From 2317ba004cfcfaefeadb872c40a4742867a39836 Mon Sep 17 00:00:00 2001
From: "W. Trevor King" <wking@drexel.edu>
Date: Tue, 1 Feb 2011 12:23:39 -0500
Subject: [PATCH] Use exif (libexif tool) instead of MetaCam in
 name-by-date.sh.

---
 posts/name-by-date.mdwn            | 8 ++++----
 posts/name-by-date/name-by-date.sh | 6 +++---
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/posts/name-by-date.mdwn b/posts/name-by-date.mdwn
index dd259b4..729646d 100644
--- a/posts/name-by-date.mdwn
+++ b/posts/name-by-date.mdwn
@@ -6,11 +6,11 @@ creation date.
     DSC_0356.JPG taken on "2010.07.02.08.38.10"
     ...
 
-`name-by-date.sh` uses Daniel Stephens' [MetaCam][] (ebuild in my
-[[Gentoo overlay]]) to extract thed ate from the picture's metadata,
-so you'll have to install that first.
+`name-by-date.sh` uses the `exif` command line interface to
+[libexif][] to extract the date from the picture's metadata, so you'll
+have to install that first.
 
-[metacam]: http://www.cheeseplant.org/~daniel/pages/metacam.html
+[libexif]: http://libexif.sourceforge.net/
 
 [[!tag tags/bash]]
 [[!tag tags/programming]]
diff --git a/posts/name-by-date/name-by-date.sh b/posts/name-by-date/name-by-date.sh
index 1f3f276..66de6c5 100755
--- a/posts/name-by-date/name-by-date.sh
+++ b/posts/name-by-date/name-by-date.sh
@@ -21,15 +21,15 @@
 #
 # usage: name-by-date.sh $(find . -name '*.jpg')
 #
-# uses metacam, [, cut, dirname, echo, file, grep, let, mv, and sed.
+# uses exif, [, cut, dirname, echo, file, grep, let, mv, and sed.
 
 
 while [ -n "$1" ]; do
 	FILE=$1
 	TYPE=$(file "$FILE" | grep JPEG)
 	if [ -n "$TYPE" ]; then
-		DATE_LINE=$(metacam "$FILE" | grep 'Image Creation Date')
-		DATE=$(echo "$DATE_LINE" | cut -d: -f 2,3,4,5,6 | sed 's/:/./g' | cut -d\  -f2,3 | sed 's/ /./g')
+		ASCII_DATE=$(exif -m -t 'Date and Time' "$FILE")  # 2010:07:02 08:36:20
+		DATE=$(echo "$ASCII_DATE" | sed 's/:/./g' | sed 's/ /./g')
 		if [ -z "$DATE" ]; then
 			echo "$FILE has no stored date"
 	 	else
-- 
2.26.2