Unix/Linux tutorial

Really short Unix/Linux tutorial...

What is Unix?

Unix is multiuser, multitasking operating system which was developed back in 1960s.

What is Linux?

Tux Linux is a clone of the Unix operating system, which runs on regular PC hardware (Intel Pentium, Xeon, AMD Athlon and others now dayz) and it's written from scratch by Linus Torvalds with assistance from a loosely-knit team of hackers across the Net (first release 1991 and development continues). Linux operating system is freely available for download from different Linux vendors. We use RedHat distribution: http://www.redhat.com/software/linux/. More info on Linux http://www.linux.org/info/index.html.

Some basic Unix/Linux commands

Linux has many graphical user interfaces like KDE, Gnome and Afterstep etc. And commands explained here are Unix/Linux shell (bash) commands.

command             what it does?
=================================
cd                  change directories
cp                  copy files and directories
dir                 list directory (more verbose)
lpr                 print files
ls                  list directory
mkdir               make directory
mv                  move/rename files or directories
ps                  List process status (use with: ps -U username)
rm                  remove/delete file
rmdir               remove directory
top                 displays active processes in system (check mtop also)

Linux has great manual pages from all commands. Example, type following command in shell and use space and arrow keys to navigate:

    man cp

Command line text editors

pico, emacs and joe

Graphical text editors