Here is my list:
- pdf -
pdftk - images -
imagemagickutilities - audio/video -
ffmpeg - documents -
libreoffice --headlessmode, alsopandoc - download files -
wgetandcurl, alsoytdlpfor youtube, reddit - cloud storage -
rclone
Here is my list:
pdftkimagemagickutilitiesffmpeglibreoffice --headless mode, also pandocwget and curl, also ytdlp for youtube, redditrclone
For audio files
soxandbeetsare my live saver.