passwd

FreeBSD Change User Password Shell Script

by Vivek Gite on May 31, 2009 · 6 comments

How do I change user password using a shell script under FreeBSD operating systems?

{ 6 comments }

Sudo is Not Prompting For a Password When Re-executed Second Time

by Vivek Gite on February 3, 2008 · 1 comment

Q. 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?

{ 1 comment }

Understanding /etc/passwd File Format

by Vivek Gite on February 22, 2006 · 75 comments

Q. Can you explain /etc/passwd file format for Linux and UNIX operating systems?

{ 75 comments }