#!/bin/bash
. opts
args=()
args_n=0
for o; do
	args[$args_n]="-e"; args_n=$[$args_n + 1]
	args[$args_n]="$o"; args_n=$[$args_n + 1]
done
if [ "$args_n" = 0 ]; then
	exec cat
fi
exec grep "${OPTS[@]}" "${args[@]}"