Here are some commonly used Finder shortcuts:
New Finder Window:
Command + N
New Folder:
Command + Shift + N
New Smart Folder:
Command + Option + N
Get Info:
Command + I
Find:
Command + F
Delete a desktop icon, folder, file, etc:
Command + Delete
Empty Trash:
Command + Shift + Delete
Hide an application:
Command + H
Hide other applications:
Command + Option + H
Finder Preferences:
Command + , (comma)
Connect to Server:
Command + K
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