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Sharing linux/windows scripts and tips
September 15, 2018 — Jesse Harris
Powershell 6.1.0 dropped yesterday. Here is my quick look.
Get-Command | Measure-Object on each version:
Version 6.0.4 had 316 commands, while 6.1.0 has 323 commands. Comparing a list of commands:
On 6.0.4: gcm | select -exp name > 6.0.4.txt and the same on 6.1.0, then to compare:
compare-object (gc ./6.0.4.txt) (gc ./6.1.0.txt)
InputObject SideIndicator
----------- -------------
ConvertFrom-Markdown =>
Get-ExperimentalFeature =>
Get-MarkdownOption =>
Set-MarkdownOption =>
Show-Markdown =>
Start-ThreadJob =>
Test-Connection =>
Test-Json =>
more <=
~~~
Firstly, yay for Test-Connection. I had to reimplement that one by parsing results from ping previously to make some of my windows modules work on PS core. Start-ThreadJob looks interesting and I can't wait to see what the Markdown cmdlets do.
I'll look more at these new commands later, but while I was running Get-Command, I thought I'd see if there were any generic performance improvements in 6.1.0 release.
On 6.0.4:
PS /home/harrisj> measure-command {gcm | select -exp name}
Days : 0
Hours : 0
Minutes : 0
Seconds : 0
Milliseconds : 718
Ticks : 7185832
TotalDays : 8.31693518518518E-06
TotalHours : 0.000199606444444444
TotalMinutes : 0.0119763866666667
TotalSeconds : 0.7185832
TotalMilliseconds : 718.5832
On 6.1.0:
PS /home/harrisj> measure-command {get-command | select -exp name }
Days : 0
Hours : 0
Minutes : 0
Seconds : 0
Milliseconds : 455
Ticks : 4558407
TotalDays : 5.27593402777778E-06
TotalHours : 0.000126622416666667
TotalMinutes : 0.007597345
TotalSeconds : 0.4558407
TotalMilliseconds : 455.8407
A modest speed boost. Definitely appreciated on the old RPI 2 that hosts this site.
I gave this a quick try and it colour highlighted and shows a preview of the markdown in the terminal window. It also had a -UseBrowser parameter which writes a tmp html and open's it in the browser. Pretty neat.
What you'd expect, this converts a Markdown file to html to stdout or to a file if specified. Who knows, I might see if I can get this site to work using this implementation of Markdown. Currently I'm using the Markdown.pl from Gruber.
Does nothing on the RPI and MacOS. Will have to spin this up on Windows and update this article
Just ran this over a json file I use in one of my projects:
Test-Json -Json (gc ./Template.json -raw) True
This might take a bit more time to find the true value of it, but I quickly tried my simultaneous ping test with this and it spawned a number of PSJobs with a PSJobTypeName of ThreadJob.
Thats it for now. I've heard this release focused alot on bringing Windows cmdlets back for Windows, so not-so-much in this one for the \*nixes. Still an improvement either way
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