DMIDECODE - BIOS/Hardware info
# Full system info (requires root)
sudo dmidecode
# BIOS information
sudo dmidecode -t bios
# System information
sudo dmidecode -t system
# Processor information
sudo dmidecode -t processor
# Memory information
sudo dmidecode -t memory
# All types
sudo dmidecode -t 0,1,2,3,4
Common queries
# Serial number
sudo dmidecode -s system-serial-number
# Manufacturer
sudo dmidecode -s system-manufacturer
# Product name
sudo dmidecode -s system-product-name
# BIOS version
sudo dmidecode -s bios-version
LSHW - Hardware lister
# Full hardware tree
sudo lshw
# Short format
sudo lshw -short
# Specific class
sudo lshw -C network
sudo lshw -C disk
sudo lshw -C memory
sudo lshw -C processor
# HTML output
sudo lshw -html > hardware.html
# XML output
sudo lshw -xml
LSCPU - CPU information
# CPU details
lscpu
# Parse specific fields
lscpu | grep "Model name"
lscpu | grep "CPU(s)"
lscpu | grep "Thread(s) per core"
LSPCI - PCI devices
# List all PCI devices
lspci
# Verbose
lspci -v
lspci -vv # Very verbose
# Show kernel drivers
lspci -k
# Specific device
lspci -s 00:1f.2 -v
# Network cards
lspci | grep -i network
# Graphics cards
lspci | grep -i vga
LSUSB - USB devices
# List USB devices
lsusb
# Verbose
lsusb -v
# Tree view
lsusb -t
# Specific device
lsusb -d 046d:c52b
LSBLK - Block devices
# List block devices
lsblk
# Show filesystem
lsblk -f
# Show size in bytes
lsblk -b
# Specific device
lsblk /dev/sda
INXI - System info
# Install
sudo apt install inxi
# Full system info
inxi -F
# CPU info
inxi -C
# Graphics
inxi -G
# Network
inxi -N
# Drives
inxi -D
# Audio
inxi -A
HWINFO - Comprehensive hardware
# Install
sudo apt install hwinfo
# Full probe
sudo hwinfo
# Specific component
sudo hwinfo --cpu
sudo hwinfo --network
sudo hwinfo --disk
sudo hwinfo --memory
# Short summary
sudo hwinfo --short
/proc filesystem
# CPU info
cat /proc/cpuinfo
# Memory info
cat /proc/meminfo
# Version
cat /proc/version
# Uptime
cat /proc/uptime
# Mounts
cat /proc/mounts
# Partitions
cat /proc/partitions
Kernel information
# Kernel version
uname -r
# All system info
uname -a
# Kernel name
uname -s
# Machine hardware
uname -m
# Processor type
uname -p
OS information
# OS release
cat /etc/os-release
# LSB info
lsb_release -a
# Hostname
hostname
hostnamectl
# Distribution
cat /etc/issue
Disk information
# Disk usage
df -h
# Disk space by directory
du -sh /*
# SMART status
sudo smartctl -a /dev/sda
# Partition table
sudo fdisk -l
sudo parted -l
Memory slots
# Memory modules
sudo dmidecode -t memory | grep -i size
# Memory speed
sudo dmidecode -t memory | grep -i speed
# Slots used
sudo dmidecode -t memory | grep -i "Number Of Devices"
Network interfaces
# All interfaces
ip addr show
# Specific interface
ip addr show eth0
# Link status
ip link show
# Hardware info
ethtool eth0
PCI IDs lookup
# Update PCI ID database
sudo update-pciids
# Lookup vendor/device
lspci -nn | grep "8086:1539"
Complete system report
#!/bin/bash
echo "=== System Information Report ==="
echo ""
echo "Hostname: $(hostname)"
echo "OS: $(cat /etc/os-release | grep PRETTY_NAME | cut -d'"' -f2)"
echo "Kernel: $(uname -r)"
echo "Uptime: $(uptime -p)"
echo -e "\n=== CPU ==="
lscpu | grep "Model name\|CPU(s)\|Thread(s)"
echo -e "\n=== Memory ==="
free -h | grep Mem
echo -e "\n=== Disk ==="
lsblk -o NAME,SIZE,TYPE,MOUNTPOINT
echo -e "\n=== Network ==="
ip -br addr
echo -e "\n=== Graphics ==="
lspci | grep -i vga
Hardware monitoring
# Temperature sensors
sensors
# Fan speeds
sensors | grep fan
# CPU temperature
cat /sys/class/thermal/thermal_zone*/temp
Battery information (laptops)
# Battery status
upower -i /org/freedesktop/UPower/devices/battery_BAT0
# AC adapter
upower -i /org/freedesktop/UPower/devices/line_power_AC
# Simple check
cat /sys/class/power_supply/BAT0/capacity
Performance info
# CPU frequency
cat /proc/cpuinfo | grep MHz
# Load average
uptime
cat /proc/loadavg
# Running processes
ps aux | wc -l