epinfo - extract technical information from digital camera
epinfo [-h] [-V] [-z] [-r] [-t] [-f fmt] [-T <TagName>]
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.
-h This option produces a help screen of all options and
-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.
This option allows to specify the format for automat-
ically generated image file names; the value is used
as the format string for strftime(3) function. By
default, names of the format "MMDD_NNN.jpg" are gen-
erated, where MM is a month, DD is a day, and NNN is
a count starting from 001. A good starting point for
the timeformat value could be
"%Y_%m_%d-%H_%M_%S.jpg". If the format string con-
tains 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
A few single-character formats are used as shortcuts.
"x" makes the name of seconds since the epoch in hex-
adecimal 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
Output the value of this keyword in the information
block. Note that keywords are case sensitive. Tag-
Name 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.
List of filenames to process.
% epinfo -f3 -rt pic00001.jpg
% epinfo -T FNumber 0512_003.jpg
The latest version of this tool can be found at
ftp://ftp.average.org/pub/photopc/; see also WWW page at
Trademarks are properties of their respective owners.
The program is copyrighted by Eugene G. Crosser
<firstname.lastname@example.org> and freely distributable. See
README file for details.
Man(1) output converted with