SKIPF Procedure (OpenVMS)

(OpenVMS Only) Skips records or files on the designated magnetic tape unit.

SKIPF, unit, files

SKIPF, unit, records, r

unit A number between 0 and 9 specifying the magnetic tape unit to rewind. (Do not confuse this parameter with file logical unit numbers.)

files The number of files to be skipped. If this number is positive, skipping is in the forward direction. Otherwise, files are skipped backwards.

records The number of records to be skipped. If this number is positive, skipping is in the forward direction. Otherwise, records are skipped backwards.

r If this third parameter is present, records are skipped; otherwise, files are skipped. (The value of r is never examined; its presence serves only to indicate that records are to be skipped.)

None.

The number of files or records actually skipped is stored in the system variable !Err. Note that when skipping records, the operation terminates immediately when the end of a file is encountered.

TAPRD, TAPWRT

System Variables: !Err

For more information and sample usage, see Accessing Magnetic Tape in Chapter 8 of the PV-WAVE Programmer's Guide.