I'm trying to execute a ssh command executing a bash command on a remote host. My problem is that I want to pipe the result of another command inside of the execution.
ssh -i ~/keys/pem_key.pem [email protected] "sudo docker logs $(docker ps | grep 'test' | awk '{print$1}')"
The part of the command:
$(docker ps | grep 'test' | awk '{print$1}')
is not executed inside of execution.
Any way how this can be achieved?
Although it is possible to get a command that needs complicated quoting passed through ssh argument(s) to the remote, it is often simpler to supply it as input instead:
ssh -i ~/keys/pem_key.pem [email protected] <<'EOF'
sudo docker logs $(docker ps | grep 'test' | awk '{print$1}')
EOF
Note the here-doc delimiter 'EOF' is quoted; this causes the input to be passed without any change to the remote, which executes it. It can actually be any string that isn't in the input; EOF is just a customary and easy-to-type value. And you can use <<\EOF or <<"EOF" instead if you prefer.
Also note this particular case could be simplified to:
ssh -i ~/keys/pem_key.pem [email protected] <<'EOF'
sudo docker logs $(docker ps | awk '/test/{print$1}')
EOF
The solution is the following:
ssh -i ~/keys/pem_key.pem [email protected] "sudo docker logs \$(docker ps | grep 'test' | awk '{print\$1}')"
