简单文本操作之去掉重复行sort 和uniq

 uniq只会去掉连续重复行
[root@localhost ~]# cat names
wei hong rao
huang jin feng
lin zhi lin
xu ru yun

wei hong rao
wei hong rao
huang jin feng
huang jin feng
[root@localhost ~]# sort -fu names

huang jin feng
lin zhi lin
wei hong rao
xu ru yun
[root@localhost ~]# uniq names
wei hong rao
huang jin feng
lin zhi lin
xu ru yun

wei hong rao
huang jin feng
[root@localhost ~]#