Calculate bandwidth per minute from access log

bandwidth-per-min.sh

#!/bin/bash

cat access.log \
  | awk -F' ' '{
      time = substr($4, 2, 17);
      times[time] = time;
      bandwidth[time] += $10
    } END {
      for (t in times) print times[t],bandwidth[t]/1024/1024
    }' \
  | column -t \
  | sort