Block 1 of 16

Shell &
Filesystem
Fluency

The CLI is your primary tool on every RHEL server. Build the muscle memory for finding files fast, reading logs without an editor, and chaining commands to get answers in seconds.

5 Live RHEL 9 Foundations Block 1 of 16
🔍
Lab 1
Finding What You Need, Fast
Live
📋
Lab 2
Reading & Filtering Logs
Live
📁
Lab 3
File Operations Under Pressure
Live
📦
Lab 4
Archiving & Deploying Config Packages
Live
⚡
Lab 5
Shell Shortcuts That Save Time Daily
Live
Block 1 Labs
01
Shell & Filesystem Fluency
Triage, Logs, Files, Archiving & Shell Efficiency
Lab 1
Finding What You Need, Fast
A service is failing and you need its config and recent logs immediately. find, locate, grep -r, and ls -lt to triage an unfamiliar server. The new-server-in-5-minutes workflow.
Start lab →Live
Lab 2
Reading & Filtering Logs at the CLI
grep, tail -f, less +F, awk, cut. Extract specific errors from /var/log/messages without loading the whole file. Build one-liners that filter by timestamp, hostname, or severity.
Start lab →Live
Lab 3
File Operations Under Pressure
cp, mv, rm, mkdir, ln, rsync for local copies. Make a config backup before you edit it. Restore it if you break something. The habits that prevent incidents.
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Lab 4
Archiving & Deploying Config Packages
tar to bundle a config directory, ship it to another host with scp, and extract it. The real-world config promotion workflow used before proper automation exists.
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Lab 5
Shell Shortcuts That Save Time Daily
History search (Ctrl-R), bang expansions, brace expansion, command substitution. Aliases for commands you type 20 times a day. The things that make experienced admins faster.
Start lab →Live