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.\" Copyright 2011 Joshua M. Clulow <josh@sysmgr.org>
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.Dd June 30, 2019
.Dt ZFS-DIFF 8
.Os Linux
.Sh NAME
.Nm zfs-diff
.Nd Display the difference between two snapshots of a given filesystem.
.Sh SYNOPSIS
.Nm zfs
.Cm diff
.Op Fl FHt
.Ar snapshot Ar snapshot Ns | Ns Ar filesystem
.Sh DESCRIPTION
.Bl -tag -width ""
.It Xo
.Nm zfs
.Cm diff
.Op Fl FHt
.Ar snapshot Ar snapshot Ns | Ns Ar filesystem
.Xc
Display the difference between a snapshot of a given filesystem and another
snapshot of that filesystem from a later time or the current contents of the
filesystem.
The first column is a character indicating the type of change, the other columns
indicate pathname, new pathname
.Pq in case of rename ,
change in link count, and optionally file type and/or change time.
The types of change are:
.Bd -literal
-       The path has been removed
+       The path has been created
M       The path has been modified
R       The path has been renamed
.Ed
.Bl -tag -width "-F"
.It Fl F
Display an indication of the type of file, in a manner similar to the
.Fl F
option of
.Xr ls 1 .
.Bd -literal
B       Block device
C       Character device
/       Directory
>       Door
|       Named pipe
@       Symbolic link
P       Event port
=       Socket
F       Regular file
.Ed
.It Fl H
Give more parsable tab-separated output, without header lines and without
arrows.
.It Fl t
Display the path's inode change time as the first column of output.
.El
.El
.Sh SEE ALSO
.Xr zfs-snapshot 8