In Debian and Ubuntu
To install sudo:
apt update
apt install sudo -y
To install curl:
sudo apt-get update
sudo apt install curl
To install bash:
sudo apt-get update
sudo apt-get -y install bash
In Centos
To install sudo:
yum update
yum install sudo
To install curl:
sudo yum update
sudo yum install curl
To install bash:
sudo yum update
sudo reboot (run this command if you have kernel updates)
sudo yum install curl
sudo yum install bash-completion or yum install bash-completion bash-completion-extras
