Current command:
mem spiffs upload --help
Uploads binary-wise file into device file system Warning: mem area to be written must have been wiped first. This is already taken care when loading dictionaries. File names can only be 32 bytes long on device SPIFFS usage: mem spiffs upload [-h] -s <fn> -d <fn> options: -h, --help This help -s, --src <fn> source file name -d, --dest <fn> destination file name examples/notes: mem spiffs upload -s local.bin -d dest.bin