#!/bin/bash

#VARS
CONFIGFILE="/etc/asterisk/extensions_custom.conf"
DIRECTORY="/etc/asterisk/extensions.d"
NEWCONF=$(cat <<EOF
[globals]
#tryinclude extensions.d/*.conf
EOF
)

#Test and Create sub config dir
[ -d $DIRECTORY ] || mkdir $DIRECTORY


#Test for and add config accordingly
grep -Fxq "$NEWCONF" "$CONFIGFILE" || echo "$NEWCONF" >> "$CONFIGFILE"