And more!
System tools
Essentials
Checkinstall Install tarballs with your package manager.
Coreutils The basic utilities that should exist on every operating system.
HardInfo A system benchmarking tool.
Kernel Source code for the latest stable kernel release, should you need it.
Memtest86+ Check for faulty memory.
Plop A simple manager for booting OSes, from CD, DVD and USB.
RawWrite Create boot floppy disks under MS-DOS in Windows.
Smart Boot Manager An OS-agnostic manager with an easy-to-use interface.
WvDial Connect with a dial-up modem.
Reading matter
Bookshelf
Advanced Bash-Scripting Guide Go further with shell scripting.
Bash Guide for Beginners Get to grips with Bash scripting.
Bourne Shell Scripting Guide Get started with shell scripting.
The Cathedral and the Bazaar Eric S Raymond’s classic text explaining the advantages of open development.
The Debian Administrator’s Handbook An essential guide for sysadmins.
Introduction to Linux A handy guide full of pointers for new Linux users.
Linux Dictionary The A-Z of everything to do with Linux.
Linux Kernel in a Nutshell An introduction to the kernel written by master hacker Greg Kroah-Hartman.
The Linux System Administrator’s Guide Take control of your system.
Tools Summary A complete overview of GNU tools.