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Reconstruct Google Code wiki history from r390 on 2014-01-10: release 0.19.
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@@ -124,7 +124,7 @@ If you enter an invalid SPO command, or one that has errors in its syntax or ope
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|| `<mix>OU` || "Output Unit" -- reply to a `#LP RQD` or `#LP PBT MT RQD` message from the specified mix number to supply the physical output medium for a job's printer file if the `PBDONLY` option is not set and no line printer is currently available, e.g., `5OU MT` for a printer-backup tape. ||
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|| `PB` || "Print Backup" -- initiate printing of printer or punch data that has been spooled to disk or tape, e.g., `PB MTC` for a printer-backup tape, or `PB 231` for a backup file on disk. Printer- and punch-backup files on disk are named `PBD/`_nnnnsss_ and `PUD/`_nnnnsss_, respectively, where _nnnn_ is a backup-file number assigned by the MCP and _sss_ is a sequence number also assigned by the MCP. The _nnnn_ number is the one used with a `PB` command. Large printer files were broken up into multiple physical files on disk, all having the same _nnnn_ value but different _sss_ values. The MCP automatically prints all files having the same _nnnn_ value. ||
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|| `PD` || "Print Directory" -- list the names of files on disk matching the pattern specified by the operand. Disk files have two-level names, termed the multiple-file ID (MFID) and file ID (FID). Possible search patterns are `PD `_mfid_`/`_fid_, `PD `_mfid_`/=` (or `PD `_mfid_`=` or just `PD `_mfid_), `PD =/`_fid_ (or `PD =`_fid_), or `PD =/=` (or just `PD =`. ||
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|| `PG` || "Purge" -- purge a magnetic tape volume (reel) by writing a "scratch" label on it, and optionally assign a five-digit volume number in the process, e.g., `PG MTA` or `PG MTD-12345`, where `12345` is the volume number and the dash is required. ||
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|| `PG` || "Purge" -- purge a magnetic tape volume (reel) by writing a "scratch" label on it, and optionally assign a five-digit volume number in the process, e.g., `PG MTA` or `PG MTD-12345`, where `12345` is the volume number and the dash (with no spaces surrounding it) is required. ||
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|| `<mix>PR` || "Priority" -- change the priority of a job in the mix, e.g., `4PR=6`. The highest priority is 0 and the lowest is 9. ||
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|| `<mix>PS` || "Priority in Schedule" -- change the priority of a job that is in the schedule, similar to the `PR` command, e.g., `5PS=7`. The mix number is actually a schedule index. ||
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|| `QT` || "Quit Output" -- stop printing or punching the spooled file being output to the designated peripheral unit, e.g., `QT LPB` or `QT CPA`. Can also be entered with the mix number of the spooler job, e.g., `3QT`. The backup file on disk or tape is merely skipped, not purged. ||
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