Vgs: Difference between revisions
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Output unit: (h)uman-readable, (b)ytes, (s)ectors, (k)ilobytes, (m)egabytes, (g)igabytes, (t)erabytes, (p)etabytes, (e)xabytes. Capitalise to use multiples of 1000 (S.I.) instead of 1024. | Output unit: (h)uman-readable, (b)ytes, (s)ectors, (k)ilobytes, (m)egabytes, (g)igabytes, (t)erabytes, (p)etabytes, (e)xabytes. Capitalise to use multiples of 1000 (S.I.) instead of 1024. | ||
==--nosuffix== | |||
Suppress the suffix on output sizes. Use with [[#--units|--units]]. | |||
=Example= | =Example= | ||
Revision as of 04:27, 23 May 2017
Internal
Overview
Command that provides information information about volume groups.
# vgs VG #PV #LV #SN Attr VSize VFree docker_vg 1 0 0 wz--n- 508.00m 508.00m main_vg 1 1 0 wz--n- 7.00g 0
Options
--noheadings
Drops headers, useful when the output if mechanically processed.
-o
Options, displays various fields:
- vg_name - displays the volume group name.
- vg_free - free space in the volume group. Also see --units.
-S
Select: Display only rows that match selection criteria. The fields that can be used are listed in the -o section.
-S vg_name=${something},...
--units
Output unit: (h)uman-readable, (b)ytes, (s)ectors, (k)ilobytes, (m)egabytes, (g)igabytes, (t)erabytes, (p)etabytes, (e)xabytes. Capitalise to use multiples of 1000 (S.I.) instead of 1024.
--nosuffix
Suppress the suffix on output sizes. Use with --units.
Example
Free Space in the Volume Group
The amount of free space in bytes on a volume group:
vgs --noheadings --nosuffix --units b -o vg_free docker_vg