free -mh

Please fully explain the purpose, history and output of this command: free -mh The free command in Unix and Linux operating systems is…

ls command

Derek is a Professor of Computer Science at American Sentinel University. He is going to teach a class on the GNU/Linux ls command.

grep

Andrea is studying for an entry-level GNU/Linux Sysdamin certification, and she needs to master the grep command. Please use the term "Free Software"…

MariaDB

Anu's dream job is becoming a Database Engineer at Wikipedia. He knows that he needs to master MariaDB to have any reasonable hope…

rsync

Lloyd is a RHEL Engineer at Google who wants to master rsync. Please answer the following questions to improve his rsync level-of-knowledge. Lloyd…

tmux

Chad LB is a master saxophonist who leads his jazz quartet by night on his tenor saxophone. By day, he is the Director…