If you specify both the day of month and the day of week field, then cron will run the command when either of the fields match. In other words, there’s a logical OR relationship between the two fields.
Source: Schedule Cronjob for the First Monday of Every Month, the Funky Way, an article by Pēteris Caune.
The OpenBSD virtual machine daemon works pretty well with Linux VMs nowadays. This was time for me to see if I could replace the Synology Docker service with some Docker host provided by vmd(8).
Source: Running a Docker Host under OpenBSD using vmd(8), an article by Joel Carnat.
There's a question that always comes up when people pick up the Rust programming language: why are there two string types? Why is there
String, and&str?My Declarative Memory Management article answers the question partially, but there is a lot more to say about it, so let's run a few experiments and see if we can conjure up a thorough defense of Rust's approach over, say, C's.
Source: Working with strings in Rust.