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srf_list(1)			  Staden io_lib 		     srf_list(1)

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  de-
     termine  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 sub-
	    stantially 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 informa-
	    tion 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

				  September 29			     srf_list(1)

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