What does the & symbol in powershell mean?

Question

$tool = \'C:\\Program Files\\gs\\gs9.07\\bin\\gswin64c.exe\'

& $tool -q -dNOPAUSE -sDEVICE=tiffg4 $param -r300 $pdf.FullName -c quit

Can someo

Answer 1

& is the call operator which allows you to execute a command, a script, or a function. For more details: &

Syntax
      & "[path] command" [arguments]

Example:

$LocalComputerName = & $ENV:windir\System32\HostName.exe

Also, if you use an IDE (such as PowerGUI) you can block it from opening a separate window when executing a secondary process:

& more
Start-Process "my_script.here"