common linux command: file transfer between two remote servers

file transfer between two remote servers:

scp -r to_be_transferred_filename username@userIP:/file_of_dst_dir/

scp -r KGNN-LS-master/* huijing@10.2.56.160:/mnt/sdf/huijing/ACMMM2020/Code/KGNN-LS-master

查询某个路径中包含的所有路径

du -h --max-depth=1

杀死一个PID的进程

kill -9 {PID}