Prerequisite: The phone has root privileges, install RE file manager
1. adb shell execute the ls -l command to view the directory permissions
drw-rw-rw- root root 2017-05-25 08:55 local
2. su execute chmod 777 local
3. Execute the ls -l command to view the directory permissions
drwxrwxrwx root root 2017-05-25 08:55 local
4、exit
5. Execute adb push successfully
D:\Android\sdk\platform-tools>adb push d:/tcpdump /data/local/tcpdump
[100%] /data/local/tcpdump
Through the RE file manager, you can see that the tcpdump copy is successful