Linux Check Disk Space Usage and Ram Usability

Check disk space on Linux

$ df -h

Check RAM usability

$ free --giga -t

Source :

https://stackoverflow.com/questions/16054112/disk-space-in-linux-server

https://unix.stackexchange.com/questions/374641/show-disk-usage

https://phoenixnap.com/kb/linux-check-disk-space

http://blog.imm.cnr.it/content/linux-check-disk-space-command-view-system-disk-usage-df-and-du

https://www.cyberciti.biz/faq/how-to-check-memory-debian-linux/