call this every hour - and will do some action if for hour uploaded less than 4 gb. I wrote this script for restarting git-lfs push that stopped uploading after a few hours

tx.sh

#!/bin/bash
# running by cron every hour; get currently uploaded value and compare with uploaded value hour ago (readed from file),
# if delta is less then 4 gb - make something
# at the end - write currentry uploaded value to the file

prev=$(cat "./TX.txt")
now=$(ip -s link ls eth1 | awk 'NR==6{print $1}')
delta=$((now - prev))
delta=$((delta / 1000 / 1000 / 1000))
echo "$(date): delta (uploaded for last hour): $delta"
if ((delta < 4)); # gb | start screen in detached mode
        then kill -9 $(pgrep screen) && cd /home/vitaly/Desktop/dk-dance/ && screen -d -m git push -u origin --all
fi
ip -s link ls eth1 | awk 'NR==6{print $1}' > TX.txt # line 6 word 1 > write to file