This helps you download and uploads files.
Create your ssh connetion with a master socket
proxychains -f proxychains.conf ssh root@10.0.20.1 -oStrictHostKeyChecking=no -oUserKnownHostsFile=/dev/null -MS /tmp/ssh -vv -i priv.key
Upload -
scp -vvv -o "ControlPath=/tmp/ssh" source @:destination
scp -vvv -o "ControlPath=/tmp/ssh" linpeas.sh @:/tmp/1.sh
Download -
scp -vvv -o "ControlPath=/tmp/ssh" @:source destination
scp -vvv -o "ControlPath=/tmp/ssh" @:/tmp/1.sh linpeas.sh