Anno domini 2024 Sun, 22 Sep 19:56:05 +0000
dep via tde-users scripsit:
> Some months ago I asked here if there were a way to log my ISP's downtime,
> and got a useful answer. Today I've been attempting to refine it a bit,
> and there is some progress, but not success.
>
> Here's what I have:
>
> [code]
> #!/bin/bash
> #monitor frontier communications downtime
> ping -i 3 -O -D 1.1.1.1 | while read row
> do
> awk '{ sub(/[0-9]{10}/, strftime("%Y-%m-%d %H:%M:%S", substr($0,2,10))) }
> 1' <<< "$row"| tee ~/frontier_downtime.log
> done
> [/code]
>
> Most of it is simply converting internet time to human time, because I
> might have to use it to support a complaint. It runs fine in a terminal, a
> nice ping and result every three seconds, but only writes the first line,
> the first ping result, to the logfile. (And yes, ir's probably sloppy.)
>
> What do I have wrong?
>
> Bonus question: any way to keep it running with the terminal closed? I
> can't even use & to free the terminal; I'd like to start the thing and
> have it cook merrrily away without a terminal open or even minimized, and
> use top or killall to dispose of it if that becomes necessary.
>
> I'm pretty sure I'm missing something obvious.
In case you did not solve this already:
$ ping -i 3 -O -D 1.1.1.1 |\
stdbuf -i 0 -o 0 awk '{ sub(/[0-9]{10}/, strftime("%Y-%m-%d %H:%M:%S", substr($0,2,10))) } 1' |\
tee -a ~/frontier_downtime.log
You can put this line in /etc/rc.local and it will do it's work in the background.
Nik
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