How to find out binned matched reads with in particular chr region?

Question

[gskbioinfo143]

After doing per base coverage analysis using bedtools i have got coverage details for chr21. know how to get binned of matched reads with in chr21 region.

Need help

Thanks

[Pierre Lindenbaum]

https://www.google.com/search?q=extract+reads+region+site%3Abiostars.org