Project Summary
The vi editor is one of the most common text editors on Unix. It was developed starting around 1976 by Bill Joy at UCB, who was tired of the ed editor. But since he used ed as a code base, access to the original sources has required a commercial Unix Source Code License for more than twenty years. In January 2002, Caldera was so kind to remove usage restrictions to the Ancient Unix Code by a BSD-style license (see the announcement at Slashdot) and thus vi is now finally free.
Compared to most of its many clones, the traditional vi is a rather small program (the binary size is approximately 160 kBytes on i386) just with its extremely powerful editing interface, but lacking fancy features like multiple undo, multiple screens, or syntax highlighting.
In a Nutshell, VI...
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took an estimated 5 years of effort (COCOMO model)
starting with its first commit in December, 2004
ending with its most recent commit about 18 years ago
Quick Reference
BSD 3-clause "New" or "Revised" License
Permitted
Commercial Use
Modify
Distribute
Place Warranty
Forbidden
Hold Liable
Use Trademarks
Required
Include Copyright
Include License
These details are provided for information only. No information here is legal advice and should not be used as such.
Project Security
Vulnerabilities per Version ( last 10 releases )
There are no reported vulnerabilities
Project Vulnerability Report
Security Confidence Index
Vulnerability Exposure Index
Did You Know...
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65% of companies leverage OSS to speed application development in 2016
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use of OSS increased in 65% of companies in 2016
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30 Day SummaryApr 5 2025 — May 5 2025
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12 Month SummaryMay 5 2024 — May 5 2025
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