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$ etcdctl snapshot save <path>/<snapshot> --endpoints=<endpoint>:<port>
# Instead of <endpoint> you can substitute a hostname or an IP
$ etcdctl snapshot save snapshot.db --endpoints=etcd1:2379
$ etcdctl snapshot save snapshot.db --endpoints=192.168.100.88:2379
# View that the snapshot was successful
$ etcdctl snapshot status snapshot.db --write-out=table
+----------+----------+------------+------------+
|   HASH   | REVISION | TOTAL KEYS | TOTAL SIZE |
+----------+----------+------------+------------+
| b89543b8 | 40881777 |      54340 |     106 MB |
+----------+----------+------------+------------+

# The destination directory must be empty and obviously have write permissions
$ etcdctl [--data-dir <data_dir>] snapshot restore <path>/<snapshot>
$ etcdctl --data-dir /tmp/snap_dir snapshot restore snapshot.db
# Paste the snapshot into the path where the etcd node data are stored
$ cp -r /tmp/snap_dir/member /var/lib/etcd/