Keep running command until output differs from previous run in Bash

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Music by Eric Matyas
https://www.soundimage.org
Track title: Puzzle Game 5 Looping

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Chapters
00:00 Question
00:50 Accepted answer (Score 57)
01:16 Answer 2 (Score 8)
02:32 Answer 3 (Score 6)
03:31 Thank you

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Full question
https://superuser.com/questions/1602243/...

Accepted answer links:
[man 1 watch]: https://man7.org/linux/man-pages/man1/wa...

Answer 3 links:
[another answer]: https://superuser.com/a/1602250/600133

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Tags
#bash

#avk47