touch test.txt
gcloud compute --project "relax-1143" copy-files test.txt relax:~ --zone "europe-west1-c"
# Try a directory
mkdir testdir
cp test.txt testdir
gcloud compute --project "relax-1143" copy-files testdir relax:~ --zone "europe-west1-c"
# Back again
cd testdir
gcloud compute --project "relax-1143" copy-files relax:~/testdir . --zone "europe-west1-c"
</source>