NAME¶
srf_list - Lists and/or counts the contents of an SRF file
SYNOPSIS¶
srf_list [
options]
srf_archive ...
DESCRIPTION¶
srf_list lists the filenames held within one or more SRF container. To
simply count the contents rather than list them specify the
-c option.
Note that when in count-only mode if an index is present it will be used to
determine the number of entries in the index and hence sequences in the SRF
file. The index cannot be used when listing the filenames however as the index
itself does not contain the full filenames.
Note that it is not possible to count sequences matching certain patterns or
with specific flags set.
srf_info is a more general purpose tool that
may cover this.
OPTIONS¶
- -c
- Counts sequences instead of listing them. Note that this
may be substantially faster than listing if an index exists.
- -v
- Verbose mode. This gives summary count information per file
rather than just the total at the end.
- -l
- Long format. When listing sequence names this also provides
information on the position in the archive and the size of the sequence
specific data block and the size of the shared data block
header.
EXAMPLES¶
To count the total number of sequences in several SRF files:
srf_list -c *.srf
To produce a "fofn" (file of filenames) for an SRF file:
srf_list foo.srf > foo.fofn
AUTHOR¶
James Bonfield, Wellcome Trust Sanger Institute