Deploy multi users in linux serveur

.sh

#!/bin/bash
declare -a tableau=( "martin" "john" "connor" )
i=${!tableau[@]}
for i in $i
do
        #sudo useradd ${tableau[$i]}
        #sudo passwd -f -u ${tableau[$i]}
        echo "bonjour ${tableau[$i]}"
        mdp=$(openssl rand -base64 9)
        echo -e "$mdp" | passwd ${tableau[$i]}
        #sudo useradd ${tableau[$i]} -s /bin/bash -p '${tableau[$i]}'
done