rsyslog только делает лог-файлы в /var/logs

С помощью bash:

# important to use parentheses, not braces, to localize changes to IFS
# the variable is purposefully unquoted
split_pipe() ( IFS='|'; echo $1 )

while read -r first second third; do
  for word1 in $(split_pipe "$first"); do
    for word2 in $(split_pipe "$second"); do
      echo $word1 $word2 $third
    done
  done
done < file