#!/bin/bash
database="/root/usuarios.db"
echo $$ > /tmp/pids
if [ ! -f "$database" ]
then
    echo "Arquivo /root/usuarios.db não encontrado"
    exit 1
fi
while true
do
tput setaf 7 ; tput setab 4 ; tput bold ; printf '%28s%s%-18s\n' "SSH Limiter"
tput setaf 7 ; tput setab 4 ; printf '  %-30s%s\n' "Usuário" "Conexão/Limite " ; echo "" ; tput sgr0
    while read usline
    do
        user="$(echo $usline | cut -d' ' -f1)"
        s2ssh="$(echo $usline | cut -d' ' -f2)"
        if [ -z "$user" ] ; then
            echo "" > /dev/null
        else
            ps x | grep [[:space:]]$user[[:space:]] | grep -v grep | grep -v pts > /tmp/tmp2
            s1ssh="$(cat /tmp/tmp2 | wc -l)"
            tput setaf 3 ; tput bold ; printf '  %-35s%s\n' $user $s1ssh/$s2ssh; tput sgr0
            if [ "$s1ssh" -gt "$s2ssh" ]; then
                tput setaf 7 ; tput setab 1 ; tput bold ; echo " Usuário desconectado por ultrapassar o limite!" ; tput sgr0
                while read line
                do
                    tmp="$(echo $line | cut -d' ' -f1)"
                    kill $tmp
                done < /tmp/tmp2
                rm /tmp/tmp2
            fi
        fi
    done < "$database"
    sleep 5
    clear
done