bamcat - concatenate BAM files
bamcat [options]
bamcat reads a set of input BAM files, merges the headers, concatenates the
alignment data and writes the output on standard output in BAM format. The
input files can be specified via the I key. Any none key=value arguments given
after the key=value pairs will also be considered as input files.
The following key=value pairs can be given:
I=<stdin>: name of the input file. This key can be used multiple
times
level=<-1|0|1|9|11>: set compression level of the output BAM file.
Valid values are
- -1:
- zlib/gzip default compression level
- 0:
- uncompressed
- 1:
- zlib/gzip level 1 (fast) compression
- 9:
- zlib/gzip level 9 (best) compression
If libmaus has been compiled with support for igzip (see
https://software.intel.com/en-us/articles/igzip-a-high-performance-deflate-compressor-with-optimizations-for-genomic-data)
then an additional valid value is
- 11:
- igzip compression
verbose=<1>: Valid values are
- 1:
- print progress report on standard error
- 0:
- do not print progress report
tmpfile=<filename>: prefix for temporary files. By default the
temporary files are created in the current directory
md5=<0|1>: md5 checksum creation for output file. Valid values are
- 0:
- do not compute checksum. This is the default.
- 1:
- compute checksum. If the md5filename key is set, then the
checksum is written to the given file. If md5filename is unset, then no
checksum will be computed.
md5filename file name for md5 checksum if md5=1.
index=<0|1>: compute BAM index for output file. Valid values are
- 0:
- do not compute BAM index. This is the default.
- 1:
- compute BAM index. If the indexfilename key is set, then
the BAM index is written to the given file. If indexfilename is unset,
then no BAM index will be computed.
indexfilename file name for BAM index if index=1.
streaming=<0>: streaming mode inactive or active. By default
streaming mode is inactive. Valid values are
- 0:
- streaming mode is inactive. Only one input file will be
opened at any single time, but each input file is openend twice (once for
reading the header only, the second time for extracting the alignment
data).
- 1:
- streaming mode is active. All input files will be opened at
the same time and kept open until data processing is finished. Each input
file will be opened only once.
Written by German Tischler.
Report bugs to <
[email protected]>
Copyright © 2009-2013 German Tischler, © 2011-2013 Genome Research
Limited. License GPLv3+: GNU GPL version 3
<
http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it. There is NO
WARRANTY, to the extent permitted by law.