Here’s one that’s short and sweet. A lot of programs exist for the sole purpose of taking a screen shot after a certain amount of time. For example, delay for 10 seconds before taking a screen shot so that you have the time to open some menus.
This is incredibly simple with PowerShell:
Add-Type -Assembly System.Windows.Forms
Sleep 10
## Capture the entire screen
[System.Windows.Forms.Sendkeys]::SendWait( …In PowerShell V2, we added a bunch of computer management cmdlets:
Read morePS >Get-Command -Noun Computer | Format-Table -Auto
CommandType Name Definition
-———- —- ———-
Cmdlet Add-Computer Add-Computer [-DomainName] <String> [-Credent
Cmdlet Checkpoint-Computer Checkpoint-Computer [-Description] <String> [
Cmdlet Remove-Computer …
I don’t like to post line noise very often, but I did break that exception in the Holiday Wishes post a few weeks ago. I hate quoting entire blog posts, but, 177 characters isn’t too bad:
'(18029799997931744,139752119745773792|%{"{0,60}"-f [Convert]::ToString($_, 2).Replace("0"," ")})-split''(.{12}|Mh)''|?{$_}'|%{iex $_;-join[char[]]$_[[char[]]"nOBB7[4oBCaenRa"]} …'(18029799997931744,139752119745773792|%{"{0,60}"-f
[Convert]::ToString($_, 2).Replace("0"," ")})-split''(.{12}|Mh)''|?{$_}'|
%{iex $_;-join[char[]]$_[[char[]]"nOBB7[4oBCaenRa"]}
Marcel has been posting some interesting articles on using PowerShell to generate the MD5 hashes of files. Now, an MD5 hash of a file is just an array of bytes. Typical hashing programs display this in a more friendly manner:
PS:15 C:\Temp >md5sum 71-59-B7.bmp
a05805e638741bb767f97c0e88962952 *71-59-B7.bmp
Although the output of Marcel’s scripts could definitely be crafted to display this output, they currently …
Read moreWhen you’re writing a script that depends on PowerShell Remoting, it’s often helpful to know that the remoting channel is open and will support the activities of your script.
PowerShell has a Test-WSMan command, but that only verifies that a WSMan connection is possible. There are other scenarios you could be impacted by:
Over the past few years, Pumpkin carving in my family has somehow ended up focusing on two themes: Math, and Knitting.
A Sierpinski Triangle – which surprisingly only took a toothpick or two to repair isolated triangles:
Sierpinski Carpet (along with a wee bit of evil, of course:)
Not being one to cut 64 of the level-three squares by hand, a cordless drill came in extremely handy.
Mandelbrot, and Koch snowflake: …
Read moreOne thing you might notice if you have an iPhone connecting to an Inbox via the IMAP protocol is that messages you delete tend to stick around when viewed from other devices (such as Outlook, Outlook Web Access, etc.)
This is caused by an out-of-date view of mail management, where your Inbox handles everything. When you delete an item, some IMAP clients (such as the iPhone) mark them as deleted, but don’t actually …
Read more[Edit: This function has been improved and added to the PowerShell Cookbook module. Get it from the PowerShell Gallery.]
Awhile back, I introduced a script that allows you interact with remote TCP ports (such as Telnet.) While useful, it worked only interactively. It would be even more useful if you were able to script a network or TCP connection. Let me introduce Send-TcpRequest.ps1 v2, which allows exactly that: …
Read moreWhen playing with cryptography challenges (don’t we all?,) you end up leaning on a bunch of common tasks. For example, substituting all text in a string with a set of replacements (substitution ciphers,) XORing strings together, applying dictionary-based algorithms, investigating word frequency, and more.
PowerShell lends itself really well to these challenges, and I’ve developed a small cryptography library along the …
Read more