Cannot render from CLI: wm_main_playanim_intern: no filepath argument given When I try to render from CLI using something like:
blender '/home/lxif/VFX/OZELOT/vfx clip/VFX/scenes/TREES _ FLOOR/FLOOR_2.blend' -a

irrespective of what file I try to render, I get the following errors:
AL lib: (EE) GetLoadedHrtf: Invalid header in /usr/share/openal/hrtf/default-44100.mhr: &quot;MinPHR02&quot;
AL lib: (EE) GetLoadedHrtf: Failed to load /usr/share/openal/hrtf/default-44100.mhr
AL lib: (EE) GetLoadedHrtf: Invalid header in /usr/share/openal/hrtf/default-48000.mhr: &quot;MinPHR02&quot;
AL lib: (EE) GetLoadedHrtf: Failed to load /usr/share/openal/hrtf/default-48000.mhr
wm_main_playanim_intern: no filepath argument given
AL lib: (EE) alc_cleanup: 1 device not closed

If I use sudo, I only get:
wm_main_playanim_intern: no filepath argument given
AL lib: (EE) alc_cleanup: 1 device not closed

What can I do to alleviate this? I want to be able to render multiple files overnight.
xx
Your command should be:
blender -b '/home/lxif/VFX/OZELOT/vfx clip/VFX/scenes/TREES _ FLOOR/FLOOR_2.blend' -a

You missed the -b option, that tells blender to batch render.
https://docs.blender.org/manual/en/latest/advanced/command_line/render.html