There's a lot of hubbub out there now about a security hole in the Unix/Linux family's sudo command. Sudo is the command, which enables normal users to run commands as if they were the root user, aka ...

A vulnerability in the Linux sudo command has been discovered that could allow unprivileged users to execute commands as root. Thankfully, this vulnerability only works in non-standard configurations ...

Back in the early days of Linux, things were exponentially more complicated. The distributions were far less mature and required a particular system account to get things done. That account was root - ...

A vulnerability in the wall command of the util-linux package that is part of the Linux operating system could allow an unprivileged attacker to steal passwords or change the victim's clipboard.

In the example below, the head command fails because it wasn’t run with root-level privilege (e.g., using sudo) and, thus, has no access to the /etc/shadow file.