Get Device Information

Get All Hardware Devices

lspci

Get Drives Info

fdisk -l

Get HDD Partitions Info

df -h

Get CPU Info

cat /proc/cpuinfo

Get Filesystems Info

cat /proc/filesystems

Configuration Info

Sytem Configuration

system-config-network
system-config-display
system-config-packages
system-config-...

Show Logical Volums

mcedit /etc/fstab

Get Swap Size

cat /proc/swaps