linux怎么去重统计

$ sort test.txt | uniq -c | sort -rn

4 Hello World.

2 The Iphone of Apple company.

2 Apple and Nokia.

1 My name is Friendfish.

$ sort test.txt | uniq -c | sort -rn | cut -c 9-

Hello World.

The Iphone of Apple company.

Apple and Nokia.

My name is Friendfish.

I wanna buy an Apple device.