Daniel Perelman
The problem# I had a script where at some point a program I did not directly control would create a file, but I wanted that file's permissions to be different than those it got created with. The simple solution was to run chmod in a loop waiting for it to succeed with a short sleep delay between...
Daniel Perelman
The problem# I was working on a bugfix for a GUI application I use, but I didn't want my development to interfere with the instance I was actually running. The application stores state that I didn't want to be modified by the in-development code in a few different places (data, settings, cache)...
Daniel Perelman
The problem# I use Ubiquiti-branded network products for my switches and wireless access points and use the UniFi Network controller software to configure them.1 I noticed the web interface wasn't working and checked the status the service and saw the logs showed it starting the service and no...
Daniel Perelman
The problem# Previously, I wrote about using named pipes for IPC to allow controlling a process by another process running on the same computer possibly as a different user, with the access control set by file permissions. But I observed that the restricted unidirectional communication mechanism...