[Linux] Change the password of non-root account

1. Log in to the server with the root account (or an account with sudo permissions)
2. Use commands passwd + 想要修改的用户名, for example: passwd recordyou will be prompted to enter a new password
3. After entering the new password, you will be prompted to enter it again and then just remember it.
4. Seeing passwd: all authentication tokens updated successfullymeans that the modification was successful

Notice:

1. Changing the password does not require restarting the server.
2. You need to have sudo permissions, otherwise you will be prompted for insufficient permissions.
3. The username can /etc/shadowbe found below, as well as the encrypted password, but it is one-way encrypted.