.PP
\fBbtrfs\fP \fBsubvolume create\fP\fI [<dest>/]<name>\fP
.PP
-\fBbtrfs\fP \fBsubvolume list\fP\fI [-aoprts] [-g [+|-]value] [-c [+|-]value] [--rootid=rootid,gen,ogen,path] <path>\fP
+\fBbtrfs\fP \fBsubvolume list\fP\fI [-acgoprts] [-G [+|-]value] [-C [+|-]value] [--sort=rootid,gen,ogen,path] <path>\fP
.PP
\fBbtrfs\fP \fBsubvolume set-default\fP\fI <id> <path>\fP
.PP
\fI<dest>\fR is omitted).
.TP
-\fBsubvolume list\fR\fI [-aoprts][-g [+|-]value] [-c [+|-]value] [--sort=gen,ogen,rootid,path] <path>\fR
+\fBsubvolume list\fR\fI [-acgoprts] [-G [+|-]value] [-C [+|-]value] [--sort=rootid,gen,ogen,path] <path>\fR
.RS
List the subvolumes present in the filesystem \fI<path>\fR. For every
subvolume the following information is shown by default.
subvolume.
The subvolume's ID may be used by the \fBsubvolume set-default\fR command, or
-at mount time via the \fIsubvol=\fR option.
+at mount time via the \fIsubvolid=\fR option.
If \fI-p\fR is given, then \fIparent <ID>\fR is added to the output between ID
and top level. The parent's ID may be used at mount time via the
\fIsubvolrootid=\fR option.
\fB-a\fP print all the subvolumes in the filesystem and distinguish between
absolute and relative path with respect to the given <path>.
+\fB-c\fP print the ogeneration of the subvolume, aliases: ogen or origin generation
+
+\fB-g\fP print the generation of the subvolume
+
+\fB-u\fP print the UUID of the subvolume
+
\fB-o\fP print only subvolumes bellow specified <path>.
-\fB-r\fP only readonly subvolumes in the filesystem wille be listed.
+\fB-r\fP only readonly subvolumes in the filesystem will be listed.
-\fB-s\fP only snapshot subvolumes in the filesystem will be listed.
+\fB-s\fP only snapshot subvolumes in the filesystem will be listed.
-\fB-g [+|-]value\fP
+\fB-G [+|-]value\fP
list subvolumes in the filesystem that its generation is
>=, <= or = value. '+' means >= value, '-' means <= value, If there is
neither '+' nor '-', it means = value.
-\fB-c [+|-]value\fP
+\fB-C [+|-]value\fP
list subvolumes in the filesystem that its ogeneration is
>=, <= or = value. The usage is the same to '-g' option.
-\fB--sort=gen,ogen,path,rootid\fP
+\fB--sort=rootid,gen,ogen,path\fP
list subvolumes in order by specified items.
-you can add '+' or '-' in front of each items, '+' means ascending,'-'
+you can add '+' or '-' in front of each items, '+' means ascending, '-'
means descending. The default is ascending.
for \fB--sort\fP you can combine some items together by ',', just like