$ cd blank

$ touch banana.md
$ touch orange.md
$ mkdir dir
$ touch dir/orange.md
$ touch dir/apple.md
$ touch dir/pear.md

# Use a custom filter with `zk list`.
$ echo "[filter] recents = '--sort created- --limit 2'" > .zk/config.toml
$ zk list -qfpath recents
>dir/pear.md
>dir/apple.md

# Filter named after a directory to override the default filtering options.
$ echo "[filter] dir = 'dir --sort path-'" > .zk/config.toml
$ zk list -qfpath dir
>dir/pear.md
>dir/orange.md
>dir/apple.md

# Nested filters.
$ echo "nested = 'dir --limit 2'" >> .zk/config.toml
$ zk list -qfpath nested
>dir/pear.md
>dir/orange.md