Unzip

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Written by: Stanko Milosev
Category: Ubuntu
Hits: 19
sudo apt update
sudo apt install unzip
sudo unzip yourfile.zip
unzip /path/to/archive.zip -d /path/to/destination/

Display avaliable memory with colors

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Written by: Stanko Milosev
Category: Ubuntu
Hits: 14
To display avaliable memory with colors 
free -h | awk 'NR==2{printf "\033[36mRAM\033[0m | \033[32m%s\033[0m Total | \033[31m%s\033[0m Used | \033[32m%s\033[0m Free | \033[33m%s\033[0m Avail\n",$2,$3,$4,$7}'

Change pass add user

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Written by: Stanko Milosev
Category: Ubuntu
Hits: 16
sudo passwd root

sudo adduser username
If you want the user to be able to run administrative commands: 
sudo usermod -aG sudo username
Delete user 
sudo deluser username

sudo deluser --remove-home username

WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!

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Written by: Stanko Milosev
Category: Ubuntu
Hits: 25
If on: 
ssh username@ip-addres
I receive error like: 
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@    WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!     @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
Someone could be eavesdropping on you right now (man-in-the-middle attack)!
It is also possible that a host key has just been changed.
The fingerprint for the ED25519 key sent by the remote host is
Then do 
ssh-keygen -R ip-addres
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