Outputs information about reads in a BAM file.

This can be used to optionally extract various fields from a BAM file on a
read-by-read basis. By default this will export the read-name, the mapped
reference, the mapped position, and the CIGAR alignment string for a read.

Usage: bamutils export {opts} {fields} bamfile

Options:
  -mapped              Output only mapped reads
  -unmapped            Output only unmapped reads

  -whitelist file.txt  Output only reads that are listed in a text file
  -blacklist file.txt  Output only reads that are not listed in a text file

Fields:
  -name          Read name
  -ref           Mapped reference (chrom)
  -pos           Mapped position (1-based)
  -strand        Mapped strand (+/-)
  -cigar         CIGAR alignment string
  -flags         Mapping flags (base 10 number)
  -seq           Sequence
  -qual          Quality sequence
  -mapq          MAPQ score
  -nextref       Next mapped reference (paired-end)
  -nextpos       Next mapped position (paired-end)
  -tlen          Template length (paired-end)
  -tag:tag_name  Any tag
                 For example:
                   -tag:AS -tag:NH
                   Outputs the alignment score and the edit distance
  -tag:*         Outputs all tags in SAM format


  Default fields: -name -ref -pos -cigar