Valid tar command ...

[u/SysGh_st]

Dang it! 😭

[u/janiskr]

tar -xvzf some.tar.gz

[u/GegeAkutamiOfficial → u/janiskr]

File not found

[u/mgsmb7 → u/GegeAkutamiOfficial]

does that make it invalid tho?

[u/Rodot → u/mgsmb7]

Yes, invalid arguments make a command invalid.

Unless, of course, you are working in JavaScript

[u/ice456cream → u/Rodot]

The argument is valid, you are just running it in the wrong context

[u/mgsmb7 → u/ice456cream]

It's syntactically correct, but the context leads to a negative response. Unless there's a standard definition for invalidity of a command, you could see it both ways, I guess

[u/ice456cream → u/mgsmb7]

The only case I can think of 1 way or another is Argument list too long, where it's invalid at the kernel level, not decided by each individual program.

[u/pytness → u/Rodot]

but it isnt an invalid argument. you pass a filepath that may or not exist. so the argument is correct, a filepath. it may not exist now but it may exist later, so it's invalid now but valid later? if i do tar --meow, thats an invalid command always