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need to read an XML file and make an IF decision

Bill Smith

December 22, 2020 20:16

in a deployment package, trying to figure out a way to check the contents of a specific .xml file on the hard drive of the target PC and IF a certain string matches then abort the install ELSE proceed to delete/re-install the application, something like this batch file, but not sure best way to read xml into memory to parse it and make a decision on it:

IF EXIST "c:\dassaultsystemes\C214"

somehow read "c:\dassaultsystemes\C214\sftmgt\install.xml" file into memory

(
IF install string matches "V6R2103xE.HF9"

Exit 2
write-output "C214 already installed successfully, exiting"

ELSE

ren "c:\dassaultsystemes\C214" "c:\dassaultsystemes\C214_OLD"

timeout /t 10 /nobreak

rmdir "c:\dassaultsystemes\C214_OLD"

Exit 0
write-output "bad C214 install removed, proceeding with new install"
)

ELSE

Exit 0
write-output "proceeding with initial install"

Comments

2 comments

Dagannoth Rex

January 05, 2021 16:30

I recommend using PowerShell, it can read XML files.

It would look something like this:

[XML]$C214 = Get-Content "c:\dassaultsystemes\C214"
if ($C214.install_string -eq "V6R2103xE.HF9") {
    Write-Output "C214 already installed successfully, exiting"
}

Bill Smith
January 05, 2021 19:44

thx, i'll try that but did get this working as well:

{
$result = Select-String -path "C:\DassaultSystemes\C214\SftMgt\Install.xml" -pattern "V6R2013xE.HF9" -SimpleMatch
if ( $result.count -gt 0 )
{
Write-Output "C214 already installed successfully, exiting install package"
exit (2)
}

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