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

The log lines look like this:

[Wed Jun 28 02:11:32 UTC 2017] Ping="6.835 ms" Download="764.91 Mbit/s" Upload="244.43 Mbit/s"

The cron entry to run each hour at 5 minutes after looks like this:

# speedtest log
5 * * * * /path/to/script/cron_speedtest

Hi there. I'm very new to cron jobs but also eager to learn. I've tried to edit the syntax of the cron job itself without success. Would you be able to help me with this matter?
Right now this is what I have "* * * * * ~/Desktop/MAIN/code/speedtest.sh" however keep getting the error "No such file or directory".

Thank you.

@aausek You will need to provide an absolute path, rather than one that uses the ~ home shortcut.

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.

Thanks. Edited line 3 and 5. Working like a charm

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