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Interview prep for the people who keep production up.

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Every Linux command,
animated.

Watch each command run in a real-looking terminal, see what every part of it means, then try it yourself with practice tasks. From ls to kubectl.

203commands
23tracks
0opened by you

The first three commands on any server: where am I, what's here, and how full is the disk.

devops@devops-lab: ~ — zsh — 96×28
➜ ~
Step 1 of 3
pwd

pwd prints the directory you're in. Every relative path starts from here.

Track 09 of 23

Packages & Services

Install software with apt and dnf, and run services with systemctl and journalctl.

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$aptInstall, upgrade and remove packages on Debian and UbuntuBeginner$dnfManage packages on Amazon Linux 2023, RHEL and FedoraBeginner$yumThe classic RPM package manager (and what it is today)Beginner$rpmQuery, verify and install RPM packages directlyIntermediate$dpkgQuery and install .deb packages directlyIntermediate$systemctlStart, stop, enable and inspect systemd servicesBeginner$journalctlQuery systemd's journal: service, boot and kernel logsIntermediate