Philip Rowlands wrote: > On Fri, 18 Sep 2009, Pádraig Brady wrote: > >> Pádraig Brady wrote: >>> sleep $(seq .1 .1 4 | head -n $(($RANDOM%40 +1)) | tail -n1) >> >> Or more concisely using just coreutils logic: >> >> sleep $(seq .1 .1 4 | shuf | head -n1) > > This still has the quantization effects which I'm trying to avoid. Jim's > perl suggestion would work well to ensure an even spread over the window > of time. > > $ perl -e 'sleep rand 4' > > is probably the cleanest / most efficient way to do this with existing > tools.
right. Note the scheduler is still going to quantize your sleep values, so in practicality your probably not going to get smoother than: sleep $(seq .002 .002 4 | shuf | head -n1) cheers, Pádraig. p.s. That's another use case for sort --range
