讓 Finder 看不見某些目錄

必須先安裝 Xcode. 先直接印 SetFile 指令的說明檔

# /Developer/Tools/SetFile
Usage: SetFile [option...] file...
    -a attributes     # attributes (lowercase = 0, uppercase = 1)*
    -c creator        # file creator
    -d date           # creation date (mm/dd/[yy]yy [hh:mm[:ss] [AM | PM]])*
    -m date           # modification date (mm/dd/[yy]yy [hh:mm[:ss] [AM | PM]])*
        -P                                # perform action on symlink instead of following it
    -t type           # file type

    Note: The following attributes may be used with the -a option:
        A   Alias file
        B   Bundle
        C   Custom icon*
        D   Desktop*
        E   Hidden extension*
        I   Inited*
        M   Shared (can run multiple times)
        N   No INIT resources
        L   Locked
        S   System (name locked)
        T   Stationery
        V   Invisible*
        Z   Busy*

    Note: Items marked with an asterisk (*) are allowed with folders
    Note: Period (.) represents the current date and time.
    Note: [yy]yy < 100 assumes 21st century, e.g. 20yy

假設我不想在 Finder 看到硬碟的 /opt 目錄.
我就使用下列命令即可 :

# /Developer/Tools/SetFile -a V /opt 

另外一個方式從 hiraku 學習到另外一個命令.

# chflags hidden /opt