windows - Simple ForEach Combined with If Statment brings wrong results -

im new ps, im trying perform simple task, list of computers using get-content, though foreach loop perform wmi query each device in list , os type, if statment check perform different task depends on os, everntually win vista 7 8 10 needed seperated xp. wrote following ps script :

$computers=get-content c:\computerlist\computers.txt  $ostype=get-wmiobject -class win32_operatingsystem -namespace "root\cimv2" -computername $computers     foreach ( $compdevice in $computers ) {  if ( $ostype.buildnumber -eq "2600*" ) {  write-host $compdevice"'s os type xp" }  else  {  write-host $compdevice"'s os type newer xp"   }    } 

in case same result computers ( im running secret againt 2 win xp 1 win 7 , 1 win 8 in domain envierment.

i've tried different variation :

$computers=get-content c:\computerlist\computers.txt  $ostype=get-wmiobject -class win32_operatingsystem -namespace "root\cimv2" -computername $computers     foreach ( $compdevice in $computers ) {  if ( $ostype.buildnumber -eq "2600*" ) {  write-host $compdevice"'s os type xp" }  else  {  write-host $compdevice"'s os type newer xp"   }    } 

in both cases exact same results ( goes 1 option of if statement )

i wonder, doing wrong ? note - trying filter caption, buildnumber , version. , wild card in if statement, doesn't work

a couple of things wrong. first, have captured wmi content array not have relation of data computername. if include wmi lookup inside foreach loop, have relationship established. in other words:

$computers=get-content c:\computerlist\computers.txt   foreach ( $compdevice in $computers ) {  $ostype=get-wmiobject -class win32_operatingsystem -namespace "root\cimv2" -computername $compdevice  ### using '-eq' should provide actual number, use * -like operator if ( $ostype.buildnumber -eq "2600" ) { ...