Instruction Manual

GNU

GNU general public license

Version 2, June 1991

MA 02111-1307 USA

Everyone is permitted to copy and distribute verbatim copies of this license document, but changing

it is not allowed.

TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION

This License applies to any program or other work which contains a notice placed by the copyright

holder saying it may be distributed under the terms of this General Public License. The "Program",

below, refers to any such program or work, and a "work based on the Program" means either the

Program or any derivative work under copyright law: that is to say, a work containing the Program

or a portion of it, either verbatim or with modifications and/or translated into another language.

(Hereinafter, translation is included without limitation in the term "modification".) Each licensee is

addressed as "you". Activities other than copying, distribution and modification are not covered

by this License; they are outside its scope. The act of running the Program is not restricted, and the

output from the Program is covered only if its contents constitute a work based on the Program

(independent of having been made by running the Program). Whether that is true depends on what

the Program does.

1. You may copy and distribute verbatim copies of the Program's source code as you receive it,

in any medium, provided that you conspicuously and appropriately publish on each copy an

appropriate copyright notice and disclaimer of warranty; keep intact all the notices that refer

to this License and to the absence of any warranty; and give any other recipients of the Program

a copy of this License along with the Program.You may charge a fee for the physical act of

transferring a copy, and you may at your option offer warranty protection in exchange for a

fee.

2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions

and the following disclaimer in the documentation and/or other materials provided with the

distribution.

3. You may modify your copy or copies of the Program or any portion of it, thus forming a work

based on the Program, and copy and distribute such modifications or work under the terms

of Section 1 above, provided that you also meet all of these conditions:

a. You must cause the modified files to carry prominent notices stating that you changed the

files and the date of any change.

b. You must cause any work that you distribute or publish, that in whole or in part contains

or is derived from the Program or any part thereof, to be licensed as a whole at no charge

to all third parties under the terms of this License.

c. If the modified program normally reads commands interactively when run, you must cause

it, when started running for such interactive use in the most ordinary way, to print or

display an announcement including an appropriate copyright notice and a notice that

there is no warranty (or else, saying that you provide a warranty) and that users may

redistribute the program under these conditions, and telling the user how to view a copy

Product overview