Add 2020/otterness/try.sh

The .gitignore was updated but it cannot be sorted because it excludes
'*.mid' but then negates the .mid files in the repo, cvikl.mid and
entertainer.mid. These have to come after the exclusion of '*.mid'. This
is important as one might use the entry to create a .mid file that is
not done in the try script. The make clobber rule does not remove
'*.mid' files as doing so would remove the ones we want to keep.

2020/otterness/.gitignore

@@ -1,8 +1,12 @@
 #
-# sort with: sort -d -u
+# Don't sort because of the exclusion of *.mid with the exception
+# of the cvikl.mid and the entertainer.mid.
 *.dSYM
 indent
 indent.c
 indent.o
 prog
 prog.orig
+*.mid
+!cvikl.mid
+!entertainer.mid

2020/otterness/README.md

@@ -26,13 +26,12 @@ For more detailed information see [2020 otterness in bugs.md](/bugs.md#2020-otte
 ## Try:
 
 ```sh
-./prog < cvikl.mid > output.mid
-# Play output.mid with your favorite player
-
-./prog < entertainer.mid > output2.mid
-# Play output2.mid with your favorite player
+./try.sh
 ```
 
+Now play `output.mid` and `output2.mid` in an audio player that can play MIDI
+files.
+
 
 ## Judges' remarks:
 

2020/otterness/try.sh

@@ -0,0 +1,26 @@
+#!/usr/bin/env bash
+#
+# try.sh - demonstrate IOCCC winner 2020/otterness
+#
+
+# make sure CC is set so that when we do make CC="$CC" it isn't empty. Doing it
+# this way allows us to have the user specify a different compiler in an easy
+# way.
+[[ -z "$CC" || ! -f "$CC" || ! -x "$CC" ]] && CC="cc"
+
+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: ./prog < cvikl.mid > output.mid: "
+echo 1>&2
+./prog < cvikl.mid > output.mid
+echo "Now play output.wav in an audio player that can play MIDI files." 1>&2
+echo 1>&2
+
+read -r -n 1 -p "Press any key to run: ./prog < entertainer.mid > output2.mid: "
+echo 1>&2
+./prog < entertainer.mid > output2.mid
+echo "Now play output2.wav in an audio player that can play MIDI files." 1>&2
+echo 1>&2

thanks-for-help.md

@@ -4872,6 +4872,8 @@ J.R.R. Tolkien).
 that one need not download them and to make sure they can always be obtained
 even if the domain or link goes dead.
 
+Cody also added the [try.sh](/2020/otterness/try.sh) script.
+
 
 ## <a name="2020_tsoj"></a>[2020/tsoj](/2020/tsoj/prog.c) ([README.md](/2020/tsoj/README.md))