To check information about the multiple hardware units like CPU, memory, USB controller, disk, etc. of Linux system. Hence view system information about your Linux environment.
| df -T -h | List file system disk space usage |
| fdisk -l | List partition tables |
| free -mcat /proc/meminfo
free -mt free -gt |
Display RAM and Swap usage |
| top | To see used and free memory and CPU usage |
| uname | Without any options returns the kernel name
uname -a General all system information uname -r Get the Linux Kernel Release information uname -v or cat /proc/version Get the Linux Kernel Version uname -n Get Network Node Hostname OR uname –nodename uname –m Provide Machine Hardware Architecture information |
| lsb_release -acat /etc/*release* | Provide information about the Linux distribution and version |
| lshw | The command runs as a superuser and provides hardware Information with like memory, CPU, disks, of a system
lshw -short To view the summary of detailed hardware profile |
| lshw -short -C memory | Find RAM speed and max supported by the server |
| sudo lshw -html > [filename.html] | To print your hardware profile to an HTML file as a super user |
| lscpuless /proc/cpuinfo | Display CPU Information from the files sysfs and /proc/cpuinfo |
| lsblk | Display Block Device Information about all the primary storage devices connected such as hard drive, its partitions, and the flash drives
lsblk -a To view detailed information about all the devices |
| lsusb | Display USB Device Information of all the USB controllers and the devices connected lsusb -v to view much detailed information about each USB device |
| lspci | Information About PCI devices |
| lsscsi | Information About SCSI devices |
| hdparm [devicelocation] | The command gives you information about SATA devices like hard disks |
| demicode | sudo dmidecode -t bios display information about the bios
sudo dmidecode -t memory display information about the memory sudo dmidecode -t processor displays information about the process |
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