`command` vs `type` - Locate program file in user's PATH [duplicate]

Question

This question already has answers here:

Why not use "which"? What to use then? (6 answers)

Closed 11 years ago.

I need locate program file in user's PATH. I found few solution, the best are command and type.

Which is better, faster, UNIX-like way and why?

command -v <application>
type -p <application>

• cuonglm: You can refer this: unix.stackexchange.com/questions/85249/…
• Mateusz Jagiełło: I cannot find this, it's explain everything: unix.stackexchange.com/a/85250/31887. Thanks @Gnouc!
• mikeserv: just use command -p ${this is run with a path guaranteed to find all standard utilities}

Answer 1

The variant command -v is the defined in the POSIX standard,
so it is exactly the "UNIX-like way to do it".

For the standard, see POSIX - Shell & Utilities - command

For all the details, and still much more details: Why not use "which"? What to use then?