systemd Basics: Services, Units, and Timers
A practical introduction to systemd: manage services with systemctl, write a unit file, read journal logs, and replace cron with a timer.
Linux
3 articles filed under Linux.
Linux File Permissions: chmod, chown, and umask
Learn to read ls -l output and use chmod, chown, and umask correctly, plus setuid, setgid, and sticky bits and the mistakes to avoid.
Linux Terminal Essentials Every Developer Needs
The handful of terminal commands and shortcuts I use every day for navigating, searching, piping output, and managing jobs on Linux.