July 2006 | Page 2 of 2

Variable expansion in strings and here-strings

PowerShell TeamJuly 15, 2006Jul 15, 200607/15/06

PSMDTAG:FAQ: What is the difference between single quoted and double quoted strings? ANSWER: Double quoted string expand variables and single quoted strings do not. Example: PS> $x="TEST"PS> "This is a $x"This is a TESTPS> 'This is a $x'This is a $x PSMDTAG:FAQ: How do variables expand in strings? PSMDTAG:FAQ: Why d

Cascading Type Casts

PowerShell TeamJuly 15, 2006Jul 15, 200607/15/06

A user on the newsgroup wondered whether the example below highlighted a bug or a feature. They applied multiple type declarations on a single parameter and Windows PowerShell did not complain. function check { param([string] [int] $y = 0, $x = 0)###^^^^^^^^^^^^ $x.GetType().ToString(); $y.GetType().ToString(); $

HanselMinutes Podcast on Advanced Windows PowerShell

PowerShell TeamJuly 12, 2006Jul 12, 200607/12/06

Check out Scott Hanselman's podcast on Advanced Windows PowerShell at: http://hanselminutes.com/default.aspx?showID=33 Scott really "gets" PowerShell and has a fantastic way of communicating it. With V1.0, Windows PowerShell delivers a VERY powerful engine but it gets presented to the world through a command con

Indirectly Invoking Methods Via Variablenames

PowerShell TeamJuly 12, 2006Jul 12, 200607/12/06

PSMDTAG:FAQ: Can I specify a methodname using a variable? e.g. $x.$y() PSMDTAG:FAQ: Why do I get METHOD metadata when I specify a method without providing parentheses? One of the great things about Windows PowerShell is that it is a latebound language which allows you to do all sorts of incredibly powerful operations. Consider the follo

Type Shortcuts

PowerShell TeamJuly 12, 2006Jul 12, 200607/12/06

PSMDTAG:FAQ: What is a TYPE SHORTCUT?PSMDTAG:FAQ: What are the TYPE SHORTCUTS? Type shortcuts are a Windows PowerShell feature that allows you to reduce the amount of typing you have to do when specifying a type. For example, the following 2 statements produce the same result: [System.Text.RegularExpressions.Regex]"^c.*" [

Are ScriptBlock parameters implemented for functions?

PowerShell TeamJuly 7, 2006Jul 7, 200607/7/06

PSMDTAG:FAQ: Are ScriptBlock parameters implemented for functions? Not in V1. Functions do not use the same parameter binding mechanism as Cmdlets. This is something we intent to address in a future release. -- Jeffrey Snover [MSFT]Windows PowerShell ArchitectMicrosoft CorporationThis posting is provided "AS IS" with no warra

Revisiting: Listing all the COM automation PROGIDs

PowerShell TeamJuly 6, 2006Jul 6, 200607/6/06

In the blog entry Listing all the COM automation PROGIDs http://blogs.msdn.com/powershell/archive/2006/06/29/650913.aspx . I showed how you could use the registry to get all the progids that you can use for COM automation. Here is a way to do the same thing via WMI (which allows you to do it to remote machines): Get-WMIObject Win32_ProgID

How can a script tell what directory it was run from?

PowerShell TeamJuly 6, 2006Jul 6, 200607/6/06

PSMDTAG:FAQ: How can a script determine what directory it was invoked from?PSMDTAG:FAQ: What is $MyInvocation?PSMDTAG:FAQ: Why is $MyInvocation.ScriptName empty? Create 2 scripts (First.PS1 and Second.PS1) to explore what is going on with $MyInvocation and how you can use it to determine what directory a script was invoked from: PS> cat fir

Use of Preference Variables to control behavior of streams

PowerShell TeamJuly 4, 2006Jul 4, 200607/4/06

PSMDTAG:FAQ: Why don't I see output when I use Write-Verbose and Write-Debug?PSMDTAG:SHELL: Use of Preference Variables to control behavior of streams. In Windows PowerShell, the WRITE-XXX cmdlets merely sends things to a Named stream. You then have user-defined preferences for what to do when things appear on that stream. Alex Ang

Perserving Command History Across Sessions

PowerShell TeamJuly 1, 2006Jul 1, 200607/1/06

<Edited 7/2/2006 to add tags and Categories> Ben Winzenz didn't like the fact that Windows PowerShell did not maintain history lists between sessions (http://winzenz.blogspot.com/2006/06/cool-mshpowershell-tidbit.html) . We hear you Ben. Back to my least favorite phrase, "to ship is to choose". That said, we

PowerShell

July 2006 | Page 2 of 2 | PowerShell

Variable expansion in strings and here-strings

Cascading Type Casts

HanselMinutes Podcast on Advanced Windows PowerShell

Indirectly Invoking Methods Via Variablenames

Type Shortcuts

Are ScriptBlock parameters implemented for functions?

Revisiting: Listing all the COM automation PROGIDs

How can a script tell what directory it was run from?

Use of Preference Variables to control behavior of streams

Perserving Command History Across Sessions

Relevant Links

Top Bloggers

Archive