app.py

import streamlit as st
import subprocess

# Set the page layout to wide mode for better spacing
st.set_page_config(page_title="Terminal Command Executor", layout="centered")

# Main title
st.title("🖥️ Simple Terminal Emulator")

# Instruction text
st.write("Enter a command and see the result below. This works just like your terminal!")

# Input field for terminal command
command = st.text_input("Enter terminal command", placeholder="e.g., ls, pwd, echo 'Hello World'")

# Button to run the command
if st.button("Run Command"):
    if command:
        try:
            # Execute the terminal command and capture the output
            result = subprocess.run(command, shell=True, capture_output=True, text=True)

            # Show the output
            if result.stdout:
                st.subheader("Output:")
                st.code(result.stdout)

            # Show any errors if they occur
            if result.stderr:
                st.subheader("Error:")
                st.code(result.stderr)
        except Exception as e:
            st.error(f"An error occurred: {e}")
    else:
        st.warning("Please enter a command to run.")