Basic System info Commands for Linux

Here, I am going to discuss some basic Linux command through which you can get the information of your system in Linux environment.

cat /proc/meminfo: It will provide you Memory Information.
cat /proc/cpuinfo: It will provide you CPU Information.
date: It will show you current date or time.
whoami: It shows who are logged in right now.
df -h: It shows disk usage.
du: It shows directory space usage.
uname -a: It shows kernel information.
w: It shows who is online.
cal: It shows the current month calender.
cat /proc/filesystems: It shows the type of current file system which are currently using.
free: It displays available memory in kilo bytes.
cat /proc/version: This command shows what version you are using. And it displays some other information as well.