How to search for all hosts belonging to two hostgroups? (ie: intersection of two hostgroups)

Hello,

Unfortunately, this is not possible with the Centreon UI

You can do that with a simple bash script and Centreon Command Line API:

#!/bin/bash

while (($# > 0)); do
    case $1 in
        --hg1)
            hg1=${2:?missing HG1 value}
            shift 2
            ;;

        --hg2)
            hg2=${2:?missing HG2 value}
            shift 2
            ;;
    esac
done

read -p "User (must be an admin account): " user
read -p "Password: " password


list_host1=$(centreon -u $user -p "$password" -o HG -a Getmember -v "$hg1" | tail -n +2  | cut -d ';' -f2 | sort -u)
list_host2=$(centreon -u $user -p "$password" -o HG -a Getmember -v "$hg2" | tail -n +2  | cut -d ';' -f2 | sort -u)

intersec=$(comm -12 <(echo "$list_host1") <(echo "$list_host2"))
echo "Hosts in both '$hg1' and '$hg2' ($(echo "$intersec" | wc -l)):"
echo $intersec

Note: I did not bother to handle errors.

With Centreon 26.10, the API can be used instead of CLAPI