push(list) - Adds list to the end of the array, where list is either a scalar value or a list. Returns an array or array reference in list or scalar context, respectively. Note that it does not return the length in scalar context. Use the length method for that.

reverse() - Reverses the order of the contents of the array.

rindex(val) - Similar to the index() method, except that it returns the index of the last val found within the array.

set(index,value) - Sets the element at index to value, replacing whatever may have already been there.

shift() - Shifts the first element of the array and returns the shifted element.

sort(?coderef?) - Sorts the contents of the array in alphabetical order, or in the order specified by the optional coderef. Use your standard $a and $b variables within your calling program, e.g:

my $sao = Set::Array->new( { name => Berger, salary => 20000 }, { name => Berger, salary => 15000 }, { name => Vera, salary => 25000 }, );
my $subref = sub{ $b->{name} cmp $a->{name} || $b->{salary} $a->{salary} };
$sao14->sort($subref)->flatten->join->print(1);

splice(?offset?,?length?,?list?) - Splice the array starting at position offset up to length elements, and replace them with list. If no list is provided, all elements are deleted. If length is omitted, everything from offset onward is removed.

Returns an array or array ref in list or scalar context, respectively. This method always modifies the object, regardless of context. If your goal was to grab a range of values without modifying the object, use the indices method instead.

unique() - Removes/returns non-unique elements from the list.

unshift(list) - Prepends a scalar or list to array. Note that this method returns an array or array reference in list or scalar context, respectively. It does not return the length of the array in scalar context. Use the length method for that.

ODDBALL METHODS

as_hash() - Returns a hash based on the current array, with each even numbered element (including 0) serving as the key, and each odd element serving as the value. This can be switched by using the key_order option and setting it to odd, in which case the even values serve as the values, and the odd elements serve as the keys. The default is even.

Of course, if you dont care about insertion order, you could just as well do something like, $sao-reverse->as_hash;>

Carp::croaks if the array contains an odd number of elements. This method does not actually modify the object itself in any way. It just returns a plain hash in list context or a hash reference in scalar context. The reference is not blessed, therefore if this method is called as part of a chain, it must be the last method called.

impose(?append/prepend?,string) - Appends or prepends the specified string to each element in the array. Specify the method by using either the keyword append or prepend. The default is append.

randomize() - Randomizes the order of the elements within the array.

rotate(direction) - Moves the last item of the list to the front and shifts all other elements one to the right, or vice-versa, depending on what you pass as the direction - ftol (first to last) or ltof (last to first). The default is ltof.

e.g. my $sao = Set::Array->new(1,2,3);

$sao->rotate(); # order is now 3,1,2

$sao->rotate(ftol); # order is back to 1,2,3

OpenDaemon (Formerly OpenXMLD) started as an open-source native XML database server, which aims at achieving the following special goals:
- Performant enough that it can eliminate all the performance problems related to XMLs nature (e.g the need to make a parse tree for each document). so it can offer XMLs extensibility in places where any other non-XML database server can be used.
- As much SQL-compliant as possible so it can replace the current non-XML servers easily and with a minimum of effort (e.g having ODBC and JDBC drivers with no SQL XML translation stuff.)
After about a year of development, it was found that its better to concentrate in the first place on the platform containing the server rather than the query parsing and data extraction functionaltiy, the decision was to do everything on its own, by creating a server platform that provides a generic and flexible model of work the same previous goals could be achieved easier and in a more open and distributed manner.
In this direction, OpenDaemon could reach the stage at which it can be a server of any protocol, and the protocol implementation can utilize a broad set of capabilities built inside the server.
Because portability is a concern, OpenDaemon contains well-defined interfaces between its modules, to allow for easy replacement of any part for portability or performance reasons. Last but not least - OpenDaemon is written with object orientation in mind in the C programming language.
OpenDaemon is an extension of the efforts formerly done in KXParse.
Enhancements:
- Generlized the engine interface so it is not XML-specific.
- Engine capability specification.
- Support for a broader range of functionality within the engine API.
- Configuration parser and API rewrite using bison and flex.
- Support for interface association to a particular port.
- Support for interface parameters and interface instances.
- Generic, more flexible storage API and associated walker.
- Multi-process multi-tasker cleanups.
- Initial support for engine association to file types using the file extension.
- Error reporting model across engines and interfaces.
- Improved and more efficient connection handling.
- Better organization for the source code tree.
- Renamed to OpenDaemon.

Cute PHP library is a small collection of classes for PHP witch purpose is to simplify functions for daily work with PHP. e.g. convertions, formating, DB session.

jsp File Browser is an easy to use and easy to install file browser java server page. This JSP program allows remote web-based file access and manipulation.
Main features:
- Create, copy, move, rename and delete files and directories
- View Files (pictures, movies, pdf, html,...)
- Edit textfiles
- Upload files to the server (Status via Upload monitor)
- Download files from the server
- Download groups of files and folders as a single zip file that is created on the fly
- Execute native commands on the server (e.g ls, tar, chmod,...)
- View entries and unpack zip, jar, war and gz files on the server
- Just one file, very easy to install (in fact, just copy it to the server)
- Customizable layout via css file
- Restrict file access via black or whitelist
It should work with any JSP1.1 compatible server(e.g. Tomcat>=3.0), I tested it on Tomcat 4.0, Resin 2.1.7 and Jetty.
Enhancements:
- A read-only version was added.
- It is now also usable as an upload-center.
- Some UI enhancements were made, like shortkeys and a better layout.
- It should also load a bit faster.