Listing 2: GetHostsFileSize.bat

@Echo Off

:: BEGIN COMMENT
:: This script expects to find a list of nodes in a file named InputList.txt.
:: This text file needs to be in the same path as the script.
:: END COMMENT
Call :GetFileNames %0
@Title %MyTitle%
For /F "usebackq tokens=1" %%i in ("%InList%") Do (Set Node=%%i)
  & (Call :GetSz)
Goto :EOF

:GetSz
Set Sz=
If Not Exist "\\%Node%\C$" Echo %Node%, C$ N/A >>"%Log%"& Goto :EOF
:: BEGIN CALLOUT A
For /F "tokens=3" %%i in ('Dir \\%Node%\C$\Windows\system32\drivers\etc\hosts
  2^>NUL ^| find /I "File(s)" ') Do Set Sz=%%i
:: END CALLOUT A

If Defined Sz Echo %Node%, %Sz%>>"%Log%"& Goto :EOF
Echo %Node%, N/A>>"%Log%"
Goto :EOF

:GetFileNames
Set MyTitle=%~nx1
Set InList=%~dp1InputList.txt
Set Log=%~dpn1-LOG.txt
Goto :EOF