netplan not working

When netplan is not working on Ubuntu servers

how to check port via /dev/tcp

/dev/tcp

date 12 - hour clock

When we need only 12 hours date. 

sshd script

 I wrote the script for checking sshd config syntax. 

sshd command

 For communication and checking sshd service we can use sshd command.

ps -p

Sometimes we need find process via number of PID. Welcome to lesson of ps -p!

How to remove files with ignore case sensitivity?

 

How to remove files with ignore case sensitivity?