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dump backup command

The -u option will update the file /etc/dumpdates, which will record dump information for future use. This command performs a full backup of the /home file system onto the tape device nrst1 and record the dump information in /etc/dumpdates as specified by the -u option.
The -u option will update the file /etc/dumpdates, which will record dump information for future use. This command performs a full backup of the /home file system onto the tape device nrst1 and record the dump information in /etc/dumpdates as specified by the -u option.


This use of the -u option performs an incremental update of all files that have been changed or added since the last backup of level 4 or lower, as recorded in the /etc/dumpates file.
This use of the -u option performs an incremental update of all files that have been changed or added since the last backup of level 4 or lower, as recorded in the /etc/dumpates file.