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srf_info(1)			  Staden io_lib 		     srf_info(1)

NAME
     srf_info - Lists information about the contents of an SRF file

SYNOPSIS
     srf_info  [-l bitmap] srf_archive ...

DESCRIPTION
     srf_info  lists  some  simple  frequency  metrics on the contents of an SRF
     file, both in terms of how many traces there are and the sort of data  held
     within them.

     For efficiencies sake some control is given over which statistics to gather
     and display. This is controlled by the -l level parameter. The value is the
     summation	of one or more of the following values, representing the data to
     display.

     1	    Count of good/bad reads.

     2	    Counts and compressed size for selected chunk types.

     4	    Trace count and trace name prefix for each trace_header.

     8	    Base count.

OPTIONS
     -l bitmap
	    Controls which statistics to gather and display. Bitmap is	a  value
	    from  0  to  15  (1+2+4+8)	as  described in the DESCRIPTION section
	    above.

EXAMPLES
     To count the total number of good and bad reads along with a break down  of
     trace  names  per	SRF data-block-header we would use bitmap values 1 and 4
     combined.

	 srf_info -l 5 foo.srf

     To count the total number of reads for all srf files in a directory.

	 srf_info -l 1 *.srf

AUTHOR
     Steven Leonard, Wellcome Trust Sanger Institute

				  September 19			     srf_info(1)

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