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How can I change root password with one line command on NetBSD? On FreeBSD, it's something like this

echo "password" | pw mod user root -h 0 ;
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This could be the way of doing it:mail-index.netbsd.org/netbsd-users/2002/08/03/0005.html –  nwildner Jun 14 '13 at 14:15

2 Answers 2

NetBSD does not support the pw command in its default install. You can:

  1. Compile the pw command for NetBSD and install it on your systems
  2. Write a utility that performs the equivalent functionality
  3. Update the password by manipulating the shadow file directly

Note that depending on your script you should probably be using -H (and supplying an appropriately-encrypted password) instead of -h.
Passing unencrypted passwords around the system (especially if you're doing something like echo "password") is a Bad Idea as it can result in exposing your password to any logged in user (or service).

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Use usermod with -p switch. It's included with base system, no need to build pw.

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