Linux CLI
Command references for navigation, files, processes, permissions, and system inspection.
Open CLI library →Learning areas
Hardware inventory
CPU, memory, PCI, USB, storage, network, firmware, and driver discovery.
Open hardware reference →Bash scripting
Reusable patterns for variables, command checks, functions, output, logging, and safe automation.
Open Bash notes →Service status
Links and notes for local services, dashboards, streaming components, and controlled tests.
Open status reference →Start here: hardware discovery
| Command | Primary purpose | Use it when |
|---|---|---|
sudo lshw -short |
Broad summary of detected system hardware | You need a fast overview of CPU, memory, buses, disks, and network devices |
lspci -nnk |
PCI/PCIe hardware and active kernel drivers | You are identifying GPUs, Ethernet controllers, audio devices, or NVMe controllers |
lsusb -t |
USB topology and assigned drivers | You are tracing USB hubs, adapters, card readers, or removable devices |
lsblk -o NAME,SIZE,TYPE,FSTYPE,MODEL,TRAN,MOUNTPOINTS |
Storage devices, partitions, models, transport, and mount points | You need to understand physical and logical disk layout |
ip -br link |
Network interfaces and link state | You are checking Ethernet, Wi-Fi, virtual, or VPN interfaces |
First Bash pattern
Label your work, run one safe command, and keep the result readable.
#!/usr/bin/env bash
set -euo pipefail
echo "=== CPU ==="
lscpu
echo
echo "=== Storage ==="
lsblk -o NAME,SIZE,TYPE,FSTYPE,MODEL,TRAN,MOUNTPOINTS