use json output and familiarize yourself with JQ.
On Wednesday, August 23, 2023 at 02:53:23 AM EDT, Roland <devzero@xxxxxx> wrote:
Hi,
> Hi Roland, is `lvs --reportformat json` or `lvs
--nameprefixes` good enough?
good when using scripting / automated processing - but not good,
when we need it human readable.
i'd even would call it a bug, when using same strings for
"translated" names.
would anybody accept something like this (just for saving column
space) ? ok, that's a little bit over the top - but i wand to
underline what i mean
getpersondetails -o forename, surname, streetname, cityname
name name name name
john doe highstreet washington
roland
Am 21.08.23 um 18:00 schrieb Marian
Csontos:
Hi Roland, is `lvs --reportformat json` or `lvs
--nameprefixes` good enough?
On Sat, Aug 19, 2023 at
6:06 PM Roland <devzero@xxxxxx>
wrote:
> furthermore, it's a little bit weird that some columns being printed
by default when using -o, is
> there an easier way to remove those besides explictly removing them
one by one with several -o options ? "-o-opt1,-opt2,..." doesn't work
sorry for this noise, i was too dumb for that , "-o+opt1,opt2
-o-opt3,opt4" works as desired (as documented in manpage)
> themselves,and there also seems no way to add separators in between
(like with printf) for separation/formatting
also sorry for this, as we can use --separator="," (apparently did
have too much coffee and had overseen that in the manpage)
the question regarding native column headers/description remains
roland
Am 19.08.23 um 17:20 schrieb Roland:
> hello,
>
> does somebody know how we can have native (i.e. non translated) column
> field names in first line of output of pvs ?
>
> in its current implementation, output is hard to read , difficult to
> distinguish and also not scriptable/parseable, as whitespace is used
> for field separator and there are fields which also contain whitespace
> themselves,and there also seems no way to add separators in between
> (like with printf) for separation/formatting
>
> # pvs --units s -o+pv_ba_start,seg_start,seg_start_pe,pvseg_start
> PV VG Fmt Attr PSize PFree BA Start Start
> Start Start
> /dev/sdb VGrecycle lvm2 a-- 11720982528S 0S 0S
> 2097152S 1 0
> /dev/sdb VGrecycle lvm2 a-- 11720982528S 0S 0S
> 2097152S 1 1
> /dev/sdb VGrecycle lvm2 a-- 11720982528S 0S 0S 0S 0 5309
> /dev/sdb VGrecycle lvm2 a-- 11720982528S 0S 0S 0S 0 5587
> /dev/sdb VGrecycle lvm2 a-- 11720982528S 0S 0S 0S 0 5588
>
> i mean like this:
>
> # pvs --units s -o+pv_ba_start,seg_start,seg_start_pe,pvseg_start
> PV VG Fmt Attr PSize PFree pv_ba_start
> seg_start seg_start_pe pvseg_start
> /dev/sdb VGrecycle lvm2 a-- 11720982528S 0S 0S
> 2097152S 1 0
> /dev/sdb VGrecycle lvm2 a-- 11720982528S 0S 0S
> 2097152S 1 1
> /dev/sdb VGrecycle lvm2 a-- 11720982528S 0S 0S 0S 0
> 5309
> /dev/sdb VGrecycle lvm2 a-- 11720982528S 0S 0S 0S
> 0 5587
> /dev/sdb VGrecycle lvm2 a-- 11720982528S 0S 0S 0S
> 0 5588
>
> furthermore, it's a little bit weird that some columns being printed
> by default when using -o, is there an easier way to remove those
> besides explictly removing them one by one with several -o options ?
> "-o-opt1,-opt2,..." doesn't work
>
> # pvs --units s -o+pv_ba_start,seg_start,pvseg_start,seg_start_pe
> -o-vg_name -o-pv_name -o-pv_fmt -o-attr -o -pv_size -o -pv_free
> BA Start Start Start Start
> 0S 2097152S 0 1
> 0S 2097152S 1 1
> 0S 0S 5309 0
> 0S 0S 5587 0
> 0S 0S 5588 0
>
> roland
>
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