Operation Manual
32
GNU GENERAL PUBLIC LICENSE
TERMSANDCONDITIONSFORCOPYING,DISTRIBUTIONANDMODIFICATION
0.ThisLicenseapplies toanyprogramorotherworkwhichcontainsa noticeplaced 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".
Activitiesotherthancopying,distributionandmodificationarenotcoveredbythisLicense;
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.YoumaycopyanddistributeverbatimcopiesoftheProgram'ssourcecodeasyoureceive
it, in any medium, provided that you conspicuously and appropriately publish on each copy
anappropriatecopyrightnoticeanddisclaimerofwarranty;keepintactallthenoticesthat
refertothisLicenseandtotheabsenceofanywarranty;andgiveanyotherrecipientsofthe
Program a copy of this License along with the Program.
Youmaychargeafeeforthephysicalactoftransferringacopy,andyoumayatyouroption
offer warranty protection in exchange for a fee.
2.YoumaymodifyyourcopyorcopiesoftheProgramoranyportionofit,thusforminga
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)Youmustcausethemodifiedfilestocarryprominentnoticesstatingthatyouchangedthe
files and the date of any change.
b)Youmustcauseanyworkthatyoudistributeorpublish,thatinwholeorinpartcontains
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 of this License. (Exception: if the
Program itself is interactive but does not normally print such an announcement, your work
based on the Program is not required to print an announcement.)
These requirements apply to the modified work as a whole. If identifiable sections of that
work are not derived from the Program, and can be reasonably considered independent and
separate works in themselves, then this License, and its terms, do not apply to those sections