ssh-add $HOME/.ssh/google_compute_engine
ssh-add -l
</source>
=== Copy files ===
See: https://cloud.google.com/sdk/gcloud/reference/compute/copy-files
<source lang="text">
gcloud compute copy-files [[USER@]INSTANCE:]SRC [[[USER@]INSTANCE:]SRC …] [[USER@]INSTANCE:]DEST [--dry-run] [--plain] [--ssh-key-file SSH_KEY_FILE] [--zone ZONE] [GLOBAL-FLAG …]
gcloud compute copy-files ~/LOCAL-FILE-1 example-instance:~/REMOTE-DIR --zone us-central1-a
</source>
The ssh command was
<source lang="text">
gcloud compute --project "relax-1143" ssh --zone "europe-west1-c" "relax"
</source>
We make a test file and copy it
<source lang="text">
touch test.txt
gcloud compute --project "relax-1143" copy-files test.txt relax:~ --zone "europe-west1-c"
</source>