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EPINFO(1)			  User Commands 		       EPINFO(1)

NAME
     epinfo - extract technical information from digital camera generated files

SYNOPSIS
     epinfo [-h] [-V] [-z] [-r] [-t] [-f fmt] [-T <TagName>] <filename> ...

DESCRIPTION
     This command extracts the contents of TIFF directory of Exif files or APP12
     marker  from JFIF files, parses it and optionaly finds specific data inside
     it.  If used without -T, -r and -t options, dumps the complete  block  data
     in  human	readable  format.   With  -r and -t options, renames and changes
     timestamp of the files.

OPTIONS
     -h   This option produces a help screen of all options and commands.

     -V   This option prints software revision information.

     -z   This option sets no time-zone processing mode.  Use this option if the
	  camera's clock is set up shifted by the local timezone offset  (as  it
	  is when you set it manually to the local time).

     -r   Rename files, generating new name based on the time of snapshot and -f
	  option value.

     -t   Set timestamp of the files to the time of snapshots.

     -f timeformat
	  This	option	allows to specify the format for automatically generated
	  image file names; the value is used as the  format  string  for  strf-
	  time(3)  function.  By default, names of the format "MMDD_NNN.jpg" are
	  generated, where MM is a month, DD is a day, and NNN is a count start-
	  ing from 001.  A good starting point for the timeformat value could be
	  "%Y_%m_%d-%H_%M_%S.jpg".   If  the  format  string  contains	 context
	  "%%XXXd"  where XXX are digits, it is taken for the count, i.e. if the
	  file with such name is present, next count is tried.	 If  the  format
	  string  does not contain "%%XXXd" part, the count field, if necessary,
	  is appended at the end of the name.

	  A few single-character formats are used as shortcuts.  "x"  makes  the
	  name	of seconds since the epoch in hexadecimal format (8 characters +
	  ".jpg"), "d" - the same in decimal format (10 characters), "1"  stands
	  for default format "%m%d_%%03d.jpg", "2" stands for "%y%m%d%%02d.jpg",
	  "3"	 stands   for	"%Y_%m_%d-%H_%M_%S.jpg"   and	4   stands   for
	  "%Y/%m/%d/%H_%M_%S.jpg".  The program attempts to create  intermediate
	  directories is necessary (and possible).

     -T <TagName>
	  Output  the value of this keyword in the information block.  Note that
	  keywords are case sensitive.	TagName DateTime has special meaning: if
	  the file is Exif, it just prints the value of DateTime tag, and if the
	  format is old APP12, it outputs the value of TimeDate tag in the  same
	  format as Exif DateTime.

ARGUMENTS
     <filename> ...
	  List of filenames to process.

EXAMPLES
     % epinfo -f3 -rt pic00001.jpg

     % epinfo -T FNumber 0512_003.jpg

OTHER NOTES
     The  latest  version  of  this  tool can be found at http://photopc.source-
     forge.net/

     Trademarks are properties of their respective owners.

COPYRIGHT
     The program is copyrighted by Eugene G. Crosser  <crosser@average.org>  and
     freely distributable.  See README file for details.

SEE ALSO
     photopc(1)

PhotoPC manipulation tool	   24 May 1997			       EPINFO(1)

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