WHO command displays information about your TACL user environment.
11> WHO Home terminal: $ZNT1.#PTQAJUS TACL process: \M7.$X69R Primary CPU: 3 (NSE-AD) Default Segment File: $SYSTM2.#6437877 Pages allocated: 112 Pages Maximum: 48160 Bytes Used: 12540 (0%) Bytes Maximum: 98631680 Current volume: $SYSTM2.TKNGA Saved volume: $SYSTM2.TKNGA Userid: 1,105 Username: APPL.TKNGA Security: "NNNN" Logon name: APPL.TKNGA
Information on errors are available with the
5> FUP COPY IT0419 ERROR - $EP04.DCCITALY.IT0419: OPEN ERR 48 *ABEND* ABENDED: $Y9RD
To look up error code 48
8> ERROR 48 0048 Security violation; illegal operation attempted.