BCK copies standard RMS-11 files from one medium to another (disk-to-disk or disk-to-tape), translating the data into a special backup format. The backup copy contains the source file's attributes: account number, creation and revision dates, protection code, and so on. However, the attributes do not include placement control instructions; a file cannot be restored to the same physical place on a device that it was backed up from. backup files can only be accessed properly by the RST utility (type HELP RST for more information). User programs cannot change backup data. BCK uses only magnetic tapes with ANSI-standard labels. However, the backup data written by BCK between the labels may not comply with ANSI standards. To invoke installed BCK: BCK[command string] To invoke uninstalled BCK: RUN $RMSBCK Type HELP BCK COMMAND for an explanation of BCK's command line and switches. See the RMS-11 User's Guide for more information. 2 COMMAND The general form of BCK's command line is: outfile[/switch...]=infile[/switch...][,infile[/switch...]...] outfile - the filespec of a backup file. If the backup medium is disk, file name and extension must be *[.*]. If the backup medium is magtape, all backup files will be in a container file, which must be specified explicitly. infile - the filespec of a disk file from which the backup copy is to be created. Wild cards are allowed. Switches: Type Format Description Default String ? Print HELP message No help HELP Global /ID Identify current version No id /[NO]QU Enable/disable query mode /QU /SL[:filespec] Provide summary listing No summary (in file, if specified) Outfile /RA Read after writing No reading /RC Check after writing No checking /RW Rewind magtape before No rewinding writing /SU Supersede old files No supersede Infile /CD:date[:v] backup files based on No date creation date checking /RD:date[:v] backup files based on No date revision date checking where: date - dd-mon-yy v - not specified - created/revised on the specified date A - created/revised after the specified date B - created/revised before the specified date