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ZFS-DIFF(8) FreeBSD 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)
FreeBSD 14.0-RELEASE-p11 March 16, 2022 FreeBSD 14.0-RELEASE-p11