text: #!/usr/bin/python
  
  import sys
  # Merge files together.  Single byte of 0 as separator
  
  sep = bytearray(b'\x00\x00\x00')
  
  def nulltest(outf, name):
      zcount = 0
      for c in name:
          if c == 'z':
              zcount += 1
          else:
              return False
      zbuf = bytearray([0]*zcount)
      outf.write(zbuf)
      return True
  
  def run(outname, flist):
      try:
          outf = open(outname, 'wb')
      except:
          sys.stderr.write("Couldn't open output file '%s'\n" % outname)
          sys.exit(1);
      for fname in flist:
          if nulltest(outf, fname):
              continue
          try:
              f = open(fname, 'rb')
          except:
              sys.stderr.write("Couldn't open file '%s'\n" % fname);
              sys.exit(1)
          while True:
              bytes = f.read(1024)
              if len(bytes) == 0:
                  break
              outf.write(bytes)
          f.close()
      outf.close()
      
              
  if __name__ == "__main__":
      if len(sys.argv) < 3:
          sys.stderr.write("Usage: %s OFILE IFILE1 ...\n" % sys.argv[0])
          sys.stderr.write("  If IFILE is 'z...z', then insert that many null bytes\n")
          sys.exit(0)
      run(sys.argv[1], sys.argv[2:])
  