terms of settlement:
Check the Linux system version first:
cat /proc/version
1. RedHat mainly includes RedHat, Fedora, CentOS, etc;
The package management tool of RedHat series is Yum and up2date
yum install sudo -y
2. Debian system mainly includes Debian, Ubuntu, mint and their derivatives;
The package management tool of Debian series is apt get, which executes
apt-get update apt-get install sudo