#! /bin/bash

# replace {release} in a sources.list template with the value of $release


# $1 is the class name used
# $2 is the path to the file copied

# check if a variable of the form {varname} was used at all
grep -q '{' $2 || exit 0

if [ -z "$release" ]; then
    echo "\$release is undefined. No substitution performed in $2."
   exit 0
fi

sed -i -e "s/{release}/$release/g" $2