try.sh

#!/usr/bin/env bash
#
# try.sh - demonstrate IOCCC entry 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