<p>Saw these variables in the debugger and I'm not sure what they do.</p>

<ul> <li> <code>$_</code> The current pipeline object; used in script blocks, filters, the process clause of functions, where-object, foreach-object and switch</li> <li> <code>$^</code> contains the first token of the last line input into the shell</li> <li> <code>$$</code> contains the last token of last line input into the shell</li> <li> <code>$?</code> Contains the success/fail status of the last statement</li> </ul> <p>Source: http://www.computerperformance.co.uk/powershell/powershell_variables.htm#%24Dollar_variables_</p>

What does $$, $?, $^ represent in powershell?

1 Answers

$_ The current pipeline object; used in script blocks, filters, the process clause of functions, where-object, foreach-object and switch
$^ contains the first token of the last line input into the shell
$$ contains the last token of last line input into the shell
$? Contains the success/fail status of the last statement

Source: http://www.computerperformance.co.uk/powershell/powershell_variables.htm#%24Dollar_variables_