lỗi khi thực hiện cho xin hướng dẫn

[linhbg1998]

/Users/linh/Desktop/SSH-Ramdisk-Tool-Activation-IOS-main/Debug Demo: line 2: import: command not found
/Users/linh/Desktop/SSH-Ramdisk-Tool-Activation-IOS-main/Debug Demo: line 4: syntax error near unexpected token (' /Users/linh/Desktop/SSH-Ramdisk-Tool-Activation-IOS-main/Debug Demo: line 4: fileprivate func emptyData(withSize: Int) -> Data {'