File No. 8360-36
Systems Reference Library
IBM System/360 Operating System:
Time Sharing Option
Command Language Reference
OS Release 21.7
Fifth Edition (April, 1973)
This is a major rev~s~on of, and obsoletes, GC28-6732-3 and
GC28-6732-2 with Technical Newsletters GN28-2521 and
GN28-2531. See the Summary of Amendments following the
COntents. Changes or additions to the text and illustrations
are indicated by a vertical bar to the left of the change.
I Thisedition applies to release 21.7, of IBM System/360
Operating System, and to all subsequent releases until
otherwise indicated in new editions or Technical Newsletters.
Changes are continually made to the information herein;
before using this publication in connection with the
operation of IBM systems, consult the latest IBM system/360
and system/370 Bibliography, GA22-6822, for the editions that
are applicable and current.
Requests for copies of IBM publicati|