On Sun, Aug 30, 2015 at 03:40:20PM -0400, Eric Sunshine wrote:
> I suppose a viable approach might be to test once outside the loop if
> "date +%s" is supported and print the "(%d elapsed / %d estimated
> remaining)" annotation within the loop if it is, else not. The test
> might look something like this:
>
> echo $(date +%s) | grep -q '^[0-9][0-9]*$' 2>/dev/null && show_eta=t
Actually, you'd also want to suppress 'date' errors via /dev/null, so
perhaps:
{ echo $(date +%s) | grep -q '^[0-9][0-9]*$'; } 2>/dev/null && show_eta=t
or something.
> Platforms, such as Linux, Mac OS X, and FreeBSD, which support "date
> +%s" would get the annotated output, whereas it would fall back
> gracefully to the non-annotated output on platforms such as Solaris
> (and perhaps AIX) which lack it.
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