# sgpt > Command-line productivity tool powered by OpenAI's GPT models. > More information: . - Use it as a search engine, asking for the mass of the sun: `sgpt "{{mass of the sun}}"` - Execute Shell commands, and apply `chmod 444` to all files in the current directory: `sgpt --shell "{{make all files in current directory read only}}"` - Generate code, solving classic fizz buzz problem: `sgpt --code "{{solve fizz buzz problem using Python}}"` - Start a chat session with a unique session name: `sgpt --chat {{session_name}} "{{please remember my favorite number: 4}}"` - Start a `REPL` (Read–eval–print loop) session: `sgpt --repl {{command}}` - Display help: `sgpt --help`