Add 1994/smr/try.sh

Why would a zero byte entry that prints itself need a try script? Try it
and find out.

1994/smr/README.md

@@ -15,7 +15,7 @@ make all
 ## Try:
 
 ```sh
-./smr > smr.out ; diff -s smr.out smr.c
+./try.sh
 ```
 
 

1994/smr/try.sh

@@ -0,0 +1,33 @@
+#!/usr/bin/env bash
+#
+# try.sh - demonstrate IOCCC winner 1994/smr
+#
+
+# make sure CC is set so that when we do make CC="$CC" it isn't empty. Doing it
+# this way allows us to have the user specify a different compiler in an easy
+# way.
+if [[ -z "$CC" ]]; then
+    CC="cc"
+fi
+
+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 show smr.c: "
+echo 1>&2
+cat smr.c
+echo 1>&2
+
+read -r -n 1 -p "Press any key to run: ./smr: "
+echo 1>&2
+./smr
+echo 1>&2
+
+rm -f smr.out
+read -r -n 1 -p "Press any key to run: ./smr > smr.out; diff -s smr.out smr.c: "
+echo 1>&2
+./smr > smr.out; diff -s smr.out smr.c
+echo 1>&2
+rm -f smr.out