Here are the most popular Linux questions I see (and use) during DevOps interviews. 1:11 - Basic Linux Interview Questions (ssh, ls, cd, cp, pwd, rsync, systemctl, df, du, ip addr, ip route) 4:55 - Slightly more advanced Linux (init, systemd, systemctl, journalctl, some linux philosophy, /proc filesystem) 8:01 - open-ended questions and troubleshooting (top/atop/htop/glances, lsof, /proc, ss or netstat, inodes) 11:05 - discussing past projects, planning a hypothetical implementation/project Step-by-step project-based Linux course for beginners: https://www.udemy.com/course/hands-on-linux-self-hosted-wordpress-for-linux-beginners/?referralCode=19C0A7DEE2FD53C9C09D Free Linux Sysadmin Course Playlist:    • The Linux Basics Course: Beginner to ...   DigitalOcean referral link: https://m.do.co/c/0380a1db56a6 Patreon: https://www.patreon.com/tutorialinux Official Site & e-mail list: https://tutorialinux.com/ Twitter: https://twitter.com/tutorialinux Facebook: https://www.facebook.com/tutorialinux Podcast: http://kernelpanicpodcast.com/