/usr/local/bin/docker-machine :line 1:Not: commande introuvable

Hello,

I’m facing issue with docker-machine installation on Ubuntu 16.
I followed this instructions to install docker machine:
base=https://github.com/docker/machine/releases/download/v0.14.0 &&
curl -L $base/docker-machine-$(uname -s)-$(uname -m) >/tmp/docker-machine &&
sudo install /tmp/docker-machine /usr/local/bin/docker-machine

While executing command docker-machine version, I get this error:
/usr/local/bin/docker-machine :line 1:Not: commande introuvable

When I execute command “which docker-machine”, the result is “/usr/local/bin/docker-machine”.

Can someone help please?
Thanks