Resets the current settings to 'null', NOT to those in the original input file. The grouping is not reset to that of the original file. This command allows a keyword value to be changed. Users are permitted to change the values of a subsection of the mandatory keywords. This command does not stop the task, thus settings can be altered further and subsequently written to another file.
EXIT Exits the task.
This filename overrides the input parameter outfile. If the user wants to overwrite the original setting the reset command should be used. When using files with the bad and good commands, filenames with hyphens are not permitted. In order to do this a fitsio continuation convention is used. This may cause problems if downstream software has not been appropriately modified.