Need actual output of vecheck command

[Vineet Deshpande]

Hi,

I need the actual output of the vecheck command used to identify if a system is vPar or not. Can someone please paste it here??

Thanks,

Vineet

[Torsten.]

According to this:

vecheck(1):
DESCRIPTION
The vecheck command uses its exit status to report whether or not the
command has been run in a virtual partition (vPars) environment. The
result can be used to alter command flow in a script.
...
RETURN VALUE
The vecheck command exits with one of the following values:

0 The command is run in a vPars environment.
255 The command is run in a non-vPars environment.




it will print nothing to the screen, you need to read the return value.

[Vineet Deshpande]

Hi Torsten,

Thanks a lot. But if you/anyone do have a vPar setup can you check the output of this command:-

vparstatus -w -M

/sbin/vecheck 1>/dev/null ; echo $?

Thanks,

Vineet

[Torsten.]

Currently I don't have access.

But the echo $? should return either 0 or 255, the other command returns this:

# vparstatus -w
The current virtual partition is myvpar01.

According to the man page

"...

-M Displays attribute and resource information in a machine-
readable format, or restricts output of the -w option to
the name of the local virtual partition.
..."

the result of the following must be the vPar name only


# vparstatus -w -M
myvpar01

[likid0 · Accepted solution]

[root@sd:~]# vparstatus -w -M
PPDDBB1
[root@sd:~]# /sbin/vecheck >/dev/null ; echo $?
0

[Vineet Deshpande]

Hi Daniel,

Thanks a lot for the info. I have 2 questions more for you:-

1) Did you execute the command with superuser or normal?

2) What is the output of the command: /sbin/vecheck

Thanks,

Vineet

[Patrick Wallek]

Daniel executed those commands as root, so super user.

If you read the man page excerpt posted by Torsten it says basically that there is no output generated by vecheck.

You have to look at the exit code to determine whether it's a VPAR or not.

[likid0]

As patrick says, there is no output to the command that's why you do and echo to $?

/sbin/vecheck ; echo $?

EXAMPLES
In a vPars environment:

vecheck
echo $?
0

In a non-vPars environment:

vecheck
echo $?
255

[Vineet Deshpande]

Hi Patrick,

I am aware that vparstatus can be executed only by superuser. Does vecheck require superuser or will normal user also be able to execute that command?

Thanks,

Vineet

[Patrick Wallek]

>>I am aware that vparstatus can be executed only by superuser.

But that is not what you asked! You asked **HOW** Daniel executed the commands.

[Vineet Deshpande]

Hi Patrick,

I apologize. I asked the wrong question. The correct question is:-

Does vecheck require superuser or can a normal user execute the command?

Thanks,

Vineet

[Ganesan R]

Hi Vineet,

Normal user can execute the command. It has execute permission to everyone.

# ll /sbin/vecheck
-r-xr-xr-x 1 bin bin 15648 Oct 8 2003 /sbin/vecheck
#

It is working as normal user also. see below

$ /sbin/vecheck >/dev/null ; echo $?
0
$

[Vineet Deshpande]

Thanks a LOT Ganesan !!

[Vineet Deshpande]

Hi Ganesan / Daniel,

Can you please run this command on any vPar and let me know the output of the same?

/sbin/vecheck >/dev/null 2>/dev/null ; echo $? | grep "0" 2>/dev/null

Thanks a lot,

Vineet

[Viktor Balogh]

>Can you please run this command on any vPar and let me know the output of the same?

#/sbin/vecheck >/dev/null 2>/dev/null ; echo $? | grep "0" 2>/dev/null
0

though if you're fiddling with some shell script i would recommend you the following:

#!/usr/bin/ksh
/sbin/vecheck
if [ $? -eq ]
then
echo "vPar environment detected!"
else
echo "This is not a virtual partition."
fi