text: user776: Given a set of bigBed files, each of which are disjoint to each other and in lexicographical ("sort-bed") sort order, I would like to know if there is a way to concatenate these archives efficiently.
  Presuming I know the order in which to specify files (to constrain the order of intervals), is there a way to concatenate them directly, i.e., without first extracting them to bed, concatenating the extracted files, and remaking a bigBed file?
  
  user77: No, there's no simple way to do that without someone writing a program tailored toward it that handles the footer section and recreates the zoom levels that follow the compressed blocks of intervals. If you wanted to write such a program, modifying bigWigCat from Kent's tools would be a reasonable tack.
  
original_text: 776: <p>Given a set of bigBed files, each of which are disjoint to each other and in lexicographical ("sort-bed") sort order, I would like to know if there is a way to concatenate these archives efficiently.</p>
  
  <p>Presuming I know the order in which to specify files (to constrain the order of intervals), is there a way to concatenate them directly, <em>i.e.,</em> without first extracting them to bed, concatenating the extracted files, and remaking a bigBed file?</p>
   77: <p>No, there's no simple way to do that without someone writing a program tailored toward it that handles the footer section and recreates the zoom levels that follow the compressed blocks of intervals. If you wanted to write such a program, modifying bigWigCat from <a href="http://hgdownload.soe.ucsc.edu/admin/exe/linux.x86_64.v369/" rel="nofollow noreferrer">Kent's tools</a> would be a reasonable tack.</p>
  