lscpu: cpu info
lshw: hw info
hwinfo –short: hw info short
lspci: list pci
lsscsi: list scsi
lsusb: list usb
inxi -Fx: easy to read information
lsblk: list block
df -h: df
pydf: python df
sudo fdisk -l: disk information
mount | column -t
mount | column -t | grep ext
free -m: memory info
sudo dmidecode -t: system information
/proc/cpuinfo
/proc/meminfo
/proc/version
/proc/scsi/scsi
/proc/partisions
sudo hdparm -i

Reference

https://mytory.net/2014/11/07/linux-hardware-info.html