Definitions of GPL

According to AbbreviationFinder.org, GPL is short for General Public License. Any activity other than copying, distribution or modification is not covered by this License, it is outside its scope. The act of running the Program is not restricted, and the results of the Program are covered only if its contents constitute a work based on the Program, regardless of whether it was produced by running the program. Whether this is true depends on what the program does.

1. You may copy and distribute verbatim copies of the Program’s source code, as you have received it, in any medium, provided that you adequately and conspicuously post an appropriate copyright notice and warranty disclaimer on each copy, keep all advertisements intact. that refer to this License and the absence of warranty, and provide any other recipients of the program with a copy of this License along with the Program. You may charge a price for the physical act of transferring a copy, and you may, at your free will, offer collateral for a fee.
2. 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 that modification or work under the terms of section 1, above, provided that you also meet the following conditions:
   1. You must make modified files carry prominent notices indicating that you have changed them and the date of any changes.
   2. 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 of it be licensed as a whole, without charge, to all third parties and under the terms of this License..
   3. If the modified program normally reads commands interactively when it is executed, you should have, when it begins its execution for that interactive use in the most usual way, display or write a message that includes a copyright notice and an announcement that none is offered. guarantee (or on the contrary that guarantee is offered) and that users can redistribute the program under these conditions, and indicating to the user how to view a copy of this license.These requirements apply to modified work as a whole. If identifiable parts of that work are not derivatives of the Program, and can reasonably be considered independent and separate works by themselves, then this License and its terms do not apply to those parts when distributed as separate works. But when you distribute those same sections as parts of a whole that is a work based on the Program, the distribution of the whole must be according to the terms of this license, whose permissions for other licensees extend to the whole whole, and therefore to all and each of its parts, regardless of who wrote it.Therefore, it is not the intention of this section to claim rights or challenge your rights to works written entirely by yourself. The intent is to exercise the right to control the distribution of derivative or collective works based on the Program.Furthermore, simply bringing together a non-Program-based work with the Program (or a Program-based work) on a storage volume or on a distribution medium does not bring such work within the scope covered by this. License.
3. You may copy and distribute the Program (or a work based on it, as specified in section 2, as object code or in executable form under the terms of sections 1 and 2, provided that you also meet one of the following conditions:
   1. Accompany it with the corresponding complete source code, in electronic format, which must be distributed as specified in sections 1 and 2 of this License in a medium commonly used for the exchange of programs, or
   2. Accompany it with a written offer, valid for at least three years, to provide any third party with a complete copy in electronic format of the corresponding source code, at a cost no greater than that of physically distributing the source, which will be distributed under the conditions described in sections 1 and 2 above, in a medium commonly used for the exchange of programs, or
   3. Accompany it with the information you received offering to distribute the corresponding source code. (This option is allowed only for non-commercial distribution and only if you received the program as object code or in executable format with such offer, in accordance with section b above).Source code of a work means the preferred form of the work when modifications are made to it. For an executable work, complete source code means all the source code for all the modules it contains, plus any associated interface definition files, plus the scripts used to control the compilation and installation of the executable. As a special exception, the distributed source code does not need to include anything that is normally distributed (either as a source or in binary form) with the main components (compiler, kernel, and the like) of the operating system on which the executable runs, unless the component itself accompanies the executable.If the distribution of the executable or the object code is made by offering access to copy it from a certain place, then the offer of access to copy the source code from the same place is considered as distribution of the source code, even if third parties are not forced to copy the source along with the object code.
4. You may not copy, modify, sublicense, or distribute the Program except as expressly provided by this License. Any attempt to copy, modify, sublicense, or otherwise distribute the Program is invalid, and will automatically terminate your rights under this License. In any event, the parties that have received copies or rights from you under this License will not cease their rights as long as those parties continue to perform it.
5. You are not required to accept this license as you have not signed it. However, no one else gives you permission to modify or distribute the Program or its derivative works. These actions are prohibited by law if you do not accept this License. Therefore, if you modify or distribute the Program (or any work based on the Program), you are indicating that you accept this License to do so, and all its terms and conditions for copying, distributing or modifying the Program or works based on it.
6. Each time you redistribute the Program (or any work based on the Program), the recipient automatically receives a license from the original licensee to copy, distribute, or modify the Program, subject to these terms and conditions. You cannot impose any further restriction on the recipient on the exercise of the rights guaranteed here. You are not responsible for enforcing this license by third parties.
7. If as a result of a court decision or an allegation of patent infringement or for any other reason (not limited to matters related to patents) conditions are imposed (either by court order, by agreement or for any other cause) that contradict the conditions of this License, it does not exempt you from complying with the conditions of this License. If you are unable to make distributions in a manner that simultaneously satisfies your obligations under this license and any other relevant obligations then, as a consequence, you may not distribute the Program in any way. For example, if a patent does not allow the copyright-free redistribution of the Program by everyone who receives copies directly or indirectly from you,If any portion of this section is considered invalid or impossible to comply with under any particular circumstance, the rest must be fulfilled and the entire section must be fulfilled in any other circumstance.It is not the purpose of this section to induce you to infringe any patent or other property right claims or to contest the validity of any such claim. This section has the sole purpose of protecting the integrity of the free software distribution system, which is done through public license practices. Many people have made generous contributions to the wide variety of software distributed through that system, confident that the system will be applied consistently. It will be the author / donor who decides if he wants to distribute software through any other system and a license cannot impose that choice.This section is intended to make it completely clear what is believed to be a consequence of the rest of this License.
8. If the distribution and / or use of the Program is restricted in certain countries, either by patents or by interfaces under copyright, the copyright holder who places this Program under this License may add an explicit limitation of geographic distribution excluding those countries, so that distribution is allowed only in or between countries not excluded in this way. In that case, this License will incorporate the limitation as if it were written into the body of this License.
9. The Free Software Foundation may publish revised and / or new versions of the General Public License from time to time. These new versions will be similar in spirit to the present version, but may be different in details to consider new problems or situations.Each version receives a version number that distinguishes it from others. If the Program specifies a version number of this License that refers to it and “any later version”, you have the option of following the terms and conditions of either that version or any later version published by the Free Software Foundation. If the Program does not specify a version number for this License, you may choose any version published by the Free Software Foundation.
10. If you want to incorporate parts of the Program into other free programs whose distribution conditions are different, write to the author for permission. If the software is copyrighted by the Free Software Foundation, write to the Free Software Foundation: sometimes we make exceptions in these cases. Our decision will be guided by the double objective of preserving the freedom of all derivatives of our free software and promoting the sharing and reuse of software in general.