Email generator

#!/bin/bash

# c0ded by : shutdown57

m="\033[1;31m"
k="\033[1;33m"
h="\033[1;32m"
b="\033[1;34m"
n="\033[0m"

s57_alert(){
    echo -e $k"[-]"$n $1
}
s57_danger(){
    echo -e $m"[X]"$n $1
}
s57_info(){
    echo -e $b"[!]"$n $1
}
s57_good(){
    echo -e $h"[+]"$n $1
}
s57_generate_email()
{
    s57_info "Generating Email Please Wait ..."
    sleep 1
    user=`cat $1`
    domen=`cat $2`
    userx=$(echo $user | tr "\n" "\n")
    domenx=$(echo $domen | tr "\n" "\n")

for ucer in $userx
do
    s57_info "    ---- Generating for user : "$ucer
    for domeng in $domenx
    do
        s57_good $ucer"@"$domeng
    done
done
}


if [[ $1 == "" && $2 == "" ]]; then
    echo "Usage : "
    s57_info ""$0"list_user.txt list_email_domain.txt"
else
    s57_info "Checking File Exist ..."
    sleep 1
    if [[ -f $1 && -f  $2 ]]; then
        s57_good ".......... "$1" OK !"
        s57_good ".......... "$2" OK !"
        s57_info "Checking Valid File format ..."
        sleep 1.5
        if [[ $1 =~ ".txt" && $2 =~ ".txt" ]]; then
            s57_good "Format valid !"
            s57_generate_email $1 $2
        else
            s57_alert "File format for "$1" and "$2" Not valid"
            s57_alert " File format must file.txt"
        fi
    else
        s57_danger "......... "$1" KO !"
        s57_danger "......... "$2" KO !"
    fi
fi