docker-mailserver/target/bin/addsaslpassword

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#! /bin/bash
DATABASE=${DATABASE:-/tmp/docker-mailserver/postfix-sasl-password.cf}
DOMAIN="$1"
USER="$2"
PASSWD="$3"
usage() {
echo "Usage: addsaslpassword <domain> <username> <password>"
}
errex() {
echo "$@" 1>&2
exit 1
}
escape() {
echo "${1//./\\.}"
}
[ -z "$DOMAIN" ] && { usage; errex "no domain specified"; }
[ -z "$USER" ] && { usage; errex "no username specified"; }
if [ -z "$PASSWD" ]; then
read -s -p "Enter Password: " PASSWD
echo
[ -z "$PASSWD" ] && errex "Password must not be empty"
fi
if grep -qi "^@$DOMAIN" $DATABASE 2>/dev/null; then
sed -i "s ^@"$DOMAIN".* "@$DOMAIN"\t\t"$USER":"$PASSWD" " $DATABASE
else
echo -e "@$DOMAIN\t\t$USER:$PASSWD" >> $DATABASE
fi