Re:After 5 Years there's a new 7zip non-beta release
by jakobdabo on Thursday November 26, 2015 @05:00PM
(#10634932)
There is this par2cmdline[1] tool which is (as the name suggests) a console program "for creating and using PAR2[2] files to detect damage in data files and repair them if necessary". GPar2[3] (alpha) is a simple GTK+ GUI for it.
[1] - https://github.com/Parchive/par2cmdline
[2] - https://en.wikipedia.org/wiki/Parchive
[3] - https://github.com/Parchive/gpar2