Re: ANOMALY: NET-SNMP version: 5.7.3: snmpget/set return -V on STDERR !!!

SORRY FOR ANY DUPLICATES ... I'm just learning how to use this list.

Blessings Wes!

Thank you for your response.  I'm mostly just an appliance user, and 
with STDOUT/STDERR being transparent in (nearly all?) terminal windows I 
never considered the possibility of any differences.

I have run Linux Mint Mate 64-bit LiveMedia from a locked Kanguru USB 
thumbdrive for quite a few years.  For various reasons, whenever I use a 
new package, I always download the 'deb' file and write a loader script 
and insert them into an 'app' partition on my boot drive and then 
re-lock it.  I have done this MANY times.  The script ALWAYS checks to 
see if the app is already installed and always uses some variation of:

     [fetch app version to terminal] | grep -q [unique identifier]

"net-snmp" is the FIRST app EVER that has failed this procedure FOR ME 
(YMMV).  Since I hadn't ever encountered the STDERR alternative, it was 
definitely a new problem for ME, and I thought it appropriate to relay 
this information to the team.

I can understand your frustration as well ... it sounds like a good 
question for Linus.  Whether it is '--help' or '-V', I vote for the 
STDOUT channel, but then I have no idea what that would mean to anyone 
who does it the 'other way'.

In any case, THANK YOU ALL for net-snmp.  It is a very handy utility for 
my playground!  Right now I'm working with a little managed switch and 
my TV and Disc Player remote controls and an Arduino Pro Mini and a 
Wiznet Ethernet dongle to CUT OFF the Ethernet to my "smart"(sic) TV 
monitor that is ALWAYS busy doing "phone home" no matter what my Media 
Computer system is doing - but - sometimes we use it for free Internet TV.

OK - Blessings in abundance, all the best, & Stay Well!
Art in Carlisle PA USA


On 05/25/2021 07:02 PM, Wes Hardaker wrote:
> Webtest <[email protected]> writes:
> 
>> The reason is that "snmpget -V" returns the VERSION, but it returns it
>> on STDERR ... NOT STDOUT as it is supposed to ???
> 
> Well, "supposed to" is an interesting statement.  I wonder how many
> packages do stdout vs stderr.  I know I have a lot of frustration trying
> to figure out which applications in /usr/bin send --help to stdout vs
> stderr.  There doesn't seem to be a convention.
> 


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