CLI: Useful system information commands

For beginners, learning the Command Line Interface could be a vital tool in your arsenal. Master CLI commands to easily navigate between High-Performance Computing (HPC) clusters and your personnel computer.

Here are some of the most helpful CLI commands for fetching system information -

date	Show the current date and time
cal	Show the month's calender
uptime	show current uptime
w	Display who is on line
whoami	Who you are logged in as
finger <user>	Display information about user
uname -a	show kernel information about user
cat /proc/cpuinfo	CPU information
cat /proc/meminfo	Memory information
man <command>	Show the manual for command
df	Show the disk usage
du	Show directory space usage
free	Show memory and swap usage
whereis <app>	Show possible location of app
which <app>	Show which application will be run by default.

If you have any queries or problems logging into your computing space, don't hesitate to contact Uni Datacenter admin at cluster-admin@uni-datacenter.com.