zfs-diff
—
show difference between ZFS snapshots
zfs |
diff
[-FHth ]
snapshot
snapshot|filesystem |
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.
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
zfs-snapshot(8)