Posted by jpluimers on 2025/06/11
Didn’t know nx had a scriptable RPN command-line calculator dc (for Desk Calculator) which does not seem to need white space characters in the input stream or input file.
It likely is a source for command-injection attacks given the question [Wayback/Archive] unix – How come is this command returning “GET A LIFE!”? – Stack Overflow, so I did a bit of digging and found this great platform:
Posted in *nix, *nix-tools, Development, Power User, PowerShell, Python, Scripting, Software Development | Leave a Comment »
Posted by jpluimers on 2025/05/29
Now that Python 2 has been dead for long enough (has it been unsupported for 5 years? yes it has: [Wayback/Archive] Status of Python Versions), it was finally time to change my alias for running a local web-server to serve files from a directory (:
So, from [Wayback/Archive] What is the Python 3 equivalent of “python -m SimpleHTTPServer” – Stack Overflow (thanks [Wayback/Archive] ryanbraganza, [Wayback/Archive] k.avinash and [Wayback/Archive] Petr Viktorin):
python -m http.server 8000, it will start the server on port 8000
Docs with the migration hints: [Wayback/Archive] 20.19. SimpleHTTPServer — Simple HTTP request handler — Python 2.7.18 documentation
Posted in *nix, *nix-tools, bash, Batch-Files, Development, Power User, Python, Scripting, Software Development | Leave a Comment »
Posted by jpluimers on 2025/05/16
Trying to trim down excessive CPU usage of my web browsers, and lessen the risk of intrusion, I experimented with globally disabling JavaScript and only enabling it on sites where it adds value to me.
That is possible (see below), but immediately showed a big side effect: Bookmarklets will not work on sites that have JavaScript disabled.
Disabling JavaScript globally only allows Bookmarklets on sites where you have enabled JavaScript. Not the situation I hoped for (:
I’ll try it for a while though.
Posted in Bookmarklet, Chrome, Chrome, Development, Firefox, Google, JavaScript/ECMAScript, Power User, Scripting, Software Development, Web Browsers, Web Development | Leave a Comment »
Posted by jpluimers on 2025/05/13
For my reading list, the various responses to [Wayback/Archive] Julia Evans on Twitter: “is there an easy way (in the browser, at runtime) to generate a call graph of which functions called which other functions in a javascript program?”
--jeroen
Posted in Development, JavaScript/ECMAScript, Scripting, Software Development, Web Browsers, Web Development | Leave a Comment »
Posted by jpluimers on 2025/05/02
Quite a while ago, Chrome moved from a structure based on “Current Session“, “Current Tabs“, “Last Session” and “Last Tabs” into “Session_#################” and “Tabs_#################” stored in a “Sessions” folder (and similar migrations for other state and configuration files).
The numbers in the “Session_*” and “Tabs_*” files are time stamps of those sessions, for instance one needs to figure out what the “13310808970819630” in “Session_13310808970819630” and “Session_13310808970819630” means.
Lot’s of web-pages with tips and tricks around the old structures are still around, often surfacing high in Google Search results.
I was interested in a particular trick to export Google Chrome browsing history and had a hard time figuring out the easiest solution.
Posted in Apple, Batch-Files, Chrome, Chrome, Database Development, Development, Google, JavaScript/ECMAScript, Mac OS X / OS X / MacOS, NirSoft, Polyglot, Power User, Scripting, SQLite, Web Browsers, Windows, Windows 10, Windows 11 | Tagged: define | Leave a Comment »
Posted by jpluimers on 2025/05/01
Back when I observed the Google Search sei parameter which I hadn’t seen before yet, I bumped into [Wayback/Archive] GitHub – randomaccess3/googleURLParser: parser for Google search strings
It covers a truckload of parameters, including the sei one, which isn’t as new as I thought, as it was at least 2017 old: [Wayback/Archive] [Neat URL] Yet another Google parameter… · Issue #25 · Smile4ever/firefoxaddons · GitHub
Links referred from the parser tool for further reading:
Posted in Development, Google, GoogleImageSearch, GoogleSearch, Perl, Power User, Python, Scripting, Software Development | Tagged: 25 | Leave a Comment »
Posted by jpluimers on 2025/04/30
More on the reason why I learned a few SQLite things soon, but for my link and documentation archive, below is what I learned.
Most commands use the database file C:\temp\History which has no extension as that is how I got the file in the first place (spoiler: it’s a Chrome browser History from one of my user profiles).
Let’s get started:
Posted in *nix, *nix-tools, bash, CommandLine, Conference Topics, Conferences, Console (command prompt window), Database Development, Development, Event, Power User, PowerShell, PowerShell, Software Development, SQL, SQLite | Leave a Comment »
Posted by jpluimers on 2025/04/28
In the past, I used to modify /etc/sysconfig/named and add entries to the NAMED_CONF_INCLUDE_FILES setting, then run /usr/share/bind/createNamedConfInclude
to generate /etc/named.conf.include.
As of OpenSuSE 15.4, /usr/share/bind/createNamedConfInclude has become an empty file and NAMED_CONF_INCLUDE_FILES got removed and NAMED_INITIALIZE_SCRIPTS introduced.
So now I changed my playbooks to manually generate /etc/named.conf.include and include it form /etc/sysconfig/named.
Since I hardly perform these new installations, it took a few years for me to find out about this change. Upgrading existing systems somehow kept the generated file and included it.
Related links with quotes as it was hard to find out what changed and how to work around and I wasn’t the only one bump into issues:
Posted in *nix, *nix-tools, bash, bash, bind-named, Development, DNS, LEAP, Linux, openSuSE, Power User, Scripting, Software Development, SuSE Linux | Tagged: include | Leave a Comment »
Posted by jpluimers on 2025/04/23
A while ago, I needed to investigate reboot events on some Windows 10 systems. I wanted to use the console instead of the eventvwr GUI Event Viewer.
There is a tool for that called wevtutil which – like eventvwr – uses XPath query parameters and produces XML output.
Postprocessing XML can be a thing, but since .NET has great XML support, you can use PowerShell for that (which for me often is way easier than going the XSLT route, for instance because Windows lacks built-in console XSLT tooling).
Based on the help and the below links, my query command then on these machines turned out to be this: Read the rest of this entry »
Posted in Batch-Files, CommandLine, Development, PowerShell, PowerShell, Scripting, Software Development, XML, XML/XSD, XPath, XSLT | Leave a Comment »
Posted by jpluimers on 2025/04/17
From a quite a while back; apparently it ended up in the drafts in stead of the blog queue:
[Wayback/Archive] Ian Miell on Twitter: “A signal of the future WebAssembly/emscripten is giving us: a database served on a static web page: … The possibilities are dizzying. Also, I’ve thought for a while that if I had to put money on it, SQLite will outlast every other database out there.”
The combination of Emscripten and WebAssembly is cool as it allows you to run C/C++ based code in most Web Browsers at near-native speed (though the standard is open and can just as easily outside that realm).
[Wayback/Archive] Hosting SQLite databases on Github Pages – (or any static file hoster) – phiresky’s blog:
Posted in Assembly Language, Database Development, Development, JavaScript/ECMAScript, Scripting, Software Development, SQLite, Web Development, WebAssembly | Leave a Comment »
The Wiert Corner - irregular stream of stuff 