freebsd-nq/man/man8/zfs-diff.8
Ross Williams 870fc32fc9 Reorganize zfs(8) man page into sections
Most subcommands got their own manpages (e.g. create). Some related
commands grouped into a single manpage and symlinks created (e.g. set, 
get, and inherit). I did this when topics were either too short to 
warrant their own file or so interrelated that a user would want to
refer between commands in the same file.

Corrected .Sx internal references to .Xr cross refs; lots of .Sx 
references from when text was all in zfs.8 needed to be changed to 
.Xr zfs-$SUBCOMMAND 8 cross references.

Divided subcommand list in zfs(8) into sections of related 
functionality. This required writing new descriptions for some 
commands.

Preserved ".Os Linux", `.Os` macro parsing behavior differs between 
mandoc from the "BSD" mandoc package (available on Ubuntu) and man 
from Ubuntu's man-db package, which calls groff to format the manpages.

Groff handles the `.Os` macro differently and wrongly, defaulting 
it to "BSD" in `/usr/share/groff/*/tmac/mdoc/doc-common`, instead of
getting the default from `uname`.

A future set of changes will introduce build-time preprocessing of
manpages for platform-specific documentation and can insert the
correct operating system name.

Added SEE ALSO sections, the newly-divided zfs-*.8 subcommand man
pages needed their own SEE ALSO sections pointing to related
subcommands and, in some cases, documentation from other packages
(e.g. zfs-share.8).

Reviewed-by: Matt Ahrens <matt@delphix.com>
Reviewed-by: Kjeld Schouten <kjeld@schouten-lebbing.nl>
Reviewed-by: Sean Eric Fagan <sef@ixsystems.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ross Williams <ross@ross-williams.net>
Closes #9559
2019-11-12 11:17:40 -08:00

92 lines
2.7 KiB
Groff

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.\" Copyright (c) 2009 Sun Microsystems, Inc. All Rights Reserved.
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.Dd June 30, 2019
.Dt ZFS-DIFF 8
.Os Linux
.Sh NAME
.Nm zfs Ns Pf - Cm diff
.Nd Display the difference between two snapshots of a given filesystem.
.Sh SYNOPSIS
.Nm
.Cm diff
.Op Fl FHt
.Ar snapshot Ar snapshot Ns | Ns Ar filesystem
.Sh DESCRIPTION
.Bl -tag -width ""
.It Xo
.Nm
.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
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