#!/bin/sh
cd $(dirname "$0")

tmp=$(mktemp -d) ||Die 1
echo >&2 " tmp $tmp"
Die() {
 e=$?
 trap - EXIT
 rm -rf $tmp
 exit ${1:-$e}
}; trap Die HUP EXIT #INT

pause() {(
 echo >&2 -n "Continue? ..."
 read -sn1 REPLY
 echo >&2
)}

cat >$tmp/txt <<%EOF
ABC
...
...
..;

...
...
..;
DEF
123
ABC
.
.
.
DEF
%EOF

cc -o $tmp/exe spin.c
cd $tmp ||Die 1

2>&1 (
set -v
./exe search ...   ;rmdir search
./exe search aA... ;rmdir search
./exe search a.
./exe search       ;rmdir search
: $'\e[1m---\e[0m'
<txt ./exe search 414243.4445460a 1010
cat search/found
cat search/0000000000000000
: $'\e[1m---\e[0m'
echo 'ABCD' |./exe enddot 4142. ||Die
cat enddot/0000000000000000
)

{
echo "created:"
find . -mindepth 1 -printf '%p\n'
}>&2

{
echo "Removing $tmp... (CTRL-C) to abort."
echo " - Press key to continue."
}>&2
trap - EXIT
read -n1
Die