Script to run speedtest-cli via cron and log the results

cron_speedtest.sh

#!/usr/bin/env bash

LOG_PATH="/home/$(whoami)/log/speedtest.log"

if result=$(/usr/bin/speedtest --simple); then
  parsed_result=$(printf "${result}\"" | sed ':a;N;$!ba;s/\n/" /g' | sed 's/: /="/g')
  printf "[$(date)] ${parsed_result}\n" >> "${LOG_PATH}"
else
  printf "[$(date)] error\n" >> "${LOG_PATH}"
  exit 1
fi
exit 0

Hi there.
when i run the script, I have such an error.

sed: 1: ":a;N;$!ba;s/\n/" /g": unused label 'a;N;$!ba;s/\n/" /g'

If your script doesn't run and your logs (get them with sudo grep CRON /var/log/syslog contain:

(CRON) info (No MTA installed, discarding output)

You might have to change the permissions on the script to be executable with chmod +x <name of script>.

I got the script to work but I don't think the sed is working. I can't decipher it and not sure its intent but when I run the command without the two sed redirects it gives the same output either way. The output is dispersed across three lines instead of a nice neat one line log entry.

Came in handy after changing /usr/bin/speedtest to /usr/bin/speedtest-cli. Thanks!

Thank you. Works like a charm.
I had to manually put my home folder on LOG_PATH, for some reason the $(whoami) didn't work for me. Also /home/$(whoami)/log/ Doesn't exist on Ubuntu 24
Thanks again!.