linux - write commands from one terminal to another

Question

I need to write commands from one terminal to another terminal.

I tried these:

echo -e \"ls\\n\" > /proc/pid/fd/0
echo -e \"ls\\n\" > /dev/pts/         


        

Answer 1

open 2 terminals then type ttd on the terminal which you want to write on ttd will show you the address of the terminal move to the another terminal and type cat > (address of the 2nd terminal) and hit enter