[lug] Bash Scripting Ping

[D. Stimits]

> 
>     For those of me who're first reading your question while sitting in a coffee shop at a Mac laptop, could you just say what the flags are doing, so's I can make sure I understand the problem by trying something similar?
> 
I'm just listing the time in microseconds (which can be converted to a date, and is in fact one of the things I wanted to edit...changing microseconds to a date stamp), plus making sure no two pings are issued simultaneously (not normally a problem, but in bad network conditions it would be possible to issue two pings before either had returned...think of it as guaranteeing serialized pings).

>     On Sun, Nov 8, 2020 at 10:53 AM D. Stimits < stimits at comcast.net mailto:stimits at comcast.net > wrote:
> 
>         > >         I am curious about something in bash scripting which does not seem to be particularly easy. I wanted to script "ping -O -D address" such that each line gets processed by some logic if the ping fails. Redirecting ping to a variable does not work because it only "returns" when the ping exits (each line is not an exit). Even if I were to fork and exec, the forked process would itself have the same problem.
> > 
> >         Is there some simple/clever way to process each line of a ping in bash without killing off the ping itself? My goal was to send it through some database and statistics type processing as success/failure lines occur.
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