+---------+---------+---------+ | Parameter | Shortcut | Descrition | +---------+---------+---------+ | Append text to a file. This parameter takes a string value and may be used multiple times. | --append | -a  | +---------+---------+---------+ | Prepend text to a file. This parameter takes a string value and may be used multiple times. | --prepend | -p  | +---------+---------+---------+ | Forces the action desired without paying attention to any errors. | --force | -f  | +---------+---------+---------+ | Silence all kinds of warnings issued by this program. | --silent | -s  | +---------+---------+---------+