* [linux-lvm] indistinguishable column names ( BA Start Start Start Start )
@ 2023-08-19 15:20 Roland
2023-08-19 16:05 ` Roland
0 siblings, 1 reply; 6+ messages in thread
From: Roland @ 2023-08-19 15:20 UTC (permalink / raw)
To: LVM general discussion and development
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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https://listman.redhat.com/mailman/listinfo/linux-lvm
read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [linux-lvm] indistinguishable column names ( BA Start Start Start Start )
2023-08-19 15:20 [linux-lvm] indistinguishable column names ( BA Start Start Start Start ) Roland
@ 2023-08-19 16:05 ` Roland
2023-08-21 16:00 ` Marian Csontos
2023-08-21 16:17 ` David Teigland
0 siblings, 2 replies; 6+ messages in thread
From: Roland @ 2023-08-19 16:05 UTC (permalink / raw)
To: LVM general discussion and development
> 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
>
_______________________________________________
linux-lvm mailing list
linux-lvm@redhat.com
https://listman.redhat.com/mailman/listinfo/linux-lvm
read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [linux-lvm] indistinguishable column names ( BA Start Start Start Start )
2023-08-19 16:05 ` Roland
@ 2023-08-21 16:00 ` Marian Csontos
2023-08-22 9:01 ` Roland
2023-08-21 16:17 ` David Teigland
1 sibling, 1 reply; 6+ messages in thread
From: Marian Csontos @ 2023-08-21 16:00 UTC (permalink / raw)
To: LVM general discussion and development
[-- Attachment #1.1: Type: text/plain, Size: 3545 bytes --]
Hi Roland, is `lvs --reportformat json` or `lvs --nameprefixes` good enough?
On Sat, Aug 19, 2023 at 6:06 PM Roland <devzero@web.de> 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
> >
> _______________________________________________
> linux-lvm mailing list
> linux-lvm@redhat.com
> https://listman.redhat.com/mailman/listinfo/linux-lvm
> read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
>
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_______________________________________________
linux-lvm mailing list
linux-lvm@redhat.com
https://listman.redhat.com/mailman/listinfo/linux-lvm
read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [linux-lvm] indistinguishable column names ( BA Start Start Start Start )
2023-08-19 16:05 ` Roland
2023-08-21 16:00 ` Marian Csontos
@ 2023-08-21 16:17 ` David Teigland
2023-08-21 23:45 ` Roland
1 sibling, 1 reply; 6+ messages in thread
From: David Teigland @ 2023-08-21 16:17 UTC (permalink / raw)
To: Roland; +Cc: LVM general discussion and development
On Sat, Aug 19, 2023 at 06:05:58PM +0200, Roland 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)
Usually if you're interested in exact fields, you'd avoid the default
options and just use "-o opt1,opt2,..." without +/-.
> # 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
It does sound better than some of the strange header abbreviations.
It could also use the key words that appear with --nameprefixes.
Dave
_______________________________________________
linux-lvm mailing list
linux-lvm@redhat.com
https://listman.redhat.com/mailman/listinfo/linux-lvm
read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [linux-lvm] indistinguishable column names ( BA Start Start Start Start )
2023-08-21 16:17 ` David Teigland
@ 2023-08-21 23:45 ` Roland
0 siblings, 0 replies; 6+ messages in thread
From: Roland @ 2023-08-21 23:45 UTC (permalink / raw)
To: LVM general discussion and development, David Teigland
Am 21.08.23 um 18:17 schrieb David Teigland:
> On Sat, Aug 19, 2023 at 06:05:58PM +0200, Roland 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)
> Usually if you're interested in exact fields, you'd avoid the default
> options and just use "-o opt1,opt2,..." without +/-.
yes, that makes totally sense - there are default options, "+" adds
some options,
"- removes some , and -o without "+/-" just makes it print exactly what
we want.
totally straightforward if understood, i was just too lazy, sorry.
>> # 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
> It does sound better than some of the strange header abbreviations.
> It could also use the key words that appear with --nameprefixes.
i have found the place where to add an RFE and did that :
https://bugzilla.redhat.com/show_bug.cgi?id=2233336
thank you
roland
_______________________________________________
linux-lvm mailing list
linux-lvm@redhat.com
https://listman.redhat.com/mailman/listinfo/linux-lvm
read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [linux-lvm] indistinguishable column names ( BA Start Start Start Start )
2023-08-21 16:00 ` Marian Csontos
@ 2023-08-22 9:01 ` Roland
0 siblings, 0 replies; 6+ messages in thread
From: Roland @ 2023-08-22 9:01 UTC (permalink / raw)
To: LVM general discussion and development, Marian Csontos
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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@web.de> 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
> >
> _______________________________________________
> linux-lvm mailing list
> linux-lvm@redhat.com
> https://listman.redhat.com/mailman/listinfo/linux-lvm
> read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
>
>
> _______________________________________________
> linux-lvm mailing list
> linux-lvm@redhat.com
> https://listman.redhat.com/mailman/listinfo/linux-lvm
> read the LVM HOW-TO athttp://tldp.org/HOWTO/LVM-HOWTO/
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https://listman.redhat.com/mailman/listinfo/linux-lvm
read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
^ permalink raw reply [flat|nested] 6+ messages in thread
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2023-08-19 15:20 [linux-lvm] indistinguishable column names ( BA Start Start Start Start ) Roland
2023-08-19 16:05 ` Roland
2023-08-21 16:00 ` Marian Csontos
2023-08-22 9:01 ` Roland
2023-08-21 16:17 ` David Teigland
2023-08-21 23:45 ` Roland
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