Category Archives: Hakre's Tips

Expect more from you Linux Command Line

Posted on 24 Nov 2019 by hakre

Just stumbled over two nice written articles about command line usage on Linux by Robert Elder: Don Libes’ Expect: A Surprisingly Underappreciated Unix Automation Tool (Dec 2016; by Robert Elder) An Introduction To Data Science On The Linux Command Line (Oct … Continue reading →

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Docker Run without “docker run”

Posted on 23 Oct 2019 by hakre

So there was this one question on Stackoverflow in which the OP was linking an .htaccess tester for Mod-Rewrite-Rules. Despite this being all fine I was asking myself what about really(tm) testing this? So I remembered the rewrite-log from the … Continue reading →

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Speedpills 4 Linting PHP Files in Parallel

Posted on 20 Oct 2019 by hakre

Quite some time ago I’ve already written about linting PHP files in the shell / build. Even though parallel linting is fine, when the code-base is growing larger and larger, the build becomes slower and slower. A slow build sucks. … Continue reading →

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Sed Cheatsheet

Posted on 10 Apr 2019 by hakre

Just a post about some of the sed lines I find scattered, to be extend in future edits. Merge same Lines Together $ sed ‘/^ \*$/{h;d};{H;s/.*//;x;s/^\n//}’ This sed example merges all “ *” lines that follow each other (e.g. empty … Continue reading →

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Gnome Shell Quickfix Cheatsheet

Posted on 7 Apr 2019 by hakre

Disable work-space up/down movers which block key bindings I use in Phpstorm. Important with that is that I don’t use these dynamic work-spaces at all, so making them static and only one: dconf write /org/gnome/desktop/wm/preferences/num-workspaces 1 dconf write /org/gnome/mutter/dynamic-workspaces false … Continue reading →

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Git – Set the Author Date to The Committer Date of a Recent Commit

Posted on 1 Apr 2019 by hakre

Ah gosh that one commit has the author date just too far off, but if it would be the same as the committer date, that would be fine… Locate the commit when rebase interactively and mark for edit. Then go … Continue reading →

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Install / Update Dbeaver Community on Ubuntu

Posted on 27 Feb 2019 by hakre

Update: Turns out I was too eager to get the command line running. While it’s fine to have it perhaps for some systems, it is actually the case that Dbeaver has both a Debian repository and an Unbuntu PPA as … Continue reading →

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Hunting the Keyboard Shortcut

Posted on 3 Dec 2018 by hakre

Recently while in the mood I decided to upgrade my Thinkpad X280  from Ubuntu 16.04 LTS (for which it had the approval) to more current Ubuntu 18.04 LTS. That also meant that I’m back on Gnome Shell which I’m not … Continue reading →

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Using Assertions with (Legacy) PHP Code

Posted on 4 Sep 2017 by hakre

While it was not much advised to use assertions (the assert PHP language construct) prior to PHP 7 due to the fact that it actually eval’ed a string’ed code, these days are gone. This is probably a lesser known fact with … Continue reading →

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Lazy Loading in PHP Object Composition

Posted on 15 Aug 2017 by hakre

When it comes to nicely performing PHP scripts (yes in PHP these are all scripts as PHP code is run-time) there is a nice addition since PHP 7 named the Null coalescing operator which plays very well with the basic nature … Continue reading →

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Linting PHP Files in Parallel on Travis

Posted on 10 Nov 2015 by hakre

With PHP 7 around the corner here is a small tip how you can at least lint the code in your project to be PHP 7 syntax compatible. That allows you to easier obtain forward-compatible PHP code with ease. So … Continue reading →

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The SimpleXMLElement Magic Wonder World in PHP

Posted on 27 Mar 2015 by hakre

PHP’s Simplexml ships with a lot of magic to simplify access to an XML documents element and attribute node values. Some criticize this and suggest to use the DOM library instead. The DOM library on the other hand, even it … Continue reading →

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Kubuntu Default Browser

Posted on 17 Mar 2015 by hakre

The system-settings don’t reflect the whole picture in Kubuntu. Settings can be done via the command-line. Here exemplary to chromium: I had an issue with this for quite some time, I finally found the answer via “opening web link from … Continue reading →

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Installing PDF Printer under Kubuntu with AppArmor and Samba

Posted on 9 Feb 2015 by hakre

It actually should be as little as installing cups-pdf (CUPS-PDF (Ubuntuusers German)): Then opening Printers in system preferences did show the new printer. However printing a test-page didn’t work. I then just followed the tail of the syslog: to find … Continue reading →

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Hide Folders in PhpStorm Project Pane

Posted on 6 Feb 2015 by hakre

How can I hide a directory in a PHPStorm project, for example .sass-cache I just asked myself this morning. Searching online didn’t reveal it to me and there are numerious options that were close but not about hiding the directory … Continue reading →

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Download NextGen Gallery WordPress Gallery with Wget

Posted on 30 Jun 2014 by hakre

For a gallery download with Wget made by NextGen Gallery (at least this is what I read from then nggpage=2 query string), I had success with: My example gallery with with all jpeg files. The switches are documented in the … Continue reading →

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Commandline Source Fixes Foo

Posted on 20 Jun 2014 by hakre

From time to time I need to cleanup source trees. Today I needed to do that again, here are some command liners to get some work done. If you’re on Windows, all you need to do to get these running … Continue reading →

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Composer Clear Cache

Posted on 27 May 2014 by hakre

It’s one of the best kept secrets of popular PHP dependency manager Composer: How to flush composers cache. You normally don’t need it, however if you create some composer.json and you want to put it to a test, this can … Continue reading →

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XPath Null Byte Injection in PHP

Posted on 26 Dec 2013 by hakre

Back in July this year, in Mitigating XPath Injection Attacks in PHP I was writing about how to properly quote a string in PHP’s Xpath 1.0. The code presented there was based on the assumption that the resulting expression is … Continue reading →

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The Negative Influence of WordPress on PHP

Posted on 31 Jul 2013 by hakre

The current The TIOBE Programming Community Index for July 2013 shows an increase for PHP, gaining grounds fast and as an ongoing trend over the last year: If compared to January 2013, PHP is the fastest climber with an increase … Continue reading →

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