Linux 递归删除指定目录下的文件

find /opt/firsttest -name '*.wav' -type f -print -exec rm -rf {} \;

-bash-4.1# cd /opt/
-bash-4.1# cd firsttest/
-bash-4.1# ll
total 4
-rw-r--r-- 1 root root    0 Jul  8 09:19 ss.wav
drwxr-xr-x 4 root root 4096 Jul  8 09:10 ttt
-bash-4.1# cd ttt/
-bash-4.1# ll
total 8
drwxr-xr-x 2 root root 4096 Jul  8 09:10 bbb.text
drwxr-xr-x 2 root root 4096 Jul  8 09:19 yyy
-bash-4.1# cd yyy/
-bash-4.1# ll
total 0
-rw-r--r-- 1 root root 0 Jul  8 09:19 tew.wav
-bash-4.1# find /opt/firsttest -name '*.wav' -type f -print -exec rm -rf {} \;
/opt/firsttest/ttt/yyy/tew.wav
/opt/firsttest/ss.wav
-bash-4.1# cd /opt/firsttest/
-bash-4.1# ll
total 4
drwxr-xr-x 4 root root 4096 Jul  8 09:10 ttt
-bash-4.1# cd ttt/
-bash-4.1# ll
total 8
drwxr-xr-x 2 root root 4096 Jul  8 09:10 bbb.text
drwxr-xr-x 2 root root 4096 Jul  8 09:20 yyy
-bash-4.1# cd yyy/
-bash-4.1# ll
total 0
-bash-4.1#