Copy Files

cp

cp source dest

cp -r source/* dest/

cpio

cpio source dest

sudo cpio -iR USER:GROUP -F app.tar.gz

rsync

Geeksforgeeks documentaion.

rsync source dest

rsync --ignore-existing

rsync -avzh -e ssh --progress --chown=USER:GROUP /foo user@host:/tmp/

rsync --ignore-existing -avzh -e ssh --progress /foo user@host:/tmp/ >> log.txt 2>&1