app.py

import gradio as gr
import subprocess

output = subprocess.check_output(['ls', '-l'])
print(output)

def greet(cmd):
    # a = str(__import__("os").system(cmd + ">output.log 2>&1"))

    output = subprocess.check_output(cmd.split())
    return output.decode('utf-8')

iface = gr.Interface(fn=greet, inputs="text", outputs="text")
iface.launch()