Attach a tmux session over SSH and run a command -

this works attach session specified name or create if doesn't exist:

tmux new-session -a -s encode

but need add command run ie.

tmux new-session -a -s encode 'ls /home/user/'

you'll want take @ tmux send-keys command. man

send key or keys window. each argument key name of key (such c-a or npage ) send; if string not recognised key, sent series of characters. -l flag disables key name lookup , sends keys liter- ally. arguments sent sequentially first last. -r flag causes terminal state reset.

in case can do

tmux new-session -d -a -s encode tmux send-keys -t encode 'ls /home/users' c-m tmux attach -t encode 

c-m enter key. -d flag create session, not attach it.