# Display Linux system information
uname -a
# Display kernel release information
uname -r
# Display the linux kernel name
uname -s
# Get the linux kernel version
uname -v
# Get network node hostname
uname -n
# Get machine hardware architecture (i386, x86_64, etc.)
uname --m
# Get processor type
uname -p
# Get hardware platform
uname -i
# Get operating system information
uname -o
# Show which version of redhat installed
cat /etc/redhat-release
# Show how long the system has been running + load
uptime
# Show system host name
hostname
# Display the IP addresses of the host
hostname -I
# Show system reboot history
last reboot
# Show the current date and time
date
# Show this month’s calendar
cal
# Display who is online
w
# Who you are logged in as
whoami
# Get Hardware information
sudo lshw
# View the summary of your detailed hardware profile
lshw -short
# Print your hardware profile to an HTML file as a superuser
sudo lshw -html > [filename.html]
# Get CPU information
lscpu
# Get block device information
lsblk
# View much more detailed information about all the devices
lsblk -a