[Redhat7.4]How to check the devices?

1.check the USB devices

lsusb

1.1check the usb version,2.0 or 3.0

lsusb -v

looking for the ‘bcdUSB’ info

2.check the SATA/SAS device

lsscsi

3.check the pci device

lspci

4.check the cpu info

lscpu

5.check the memory info

cat /proc/meminfo