> Is there a market for non-free CLI tools?
Yes, the most popular example I know of is FileBot[0]. It used to be free; it went commercial a short while back. Many people do indeed pay the yearly (or lifetime) subscription for it.
Yes, the most popular example I know of is FileBot[0]. It used to be free; it went commercial a short while back. Many people do indeed pay the yearly (or lifetime) subscription for it.
Other non-free category are media encoders/decoders (with patents behind).
The other cmdline tool I remember it's non-free is tarsnap because there is a service behind.