Identifiers provided by the licenses package (/usr/share/licenses/spdx)
MIT
MIT License
A permissive license allowing users to use, copy, modify, merge, publish, distribute, and sublicense the software with few restrictions.
It only requires that the original copyright notice and license be included in any distributed copies or substantial portions of the software.
GPL-2.0-only
GNU General Public License, version 2, only.
A copyleft license that requires derivative works to also be open source and distributed under the same GPL license.
GPL-3.0-only
GNU General Public License, version 3, only
Addresses some loopholes in v2 regarding software patents and digital rights management (DRM).
LGPL-2.1-only
GNU Lesser General Public License, version 2.1, only
LGPL-3.0-only
GNU Lesser General Public License, version 3, only
Apache-2.0
Apache License, version 2.0
A permissive license that allows users to freely use, modify, and distribute software, but it also includes an explicit grant of patent rights to contributors.
Users must provide proper attribution, and if the software is modified, they must state any changes made.
A family of permissive licenses similar to the MIT License.
The 2-Clause BSD is simple and permissive, requiring only attribution.
BSD-3-Clause
BSD 3-Clause "New" or "Revised" License
The 3-Clause BSD adds a clause to prevent others from using the names of the project contributors for endorsement.
MPL-2.0
Mozilla Public License 2.0
A weak copyleft license that allows users to combine MPL-licensed code with proprietary code, but modifications to the MPL-covered code itself must remain open-source.
EPL-2.0
Eclipse Public License 2.0
A weak copyleft license that is commonly used for software projects from the Eclipse Foundation.
Users can use, modify, and distribute code, but any modified versions must be made available under the EPL.
CC0-1.0
Creative Commons Zero v1.0 Universal (Public Domain Dedication)
A public domain dedication license that allows software to be freely used, modified, and distributed without any restriction.