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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for the ‘*nix’ Category

PowerShell on Mac OS X and other non-Windows systems

Posted by jpluimers on 2018/07/17

I wasn’t expecting it to be so easy to install PowerShell on Mac OS X:

brew install Caskroom/cask/powershell

In the background it executes this script: which indirectly goes through the URL template{version}/powershell-#{version}.pkg.

On other non-Windows systems, you have to go through GitHub yourself: The PowerShell team at Microsoft has many more repositories including the Win32-OpenSSH port which you can find through

At the time of writing, PowerShell was available for these platforms:

Platform Downloads How to Install
Windows 10 / Server 2016 (x64) .msi Instructions
Windows 8.1 / Server 2012 R2 (x64) .msi Instructions
Windows 7 (x64) .msi Instructions
Windows 7 (x86) .msi Instructions
Ubuntu 16.04 .deb Instructions
Ubuntu 14.04 .deb Instructions
CentOS 7 .rpm Instructions
OpenSUSE 42.1 .rpm Instructions
Arch Linux Instructions
Many Linux distributions .AppImage Instructions
macOS 10.11 .pkg Instructions
Docker Instructions

The first version I installed on Mac OS X was this: ==> Downloading

By now I really hope it is out of Alpha state.



Posted in *nix, Apple, CommandLine, Development, iMac, Linux, Mac, Mac OS X / OS X / MacOS, MacBook, MacBook Retina, MacBook-Air, MacBook-Pro, MacMini, openSuSE, Power User, PowerShell, PowerShell, Scripting, Software Development, SuSE Linux, Ubuntu | Leave a Comment »

How I made my own VPN server in 15 minutes | TechCrunch

Posted by jpluimers on 2018/07/13

People are (rightfully) freaking out about their privacy as the Senate voted to let internet providers share your private data with advertisers. While it’s important to protect your privacy,…

Interesting: easy setup allows for creating disposable VPN servers.


Posted in *nix, IPSec, Network-and-equipment, Power User, VPN | Leave a Comment »

btrfs free space. It’s complicated. Still.

Posted by jpluimers on 2018/07/09

Everytime a btrfs based volume runs out of space, I’m reminded of these:

There are a few scripts that help you assess quota usage. If you think they are wrong, then you need to btrfs quota rescan / which tells you that it started, but won’t tell when it’s finished (nor wil journalctl -xe a.k.a. journalctl --catalog --pager-end), but dmesg does:

# dmesg | grep qgroup
[ 316.608122] BTRFS info (device sda2): qgroup scan completed (inconsistency flag cleared)

For now I’ve this quick script to start investigation:

~/Versioned/btrfs-du/btrfs-du && df -h | grep "\/$\|^[^\/]" && btrfs quota rescan -s /

It assumes there is quota on the root (enable with btrfs quota enable /) and is based on my fork The df will limit itself to the root (trailing / matched by \/$) or disks not mounted from / (matched by ^[^\/]).


References (not solutions):

Read the rest of this entry »

Posted in *nix, btrfs, File-Systems, Linux, openSuSE, Power User, SuSE Linux | Leave a Comment »

Online markup conversion from markdown to mediawiki: pandoc

Posted by jpluimers on 2018/07/06

Since Mediawiki needs an extension to display Markdown, and many MediaWiki installations do not have that extension, I was looking for an online conversion from markdown to MediaWiki markup.

Luckily the Pandoc try has this conversion: [WayBack] Try pandoc! Markdown(pandoc) -> MediaWiki

These links helped me get there:


Posted in *nix, *nix-tools, Development, Lightweight markup language, MarkDown, MediaWiki, pandoc document converter, Power User, Software Development | Leave a Comment »

Acer B326HK – not finding a signal when the linux host wakes up out of sleep

Posted by jpluimers on 2018/07/02


6 unlabeled buttons: I can not force the input to display port and monitor is searching other ports when host is sleeping. Getting no output when I wake up the host. 😞

Btw, this is for an Acer B326HK monitor. Other than issues with the UI, seems like a decent 4k monitor.


my mistake was to use Display Port (Choice was DP or DVI) and the workaround is to disable power state changes on Display Port with something like “xset -dpms

Source: [WayBackThis could have been an April fool’s joke: telepathic monitor controls… – Grant Grundler – Google+


Posted in *nix, Power User | Leave a Comment »

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