[macOS General] 「このアプリケーションで開く」で重複表示があるときの修正方法

小ネタ。
ターミナルからlsregisterコマンドを実行。Finderを再起動する。

$ cd /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/LaunchServices.framework/Versions/A/Support
$ ./lsregister -kill -r -domain system -domain local -domain user
$ killall Finder

Mac OS のバージョンによってはlsregisterの場所が違うようです。

追記（2019/12/18）:

“`prettyprinted
% /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/LaunchServices.framework/Versions/A/Support/lsregister –help
lsregister: [OPTIONS] [ … ]
[ -apps [,domain]… ]
[ -libs [,domain]… ]
[ -all [,domain]… ]

Paths are searched for applications to register with the Launch Service database.
Valid domains are “system”, “local”, “network” and “user”. Domains can also
be specified using only the first letter.

-delete Delete the Launch Services database file. You must then reboot!
-kill Reset the Launch Services database before doing anything else
-seed If database isn’t seeded, scan default locations for applications and libraries to register
-lint Print information about plist errors while registering bundles
-lazy n Sleep for n seconds before registering/scanning
-r Recursive directory scan, do not recurse into packages or invisible directories
-R Recursive directory scan, descending into packages and invisible directories
-f force-update registration even if mod date is unchanged
-u unregister instead of register
-v Display progress information
-gc Garbage collect old data and compact the database
-dump [table] Display full database contents after registration
-h Display this help
“`