diff --git a/mle/function/execution.py b/mle/function/execution.py
index 0b83858..0a192af 100644
--- a/mle/function/execution.py
+++ b/mle/function/execution.py
@@ -3,27 +3,38 @@
 """
 
 import subprocess
+from collections import deque
 
 
-def execute_command(command: str):
+def execute_command(command: str, max_lines: int = 30):
     """
-    Run multiple commands in the shell and return the outputs, errors, and exit statuses.
+    Run a command in the shell and return the outputs, errors, and exit status,
+    limiting the output to a specified number of most recent lines.
+
     Args:
-        command: the list of input commands to run.
+        command (str): The input command to run.
+        max_lines (int): Maximum number of output lines to keep. Defaults to 100.
 
-    Return: a string of the output, error (if any), and exit status for the command.
+    Return: A string of the exit status and the limited output (most recent lines).
     """
     try:
         process = subprocess.Popen(command, shell=True, stdout=subprocess.PIPE, stderr=subprocess.STDOUT, text=True)
-        output = ''
+        output_buffer = deque(maxlen=max_lines)
+
         while True:
             line = process.stdout.readline()
             if not line and process.poll() is not None:
                 break
-            output += line
+            output_buffer.append(line.rstrip())
             print(line, end='')
 
         exit_code = process.wait()
-        return f"Exit code: {exit_code} \nOutput: \n{output}"
+
+        limited_output = "\n".join(output_buffer)
+        if len(output_buffer) == max_lines:
+            return f"Exit code: {exit_code}\nOutput (last {max_lines} lines):\n{limited_output}"
+        else:
+            return f"Exit code: {exit_code}\nOutput:\n{limited_output}"
+
     except Exception as e:
         return f"Error running command: {str(e)}"