diff --git a/README.md b/README.md
index 135d430..94d067c 100644
--- a/README.md
+++ b/README.md
@@ -2,8 +2,12 @@
 
 ## Usage
 
+usage: `./main.py <docker-container-name> [<ssh-hostname>]`
+
+Example:
+
 ```bash
-(venv-310) [user@linux snoflake-stats]$ ./main.py
+(venv-310) [user@linux snoflake-stats]$ ./main.py snowflake-proxy root_at_my_server
 ```
 
 ## Example output
diff --git a/main.py b/main.py
index 2826b16..9eff0c6 100755
--- a/main.py
+++ b/main.py
@@ -2,12 +2,23 @@
 from __future__ import annotations
 from typing import List
 from datetime import datetime
+import sys
 
 import exec
 
 
 def main():
-    log: str = docker_logs(container_name='snowflake-proxy', ssh_host='rootnas')
+    if len(sys.argv) < 2:
+        print(f'usage: {sys.argv[0]} <docker-container-name> [<ssh-hostname>]', file=sys.stderr)
+        exit(1)
+
+    container_name = sys.argv[1]
+
+    ssh_hostname = None
+    if len(sys.argv) > 2:
+        ssh_hostname = sys.argv[2]
+
+    log: str = docker_logs(container_name, ssh_hostname)
     filtered: List[str] = [line for line in log.splitlines()
                            if Throughput.PATTERN in line]
     # filtered = filtered_example()