Copyright (C) 2000  M K Saravanan
http://www.mksarav.org

Written on 15th June 2000.
Last modified on Sat Nov 15 01:58:01 SGT 2003

Permission is granted to copy, distribute and/or modify this document
under the terms of the GNU Free Documentation License, Version 1.1 or any
later version published by the Free Software Foundation; with no Invariant
Sections, no Front-Cover Texts and no Back-Cover Texts.  You can download
a copy of the license from http://www.gnu.org/copyleft/fdl.txt

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1.  Check which version of kernel you are running.

	uname 
	uname -r

2.  What is your working directory?

	pwd

3.  What are the directories you found under /

 
	ls -l /

4.  You can find help by using man command.  Try the following:

	man ls
	man mkdir

	To quit from the man, type "q".

5.  Make a directory called "tmp" under your home directory.  For e.g. my
home directory is /home/mksarav

	mkdir /home/mksarav/tmp
	cd /home/mksarav/tmp
	
6.  Write a small program using "pico" editor.  Note down the last two
lines in pico which shows the help message for various command.

	pico test.c

#include<stdio.h>

int main(void)  {

  printf("Hello World\n");
  return 0;

}

Press ^X  (Ctrl & X) to save and exit


7.  Run the test.c program using gcc compiler.

	gcc -o test test.c

Here -o option refers the output file name (test).  test.c is the source
file name.  you can run the compiled program using:

	./test

Here . represent the current directory.  Unlike DOS, unix won't search
the current directory.  So if you refer executable files in current
directory use .


8.  Try the following commands and find out what they are doing.

	who
	w
	date
	finger

9.  Are you aware of file & directory permissions for unix files?  check
it with:

	ls -l

9.  To list the contents of a file use:

	cat test.c

10. To view a text file page by page use "more" (or) "less" command.  
Actually "less" is more than "more" since it allows you to scroll backward
also.  "less" has lot more features. For more details RTFM (Originally
refers "Read The Fine Manual" - commonly called as Read The Fucking Manual
in Unix News group.).  To quit from more, or less type "q".


11.  Try the following:

	cat /usr/doc/HOWTO/DOS-Win-to-Linux-HOWTO | more
	cat /usr/doc/HOWTO/DOS-Win-to-Linux-HOWTO | less
	cat /usr/doc/HOWTO/DOS-Win-to-Linux-HOWTO | pr

Watch the output in the last command using pr.

12.  Now try the following:

	head /usr/doc/HOWTO/DOS-Win-to-Linux-HOWTO
	tail /usr/doc/HOWTO/DOS-Win-to-Linux-HOWTO

	man head
	man tail
	
	Try to extract the first 15 lines using head and last 15 lines
using tail.

Note: You can download the HOWTO documents from http://www.tdlp.org.

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