  As one of the most common features in the solar atmosphere, filaments are
significant not only in the solar physics but also in the stellar and
laboratory plasma physics. With the New Vacuum Solar Telescope and the Solar
Dynamics Observatory, here we report on multi-wavelength observations of
eruptions of a small (30\arcsec) filament (SF) and its consequences while
interacting with the ambient magnetic features including a large (300\arcsec)
filament (LF). The eruptions of the SF drive a two-side-loop jet that is a
result of magnetic reconnection between the SF threads and an over-lying
magnetic channel. As a consequence of the eruption, the heating in the
footpoints of the SF destabilises the barbs of the LF rooted nearby. Supersonic
chromospheric plasma flows along the barbs of the LF are then observed in the
\halpha\ passband and they apparently feed materials to the LF. We suggest they
are shock-driven plasma flows or chromospheric evaporations, which both can be
the consequences of the heating in the chromosphere by nonthermal particles
generated in the magnetic reconnection associated with the two-side-loop jet.
Our observations demonstrate that the destabilisation in the vicinity of the
footpoints of a barb can drive chromospheric plasma feeding to the filament.
