I want to use a powershell variable for a cmd argument but I don't know how to make it.
function iptc($file)
{
$newcredit = correspondance($credit)
$cmd = '& C:\exiftool\exiftool.exe -S -t -overwrite_original -Credit=$newcredit $file.FullName'
Invoke-Expression $cmd
}
For example newcredit can be "James" but in my case when I run the command -Credit will only be "$newcredit".
Regards
Single quotes (' ') do not expand variable values in the string. You can address this by either using double quotes (" "):
$cmd = "& C:\exiftool\exiftool.exe -S -t -overwrite_original -Credit=$newcredit $file.FullName"
Or, by the method I most often use, by using string formatting:
$cmd = '& C:\exiftool\exiftool.exe -S -t -overwrite_original -Credit={0} {1}' -f $newcredit, $file.FullName
If either of the parameters has a space in it then the parameter will need to be surrounded by double quotes in the output. In that case I would definitely use string formatting:
$cmd = '& C:\exiftool\exiftool.exe -S -t -overwrite_original -Credit="{0}" "{1}"' -f $newcredit, $file.FullName
+ CategoryInfo : ParserError: (:String) [Invoke-Expression], IncompleteParseException + FullyQualifiedErrorId : TerminatorExpectedAtEndOfString,Microsoft.PowerShell.Commands.InvokeExpressionCommand