The usermod command allows you to make a lot of different changes to user accounts without having to carefully edit files like /etc/passwd, /etc/shadow and /etc/group ...

To see what today’s date looks like in the shadow file format, try this command: Sandra Henry-Stocker was a programmer, Linux systems administrator, security engineer and Linux journalist for ...

Besides the four belonging to the Linux Kernel Organization ... The perpetrator also had copies of the /etc/shadow files, which overall contained 551 unique username and hashed password pairs.