diff --git a/2012/deckmyn/.gitignore b/2012/deckmyn/.gitignore
index 2ea892cd5..9b9af080d 100644
--- a/2012/deckmyn/.gitignore
+++ b/2012/deckmyn/.gitignore
@@ -1,15 +1,12 @@
 #
 # sort with: sort -d -u
-beethoven.pbm
-blank.pbm
 *.dSYM
 deckmyn
 deckmyn.orig
 example_greensleeves
-greensleeves.pbm
 indent
 indent.c
 indent.o
-output.pbm
+*.pbm
+*.png
 prog.orig
-sheetmusic.pbm
diff --git a/2012/deckmyn/try.sh b/2012/deckmyn/try.sh
index ef62403dc..cc1ef3566 100755
--- a/2012/deckmyn/try.sh
+++ b/2012/deckmyn/try.sh
@@ -15,26 +15,67 @@ make CC="$CC" all >/dev/null || exit 1
 # clear screen after compilation so that only the entry is shown
 clear
 
-read -r -n 1 -p "Press any key to run deckmyn.c through less (space = next page, q = quit): "
+read -r -n 1 -p "Press any key to show deckmyn.c (space = next page, q = quit): "
 echo 1>&2
-less deckmyn.c
+less -rEXF deckmyn.c
 echo 1>&2
+
 echo "$ ./deckmyn "\$\(cat deckmyn.c\)" "\$\(cat example_greensleeves\)" 2>/dev/null > greensleeves.pbm" 1>&2
-./deckmyn "$(cat deckmyn.c)" "$(cat example_greensleeves)" 2>/dev/null > greensleeves.pbm
+read -r -n 1 -p "Press any key to continue: "
 echo 1>&2
-echo "Now open greensleeves.pbm in your image viewer of choice." 1>&2
+./deckmyn "$(cat deckmyn.c)" "$(cat example_greensleeves)" 2>/dev/null > greensleeves.pbm
 echo 1>&2
 
 echo "$ ./deckmyn "\$\(cat deckmyn.c\)" "\$\(cat example_beethoven\)" 2>/dev/null > beethoven.pbm" 1>&2
 read -r -n 1 -p "Press any key to continue: "
 echo 1>&2
 ./deckmyn "$(cat deckmyn.c)" "$(cat example_beethoven)" 2>/dev/null > beethoven.pbm
-echo "Now open beethoven.pbm in your image viewer of choice." 1>&2
 echo 1>&2
 
 echo "$ ./deckmyn "\$\(cat deckmyn.c\)" \"sz sa x  s1 x  s1 x  s1 x  s1 x  s1 \" 2>/dev/null > blank.pbm" 1>&2
 read -r -n 1 -p "Press any key to continue: "
 echo 1>&2
 ./deckmyn "$(cat deckmyn.c)" "sz sa x  s1 x  s1 x  s1 x  s1 x  s1 " 2>/dev/null > blank.pbm
-echo "Now open blank.pbm in your image viewer of choice." 1>&2
+echo 1>&2
 
+# Convert pbm files to png files if convert(1) is found in case the user does
+# not have a viewer of pbm files. At the end we will check for png files to ake
+# sure that there was at least one conversion. If that does not happen as long
+# as there are pbm files those will be listed instead. Otherwise something went
+# wrong and we warn the user about it.
+CONVERT="$(type -P convert)"
+if [[ -n "$CONVERT" && -f "$CONVERT" && -x "$CONVERT" ]]; then
+    if [[ -f "greensleeves.pbm" ]]; then
+	if "$CONVERT" greensleeves.pbm greensleeves.png; then
+	    echo "Converted greensleeves.pbm to greensleeves.png." 1>&2
+	fi
+    fi
+    if [[ -f "beethoven.pbm" ]]; then
+	if "$CONVERT" beethoven.pbm beethoven.png; then
+	    echo "Converted beethoven.pbm to beethoven.png." 1>&2
+	fi
+    fi
+    if [[ -f "blank.pbm" ]]; then
+	if "$CONVERT" blank.pbm blank.png; then
+	    echo "Converted blank.pbm to blank.png." 1>&2
+	fi
+    fi
+fi
+
+# Now tell the user to look at png files if any exist and otherwise any pbm
+# files if any exist. If no files exist then something went wrong so show a
+# warning message.
+if [[ ! "$(find . -name '*.png')" ]]; then
+    echo "Now open the following files with your image viewer of choice:" 1>&2
+    echo 1>&2
+    find . -name '*.png' -printf "   %p\n"
+elif [[ ! "$(find . -name '*.pbm')" ]]; then
+    echo "Now open the following files with your image viewer of choice:" 1>&2
+    echo 1>&2
+    find . -name '*.pbm' -printf "   %p\n"
+else
+    echo "-=-=-" 1>&2
+    echo "Notice: failed to write any image files. Free free to fix and open a" 1>&2
+    echo "pull request against the GitHub repo." 1>&2
+    echo "-=-=-" 1>&2
+fi