Add 2000/primenum/try.sh + format/typo checks

2000/primenum/README.md

@@ -29,7 +29,7 @@ NOTE: `n` is an integer.
 ### Try:
 
 ```sh
-echo IOCCC 23209 | ./primenum 23209
+./try.sh
 ```
 
 
@@ -45,6 +45,7 @@ it successfully fooled half of the judges, including me.
 
 ## Author's remarks:
 
+
 ### Description
 
 For 15 years, IOCCC winners have obfuscated programs using esoteric,
@@ -61,8 +62,8 @@ syntax "mistakes" (e.g. `LessThanOrEqualTo`) and blatant "errors" (e.g.
 `Zero`).  This program clearly requires "debugging."
 
 As a result of these "bugs", the program does not calculate primes at all.
-Instead, the program reads input from stdin and returns garbled text on
-stdout.  Fortunately, you can recover the original message simply by
+Instead, the program reads input from `stdin` and returns garbled text on
+`stdout`.  Fortunately, you can recover the original message simply by
 running the program a second time.  Try:
 
 ```sh

2000/primenum/try.sh

@@ -0,0 +1,34 @@
+#!/usr/bin/env bash
+#
+# try.sh - demonstrate IOCCC winner 2000/primenum
+#
+
+# 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="$CC" all >/dev/null || exit 1
+
+# clear screen after compilation so that only the entry is shown
+clear
+
+
+echo "$ echo IOCCC 23209 | ./primenum 23209" 1>&2
+echo IOCCC 23209 | ./primenum 23209
+echo 1>&2
+
+echo "$ echo THIS MESSAGE IS IN ALL CAPS | ./primenum 32" 1>&2
+echo THIS MESSAGE IS IN ALL CAPS | ./primenum 32
+echo 1>&2
+
+rm -f try.sh.txt
+echo "$ ./primenum 101 < try.sh | ./primenum n > try.sh.txt" 1>&2
+./primenum 101 < try.sh | ./primenum n > try.sh.txt
+echo "$ diff try.sh try.sh.txt"
+read -r -n 1 -p "Press any key to see diff (through less): " 1>&2
+diff try.sh try.sh.txt|less
+
+