去重复空行 awk去除重复行很方便,但对于去除重复空行,使用cat更简单 root@royoy-jp:~# cat -A a 1$ $ $ 2$ $ $ 5$ root@royoy-jp:~# cat -A -s a 1$ $ 2$ $ 5$ Tags: shell去重, 去重 You Might Also Like websocket优缺点 January 13, 2016 bm检测打开关闭cdn July 17, 2019 find清空文件 March 19, 2015