PenLUG is: Peninsula Linux Users' Group.
Every user of Linux is belonging to at least one group. GID (Group ID) is used to identify the group. A group can have many users. Also whenever a user is created in Linux a Group is created with the same name. You can find group information in /etc/group file. To display contents of file use command cat /etc/group
The answer to this may surprise you. The largest percentage of cellular phone users, at 66%, fall in to the age group of those 25 - 34. This is followed closely by the 18 - 24 age group, who make up 62% of cellular phone users.
Each file and directory can be marked read-only, writable, and executable. Each file / directory will contain three sets of permissions that can be marked as such, namely the owner, other users in the owners group, and users not in the group.
Many Linux distributions are intended for home users.
The users and developers.
This is the problem, no one really knows. Unlike Windows or OS X, Linux doesn't really have you "register" or phone home to anyone, so no statistic on how many Linux users there are is accurate. I personally estimate Linux users number at least as much as OS X users, though many will not agree with me.
Yes 82% of smokeless tobacco users are male.
Yes, cloud computing exists for Linux users. You can use almost any of the platforms with Linux.
It allows you to switch users.
Some of them.
IPCop, a firewall software geared toward Linux SOHO users, can be downloaded from the IPCop website. It was created by Linux users who were unhappy with the existing firewall availability.