The text read off it
[02.06.08]
file.name — File.name must be the first item of the SPECIF card description field. It must be identical with the file.name in the FILE card.
[ ,UNIT1 'unit.1' ] [ ,UNIT2 'unit.2' ]
Note that the Quote Marks are mandatory. The alphameric literals 'unit.1' and 'unit.2' specify symbolically the I/O units (card or tape) to which the file is attached. The available unit specification includes relative unit assignment, symbolic channels, and tape transport model type. The secondary unit specification UNIT2 'unit.2', allows for the assignment of the secondary reel of a multi-reel file on another or the same unit which will be automatically referenced upon a reel switch. If UNIT2 is left blank, the secondary unit assignment will be the same as the primary unit. To explain these specifications the following notation is employed:
| Symbol | Meaning |
|---|---|
| X | denotes one of the real channels A,B,...,H |
| P | denotes a symbolic (unspecified physical) channel S,T,...,Z |
| k | denotes one of the numbers 1,...,9,0 |
| m | denotes a tape transport model number, II or IV |
The allowable unit specifications are:
- a) No specification - when the option is not exercised any available unit is to be assigned to the file.
- b) 'm' - any available unit of this model type is to be assigned to the file.
- c) 'X' - any available unit on this physical channel is to be assigned to the file.
- d) 'P' - all files in the job having this symbolic channel designation are to be assigned to the same channel.
- e) 'X(k)' - the kth available unit on the specified channel is to be assigned to the file; note that the parenthesis are required.