tmux mutiple and attach old session
--
tmux attach-session -t 0

7z
tar

tar cfv  foo.tar foo/			# tar create file verbose
tar cfvz foo.tgz foo/			# zip gunzip format
tar cfv  - foo/ | gzip > foo.tgz	# using pipe
tar cfvJ foo.txz foo/			# zip xz format (better compression)

xz -d < foo.txz | tar xvf -