Bidirectional filesystem syncing - DirSync Pro vs. Unison

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12-03-2008

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Bidirectional filesystem syncing - DirSync Pro vs. Unison

12-03-2008 02:00 AM
Everyone knows and loves rsync, the command that lets you clone a directory tree to another disk or system with the ability to keep the clone fresh in an incremental and bandwidth-efficient manner. Sometimes, however, you want to sync in the reverse direction. With bidirectional filesystem syncing tools, there is no primary filesystem -- you just tell the tool to make sure both target directories, or clones, are identical. Here's a hands-on look at two tools designed to accomplish that task: DirSync Pro and Unison.

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LEARN ABOUT BSD

quotaon

QUOTAON(8)						      System Manager's Manual							QUOTAON(8)

NAME

       quotaon, quotaoff - turn filesystem quotas on and off

SYNOPSIS

       quotaon [-v] filesystem ...
       quotaon [-v] -a
       quotaoff [-v] filesystem ...
       quotaoff [-v] -a

DESCRIPTION

       Quotaon	announces  to the system that disk quotas should be enabled on one or more filesystems.  Quotaoff announces to the system that the
       specified filesystems should have any disk quotas diskquotas turned off.  The filesystems specified must have entries in /etc/fstab and	be
       mounted.   Quotaon  expects  each  filesystem  to  have a quota file named quotas located at the root of the associated file system.  These
       defaults may be overridden in /etc/fstab.

       Available options:

       -a	      If the -a flag is supplied in place of any filesystem names, quotaon/quotaoff will enable/disable all the filesystems  indi-
		      cated in /etc/fstab to be read-write with disk quotas.

       -v	      Causes quotaon and quotaoff to print a message for each filesystem where quotas are turned on or off.

FILES

       quotas	      at the filesystem root with user quotas

       /etc/fstab     filesystem table

SEE ALSO

       quota(1), setquota(2), fstab(5), edquota(8), quotacheck(8), repquota(8)

HISTORY

       The quotaon command appeared in 4.2BSD.

4.2 Berkeley Distribution					 January 21, 1996							QUOTAON(8)

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