#!/bin/sh
# todo: v 1.0  2016/13/10 12:02:00 dcat

umask 0177

: ${TODO:=$HOME/TODO}
: ${TEMP:=/tmp/todo.tmp}


[ $# -eq 0 ] && {
	nl -n ln <$TODO
	exit 0
}

# portable alternative for `sed` in-place flag
in_place() {
	:>$TEMP || exit 1
	sed "$@" <$TODO >$TEMP && mv $TEMP $TODO || rm $TEMP
}

case "$1" in
add)
	shift
	echo "$@" >>$TODO
	;;
rm)
	shift
	in_place "$@d"
	;;
esac