The table below lists the available options and indicates whether they can be used for INP, OUT or both. The Position column specifies the option's use when concatenating; it is either A (for all files) or F (first file only)
| Option | Su | Position | Meaning |
| device | both | A | Type of device. $disk, $tape or $mem |
| Default: device=$disk | |||
| first_subrun | INP | A | First subrun when file name includes wildcard ? |
| Default: first_subrun=0 | |||
| format | OUT | F | Output format. Either $full_ds or $zdab_only |
| Default: As set by $default_output_option | |||
| last_subrun | INP | A | Last subrun when file name includes wildcard ? |
| Default: last_subrun=999 | |||
| max | INP | A | Event input limit. |
| Default: max=999999999 | |||
| skip | INP | A | No. of events to skip before processing |
| Default: skip=0 | |||
| weight | INP | F | Weight to use when selecting by weight |
| Default: weight=1.0 |
Please note: there must be no spaces either side of the equals sign.
The device=$mem option is described in section 21.3.