man/man8/zfs-diff.8

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  32 .Dd March 16, 2022
  33 .Dt ZFS-DIFF 8
  34 .Os
  35 .
  36 .Sh NAME
  37 .Nm zfs-diff
  38 .Nd show difference between ZFS snapshots
  39 .Sh SYNOPSIS
  40 .Nm zfs
  41 .Cm diff
  42 .Op Fl FHth
  43 .Ar snapshot Ar snapshot Ns | Ns Ar filesystem
  44 .
  45 .Sh DESCRIPTION
  46 Display the difference between a snapshot of a given filesystem and another
  47 snapshot of that filesystem from a later time or the current contents of the
  48 filesystem.
  49 The first column is a character indicating the type of change, the other columns
  50 indicate pathname, new pathname
  51 .Pq in case of rename ,
  52 change in link count, and optionally file type and/or change time.
  53 The types of change are:
  54 .Bl -tag -compact -offset Ds -width "M"
  55 .It Sy -
  56 The path has been removed
  57 .It Sy +
  58 The path has been created
  59 .It Sy M
  60 The path has been modified
  61 .It Sy R
  62 The path has been renamed
  63 .El
  64 .Bl -tag -width "-F"
  65 .It Fl F
  66 Display an indication of the type of file, in a manner similar to the
  67 .Fl F
  68 option of
  69 .Xr ls 1 .
  70 .Bl -tag -compact -offset 2n -width "B"
  71 .It Sy B
  72 Block device
  73 .It Sy C
  74 Character device
  75 .It Sy /
  76 Directory
  77 .It Sy >
  78 Door
  79 .It Sy |\&
  80 Named pipe
  81 .It Sy @
  82 Symbolic link
  83 .It Sy P
  84 Event port
  85 .It Sy =
  86 Socket
  87 .It Sy F
  88 Regular file
  89 .El
  90 .It Fl H
  91 Give more parsable tab-separated output, without header lines and without
  92 arrows.
  93 .It Fl t
  94 Display the path's inode change time as the first column of output.
  95 .It Fl h
  96 Do not
  97 .Sy \e0 Ns Ar ooo Ns -escape
  98 non-ASCII paths.
  99 .El
 100 .
 101 .Sh EXAMPLES
 102 .\" These are, respectively, examples 22 from zfs.8
 103 .\" Make sure to update them bidirectionally
 104 .Ss Example 1 : No Showing the differences between a snapshot and a ZFS Dataset
 105 The following example shows how to see what has changed between a prior
 106 snapshot of a ZFS dataset and its current state.
 107 The
 108 .Fl F
 109 option is used to indicate type information for the files affected.
 110 .Bd -literal -compact -offset Ds
 111 .No # Nm zfs Cm diff Fl F Ar tank/test@before tank/test
 112 M       /       /tank/test/
 113 M       F       /tank/test/linked      (+1)
 114 R       F       /tank/test/oldname -> /tank/test/newname
 115 -       F       /tank/test/deleted
 116 +       F       /tank/test/created
 117 M       F       /tank/test/modified
 118 .Ed
 119 .
 120 .Sh SEE ALSO
 121 .Xr zfs-snapshot 8