On Fri, Mar 07, 2008 at 01:52:45AM -0500, Rob Logan wrote: > > Because then I have to compute yesterday's date to do the > > incremental dump. > > snaps=15 > today=`date +%j` > # to change the second day of the year from 002 to 2 > today=`expr $today + 0`
Er, can't this be confused with octal? Hmm, guess not. > nuke=`expr $today - $snaps` > yesterday=`expr $today - 1` > > if [ $yesterday -lt 1 ] ; then > yesterday=365 > fi Er, what if the year before was a leap year? Anyways, yes, you can keep symlinks to snapshots (.zfs/snapshot/<snapshot-name>). Also, you don't have to compute yesterday's date. You can just have a convention for naming these snapshots and do this: yesterday's snapshot name = zfs list -r <dataset>|grep <convention>|head -1 create today's snapshot delete yesterday's. _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
