Maybe, try to start over again
nah, youâre almost there
youâre going to have to type the full path to docker-compose for now until we add that to your path that is searched for executables
so once you get the output from the which docker-compose and you move into the testopenemr directory
/usr/bin/docker-compose up -d
whats is the command to testopenemr
cd testopenemr
means change directory to testopenemr (where you downloaded the docker-compose.yml file)
erik@nerik-2060:~$ cd testopenemr
nerik@nerik-2060:~/testopenemr$
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now the above please
nerik@nerik-2060:~/testopenemr$ which docker-compose
/usr/bin/docker-compose
nerik@nerik-2060:~/testopenemr$
great, the above should work then
And whats the next step
the command above,make sure you type the full pathname
/usr/bin/docker-compose up -d
nerik@nerik-2060:~/testopenemr$ /usr/bin/docker-compose up -d
/usr/bin/docker-compose: line 1: Not: command not found
maybe docker isnât running yetâŚ
try
ps aux | grep docker
nerik@nerik-2060:~/testopenemr$ ps aux | grep docker
nerik 1856 0.0 0.0 5300 824 pts/0 S+ 17:39 0:00 grep --color=auto docker
nerik@nerik-2060:~/testopenemr$
try
sudo service docker start
then you can use the up arrow to get back to your
docker-compose up -d command and run it for real this time 
nerik@nerik-2060:~/testopenemr$ sudo service docker start
[sudo] password for nerik:
Job for docker.service failed because the control process exited with error code.
try
sudo dockerd --debug
nerik@nerik-2060:~/testopenemr$ sudo dockerd --debug
sudo: dockerd: command not found
what about
docker --version
nerik@nerik-2060:~/testopenemr$ docker --version
Command âdockerâ not found, but can be installed with:
sudo apt install docker.io
nice, go ahead and install it
gotta run but found this nice guide if that doesnât do the trick
good luck 
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