MEGAcmd/contrib/docs/commands/passwd.md

passwd

Modifies user password

Usage: passwd [-f] [--auth-code=XXXX] newpassword

Notice that modifying the password will close all your active sessions
 in all your devices (except for the current one)

 Please, avoid using passwords containing " or '

Options:
 -f   	Force (no asking)
 --auth-code=XXXX	Two-factor Authentication code. More info: https://mega.nz/blog_48