I have MacOs Big Sur and It Doesn't work for me.

[beemybold]

Last login: Fri May 21 04:41:26 on ttys000 bemy-bold@MacBook-Pro-de-Bernado ~ % qlmanage -p -d1 /Users/bemy-bold/Downloads/[\ OxTorrent.com\ ]\ Vis\ A\ Vis\ S01\ FRENCH\ HDTV\ XviD-EXTREME/Vis.A.Vis.S01E01.FRENCH.HDTV.XviD-EXTREME.avi qlmanage: illegal option for p -- Usage: qlmanage [OPTIONS] path... -h Display this help -r Force reloading Generators list -r cache Reset thumbnail disk cache -m [name ...] Display statistics about quicklookd. Stats names:

• plugins Show the generators list
• server Show quicklookd life information
• memory Show quicklookd memory consumption
• burst Show statistics about the last burst
• threads Show concurrent accesses stats
• other Show other information about quicklookd -p Compute previews of the documents -t Compute thumbnails of the documents -x Use quicklookd (remote computation) -i Compute thumbnail in icon mode -s size Size for the thumbnail -f factor Scale factor for the thumbnail -F factor Scale factor for the thumbnail, draw downscaled and compare to 1x -z Display generation performance info (don't display thumbnails) -o dir Output result in dir (don't display thumbnails or previews) -c contentType Force the content type used for the documents -g generator Force the generator to use

bemy-bold@MacBook-Pro-de-Bernado ~ %

[ghost]

Last login: Fri May 6 18:07:42 on ttys000 jkgreen@JKs-MacBook-Pro-New ~ % qlmanage /Volumes/HD8/VISUALS/VISUALS\ HITNRUN/NEW_RANDOM_HAP -t Testing Quick Look thumbnails with files: /Volumes/HD8/VISUALS/VISUALS HITNRUN/NEW_RANDOM_HAP 2022-05-09 11:09:40.121 qlmanage[16470:796354] *** CFMessagePort: bootstrap_register(): failed 1100 (0x44c) 'Permission denied', port = 0x6b03, name = 'com.apple.tsm.portname' See /usr/include/servers/bootstrap_defs.h for the error codes.

[Marginal]

Fixed in Release 1.96