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import streamlit as st
import subprocess
# Set page configuration
st.set_page_config(page_title="Advanced Terminal Emulator", layout="wide")
# Custom CSS for output and error background colors
st.markdown("""
<style>
.output {
background-color: #d4edda; /* Green background for output */
padding: 10px;
border-radius: 5px;
border: 1px solid #c3e6cb;
}
.error {
background-color: #f8d7da; /* Red background for error */
padding: 10px;
border-radius: 5px;
border: 1px solid #f5c6cb;
}
</style>
""", unsafe_allow_html=True)
# Main title
st.title("🎨 Advanced Terminal Emulator")
# Instructions and description
st.markdown("""
This enhanced terminal emulator lets you run commands and view outputs in a clean and modern interface.
You can access previous commands and see results in a well-organized manner.
""")
# Command history management
if 'history' not in st.session_state:
st.session_state.history = []
# Function to run the command and capture output
def run_command(command):
try:
result = subprocess.run(command, shell=True, capture_output=True, text=True)
if result.stdout:
st.subheader("Output:")
st.markdown(f'<div class="output">{result.stdout}</div>', unsafe_allow_html=True)
if result.stderr:
st.subheader("Error:")
st.markdown(f'<div class="error">{result.stderr}</div>', unsafe_allow_html=True)
except Exception as e:
st.error(f"An error occurred: {e}")
# Layout with columns
col1, col2 = st.columns([2, 1])
# Command input and button in the first column
with col1:
command = st.text_area("Enter terminal command", placeholder="e.g., ls, pwd, echo 'Hello World'", height=100)
if st.button("Run Command"):
if command:
run_command(command)
# Add to command history
if command not in st.session_state.history:
st.session_state.history.append(command)
else:
st.warning("Please enter a command to run.")
# Command history display in the second column
with col2:
st.subheader("Command History")
for cmd in reversed(st.session_state.history):
if st.button(f"Run: {cmd}", key=cmd):
run_command(cmd)
# Optional file upload (if needed)
uploaded_file = st.file_uploader("Upload a file to process with command:", type=["txt", "csv"])
if uploaded_file:
file_content = uploaded_file.read().decode("utf-8")
st.subheader("Uploaded File Content")
st.text_area("File Content", value=file_content, height=200)
# Footer with additional information
st.markdown("""
---
**Note:** This is a simple terminal emulator built with Streamlit. Use it for running commands and managing outputs efficiently. For advanced usage, consider additional functionalities.
""")
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