ZFS-DIFF(8) System Manager’s Manual ZFS-DIFF(8)
NAME
zfs-diff — show difference between ZFS snapshots
SYNOPSIS
zfs diff [−FHth] snapshot snapshot|filesystem
DESCRIPTION
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 (in case of rename), change in link count, and optionally file type and/or change time. The types of change are:
-
The path has been removed
+
The path has been created
M
The path has been modified
R
The path has been renamed
−F
Display an indication of the type of file, in a manner similar to the −F option of ls(1).
B
Block device
C
Character device
/
Directory
>
Door
|
Named pipe
@
Symbolic link
P
Event port
=
Socket
F
Regular file
−H
Give more parsable tab-separated output, without header lines and without arrows.
−t
Display the path’s inode change time as the first column of output.
−h
Do not \0ooo-escape non-ASCII paths.
EXAMPLES
Example 1: Showing the differences between a snapshot and a ZFS Dataset
The following example shows how to see what has changed between a prior snapshot of a ZFS dataset and its current state. The −F option is used to indicate type information for the files affected.
# zfs diff −F
tank/test@before tank/test
M / /tank/test/
M F /tank/test/linked (+1)
R F /tank/test/oldname -> /tank/test/newname
- F /tank/test/deleted
+ F /tank/test/created
M F /tank/test/modified
SEE ALSO
zfs-snapshot(8) OpenZFS March 16, 2022 ZFS-DIFF(8)