The Comms Room

github.com/GABeech/SysAdminTools/blob/master/SQLIO/…

^^ see that

12:21 AM

@Zypher Still around?

@WesleyDavid yessir

I'm trying to make a script to check each storage group on a mailbox server to see if circular logging is enabled.

So here's the weirdness I'm hitting

I just wanted to make sure I was getting the storage groups and cycling through each one properly:

$sg = get-storagegroup
foreach ($sg.count in $sg) {$sg.name}

Okay, with the above two-liner I get a list of all three storage groups

However, the weirdness that happens is that after I run it once, it only ever lists the last of the three storage groups again.

I have no idea if that made sense.

So output for running it once is :
OMEGA\First Storage Group.name
OMEGA\Second Storage Group.name
OMEGA\Journal Group.name

If I run it a second time:

OMEGA\Journal Group.name

So it's like it's overwriting the first two in the array? I dunno.

hmm, it's probably because the pointer is getting incremented

something with your count?

i'd probably do something like:

12:25 AM

So I can run this:
foreach ($sg.count in $sg) {$sg.circularloggingenabled}

and get

False
False
False

But if I run it a second time:
False

$sg = get-storagegroup
foreach ($group in $sg){group.name}

err - yea edit is right

Hmmm

Help a scripting noob out

What's $group?

What are you referencing? I should look for a different class to count?

I had my doubts about .count

so group is a new variable you are creating just for the loop

ah, okay

@Holocryptic According to my head measurement for fitted hats I need a S/M. The L is clearly too large. However the fitted L/XL is sized for the entire range of S-XL.

12:30 AM

basically what foreach is doing is looping through the collection ($sg) and setting $group to the individual objects in the collection

which you are then getting the name property from

@Zypher Oh interesting. PS is so loose that I have a hard time seeing what is being done with variables in loops like that.

@ScottPack stretchy band? I don't think "fitted" == "One size"

more like one size fits all

@Holocryptic In fact it doesn't. Fitted explicitly means "non-adjustable".

@WesleyDavid yep that behavior is the same as VBScript

@ScottPack Right...

12:33 AM

so if you knew that it helps :)

@Zypher Okay, cool, it's not smashing the variable up, so that's good. But... I'm still not sure 1) Why the first iteration chunked and 2) Why it now works. =)

@ScottPack doh, I was looking in the wrong spot

Time to go pester someone at PowerShell Community.com

i'm actually not quite sure why the first iteration worked :)

@Holocryptic Yeah, it makes no freaking sense. A fitted cap size that covers a 3 inch range?

12:34 AM

it was effectivly saying set the property $sg.count to the current object in the collection which shouldn't have been possibe

although it may have tried to be smart and just set $sg to something

and left it as just a plain object and not a collection on your last run

so if you looped it twice without doing get-storagegroup again it would only have that one object in it

Hmm, so in the foreach parenthesis, ($sg.count in $sg) - $sg.count is actually being modified, rather than just used as a number to count through?

@ScottPack Maybe find a brick and mortor sports store that sells it and try one. It does seem kind of self defeating though. I didn't realize that the tolerances between small head, normal head, and ginormous freaking head were so tight...

right, you don't need to count on a foreach

it will look through a collection/array till it hits the end

ginormous totally shows up as a correctly spelled word in the chat box....

I was thinking like C for (i = 0; i < 10; i++)

12:37 AM

yes

IIRC you can use for

but foreach is so much better

So foreach is it's own counter... okay, I see it now.

@Holocryptic This weekend I was going to hit up our sporting goods store and see what they had. If they don't have anything I like, I was then going to go ahead and order one online and see how she fits. Worst case, I have to ship it back.

So wait, then I don't need the in statement. Just foreach ($sg) {do something}

no, you need the $variable in $collection to have a variable in the {do something} section that is an object, not a counter

of course you could use this contruct too

foreach($sg){$_.name}

12:41 AM

so .. the answer is ... maybe :)

So what you're saying is that my understanding of foreach is whack. =)

@ScottPack I'd probably go with the M to be on the "safe side". But yeah, I can see where their chart is completely screwed.

foreach ($sg) {$_.name}

Missing 'in' after variable in foreach loop.

ah

oh right

Time to read some more about foreach. I thought I knew more than I do.

12:43 AM

while($sg){$_.name)

technet.microsoft.com/en-us/library/ee176828.aspx

@Holocryptic The hat I want comes in the color I want at L/XL, or a color I can be ok with at S/M. Hard choice. Technically, they both "fit". But the S/M is the only one that makes sense to fit.

@ScottPack Yuck. Order both; send one back.

On a completely unrelated note, Blizzard has a sysadmin job opening. I could cry. Both SE and Blizz have open positions, and I'm an unqualified lout. sigh maybe in a couple years...

@Holocryptic I might end up doing that. Oh the magic of Amazon Prime. My trip to the sporting goods this weekend will be the decider.

haha

@Zypher I thought I could get around it by > $sg=Get-StorageGroup | foreach {$_.name} but alas, I get no errors, but no output either. =/

12:58 AM

@Zypher Hmm, I think part of my confusion is that, in true MSFT obfuscation form, foreach the statement is different from foreach the cmdlet alias: poshoholic.com/2007/08/21/… poshoholic.com/2007/08/31/…

I did not know that differentiation.

ahh

So basically, for clarity, I'm thinking never use the foreach statement or alias. Use for or foreach-object.

hmm sure, although i'd say just use the foreach($item in $collection){} form

1:16 AM

Seriously though, get-member is my most used cmdlet EVAR =)

lol

oh i think it's everyones!

Man, I'm such a scripting neophyte.

Seeing an attribute hung off a method freaks me out.

ha, we all where there at one point

$_.getFiles().count

1:52 AM

Move-Item : Source and destination path must have identical roots. Move will not work across volumes.

LAME!

6:02 AM

G'day

@Zypher Yay for write only code

Anarko_Bizounours

6:30 AM

hi

theregister.co.uk/2011/08/04/vmware_vsphere_price_change

5

like chopper3 did said

7:05 AM

@Zoredache do you know what makes hostname report centos.lan rather than just centos for a machine called centos.lan ?

ITHedgeHog

7:35 AM

Morning

Morning

@Chopper3: slowclap - That's a hell of a climb down on the licensing. Someone over there has some good sense, it seems.

Chopper3

just lots of client pressure, though I was on the call when a guy I've known for years at barcap suggested the single-VM cap

Chopper3

7:52 AM

I can't pretend it's not a huge relief, it's been pretty much all I've worked on since the launch, which isn't really my job but I was glad to help in whatever way - I think things are much more 'win-win' now

It's so dark and dank here it could almost be December :(

Zoredache

@Iain, perhaps the machines name is actually 'centos.lan'

Have you tried changing the name. Use hostname <name> to set it.

I don't know where centos stores the host name configuration. On Debian I would look at /etc/hostname and /etc/hosts.

Maybe just grep /etc for centos.lan?

Anarko_Bizounours

8:18 AM

theregister.co.uk/2009/10/06/egyptians_uptight xDD

ITHedgeHog

8:30 AM

Well time to close down and hit the IDE - talk to you guys later.

9:00 AM

@Zoredache thanks /etc/sysconfig/network is relevant.

9:38 AM

@Iain: /etc/sysconfig/network-scripts/ifcfg-eth0 is useful, too. You can add a line: DHCP_HOSTNAME=<name> to make it register DNS names on DHCP (if you're using it).

@SmallClanger or DHCP_HOSTNAME=$(hostname)

2

Ooh, hadn't thought of that. (Been making my first foray into CentOS this week).

what have you used before that ?

Anarko_Bizounours

ubuntu?

I'm mostly Debian. Currently a mix of Lenny/Squeeze. I build them up from clean(ish) netinsts.

9:49 AM

the same but different springs to mind

Indeed. So far, CentOS is like London, to me. Lots of individual bits are familiar, but I still haven't joined them all up in my head, yet.