Bash script to add openvpn keys and certs inline

#!/bin/bash

#   Define names of certs and keys and client ovpn script
#
ca="capi.crt"
cert="clientpi.crt"
key="clientpi.key"
tlsauth="tapi.key"
ovpndest="raspberry.ovpn"

#   Delete existing call to keys and certs
#
    sed -i \
    -e '/ca '$ca'/d'  \
    -e '/cert '$cert'/d' \
    -e '/key '$key'/d' \
    -e '/tls-auth '$tlsauth'/d' $ovpndest

#   Add keys and certs inline
#
echo "key-direction 1" >> $ovpndest

echo "<ca>" >> $ovpndest
awk /BEGIN/,/END/ < ./$ca >> $ovpndest
echo "</ca>" >> $ovpndest

echo "<cert>" >> $ovpndest
awk /BEGIN/,/END/ < ./$cert >> $ovpndest
echo "</cert>" >> $ovpndest

echo "<key>" >> $ovpndest
awk /BEGIN/,/END/ < ./$key >> $ovpndest
echo "</key>" >> $ovpndest

echo "<tls-auth>" >> $ovpndest
awk /BEGIN/,/END/ < ./$tlsauth >> $ovpndest
echo "</tls-auth>" >> $ovpndest