≡ Menu


FreeBSD Change User Password Shell Script

How do I change user password using a shell script under FreeBSD operating systems?
[click to continue…]

I use sudo to provide permissions and command execution rights to other users under UNIX and Linux operating systems. However, I noticed something strange about sudo. When executing sudo, it will prompt for the user's password the first time, but sudo no longer requires a password anymore when re-executing it. Why? Is this is a security risk?
[click to continue…]

Understanding /etc/passwd File Format

Can you explain /etc/passwd file format for Linux and UNIX operating systems?
[click to continue…]