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linux how to change the user password (linux command to change the password)

In Linux, to change the user password, you can use the "passwd" command. Please follow the steps below.

1. Log in to the system as the root user.

2. Execute the following command, where "username" is the user name to change the password.　

passwd username

3. You will be prompted to enter a new password. Please note that the password must comply with the system password policy (such as length, case, special characters, etc.).

4、Confirm the new password, the system will ask you to enter the new password again to confirm.

5、On completion, the system will prompt you to change your password successfully.

　　Please note that if you are changing the password of the current login user, you can omit the "username" parameter. In this case, the system will ask you to enter your current password and ask you to enter a new password and confirm it.

　　Also, for system security, it is highly recommended to change your password regularly and to use a strong password to protect your account.

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