tar -cjvf archive.tar.bz2 stuffcreatestar.bz2file wherestuffis a folder with files to be compressed.sudo lsblk -o NAME,FSTYPE,SIZE,MOUNTPOINT,LABELprints drive tree for each disk partition in a linux system.grep MemTotal /proc/meminfoprints total RAM.cat /proc/cpuinfo | grep processorlists all logical CPUs.lscpu | grep -i "Mhz"prints min/max CPU clock-speed.