I forget :/

remind.sh

remind ()
{
    if [ $1="-h" ] || [ $1="--help" ]; then
        echo "usage: remind <command_prefix>"
        return 0
    fi

    if [ -z "$1" ]; then
        echo "usage: remind <command_prefix>">&2
        return 1
    fi

    local cmd=$(history | grep "$1" | grep -v "remind" | tail -n 1 | sed 's/^[ ]*[0-9]*[ ]*//')
    if [ -z "$cmd" ]; then
        echo "no matching command">&2
        return 1
    fi

    echo "$cmd"
    eval "$cmd"
}