Vista - Script switch parameter as variable

I am trying to run a script using saved parameters and the switch
parameters do not seem to be interpreted correctly when they are
strings. Any ideas for a (good) way to do this?

The contents of script1.ps1
param([switch]$overwrite)
if ($overwrite) {"Found overwrite."}

Here is my simplistic testing. I would really like to see the
overwrite switch detected when used with a variable.

PS C:\> .\script1.ps1 -overwrite
Found overwrite.
PS C:\> .\script1.ps1 $argument
<No output>
PS C:\> .\script1.ps1 "-overwrite"
<No output>

Try this:

param([switch]$overwrite = $false)I know it looks strange, but it seems to work.


"ewannema@xxxxxx" wrote:

Hello ewannema@xxxxxx,

Your first exmaple is the way to use switch parameters, ask if the param
exists (which is equivalent to $true):

param([switch]$overwrite)
if ($overwrite) {"Found overwrite."}


To assign $flase value, use:

.\script1.ps1 -overwrite:$false





---
Shay Levy
Windows PowerShell MVP
http://blogs.microsoft.co.il/blogs/ScriptFanatic
PowerShell Toolbar: http://tinyurl.com/PSToolbar

If you set the param default to $false, then it behaves like a switch
parameter to the script, which seems to be what he's after.

If the parameter name is included when the script is run, then a switch
object set to $true will be passed to the script, otherwise the script will
create one, set to $false.

"Shay Levy [MVP]" wrote: