CGI

Content Type

Start all HTML output with:

# bash:
echo -e "Content-Type: text/html\n"

# Python:
print("Content-Type: text/html\n")

If you want just text output:

echo -e "Content-Type: text/plain\n"

print("Content-Type: text/plain\n")

404

Python:

print("Status: 404 Not Found\n\n")
sys.exit(0)