# ed > The original Unix text editor. > See also: `awk`, `sed`. > More information: . - Start an interactive editor session with an empty document: `ed` - Start an interactive editor session with an empty document and a specific prompt: `ed --prompt='> '` - Start an interactive editor session with user-friendly errors: `ed --verbose` - Start an interactive editor session with an empty document and without diagnostics, byte counts and '!' prompt: `ed --quiet` - Start an interactive editor session without exit status change when command fails: `ed --loose-exit-status` - Edit a specific file (this shows the byte count of the loaded file): `ed {{path/to/file}}` - Replace a string with a specific replacement for all lines: `,s/{{regular_expression}}/{{replacement}}/g`