-lastmod=`stat -c%y "$src_file"`
-lastmod_rfc3339=`date -u "+%Y-%m-%dT%TZ" -d "$lastmod"`
-published=`stat -c%y "$uuid_file"`
-published_rfc3339=`date -u "+%Y-%m-%dT%TZ" -d "${published}"`
-title=`read_and_escape_file "$intermediate_file" | head -1`
-uuid=`read_and_escape_file "$uuid_file" | head -1`
-body=`read_and_escape_file "$intermediate_file" | sed 1d`
+lastmod=$(get_lastmod_date_from_meta_file "$meta_file")
+lastmod_rfc3339=$(date -u "+%Y-%m-%dT%TZ" -d "@$lastmod")
+title=$(read_and_escape_file "$intermediate_file" | head -1)
+uuid=$(get_uuid_from_meta_file "$meta_file")
+published_unix=$(get_creation_date_from_meta_file_seconds "$meta_file")
+published_rfc3339=$(date -u "+%Y-%m-%dT%TZ" -d "@${published_unix}")
+body=$(read_and_escape_file "$intermediate_file" | sed 1d)