To locate use updatedb then locate
To check vmware installed or not in Ubuntu
lsmod | grep vmw
Check OS Name & Version
hostnamectl
cat /etc/os-release
How to Configure BIND9 DNS Server on Ubuntu 20.04 https://serverspace.io/support/help/configure-bind9-dns-server-on-ubuntu/
Extract tar.gz file
tar -xvf archive.tar.gz
For wireless iwconfig
For active connection netstat -ano
For ip
ip a
For arp table
ip n
for route
ip r
if want to remove : after cat from abcd: tr -d ":"