GNU/Linux Command Line session (1) :

In GNU/Linux everything is a file ... All configurations have files Using the text mode on GNU/Linux Operating System is pretty light .. The following figure shows how does the system work on your GNU/Linux Operating System ( User - Utility - !Shell - Kernel - Hardware )

We have to types of Termianls :

1. Virtual Terminal ---> cause there is no other machine ( as in figure 2 ) " A mainframe with terminals "

1. Terminal Emalaturs ( Pesudo ) ---> from the GUI ( Graphical User Interface )

tty , pts

try using the command tty from any GUI terminal ( pesudo ) , most probably you'll get something like : /dev/pts1 or /dev/pts now use the terminals through Alt+Ctrl+F1 .... F6

The general form of any command is like :

• command ] [
• command -option []
• command -option ] [

[] == argument

$ls -la 

$ls –list

$ls --almost -list

$ls -h

!( h : for human readable )

ls -k is your friend ..

$man -k

What manual page do you want?

usage of man -k is something like :

$man -k kernel

$man -k copy 

$man -k delete 

so you can get use of it when you don't know the specific command to get it's manual directly like

$man cp

( the copying command )

$man mv

( the moving "deleting command - or renaming )

man is the short name of manual and you can use the command info as well which is a documention browsing system

• ___/
• |
• |___/bin

___/boot

___/dev

___/etc

___/home

___/initrd

___/lib

___/lost+found

___/media

___/mnt

___/opt

___/proc

___/root

___/sbin

___/srv

___/sys

___/tmp

___/usr

___/var

Old School ASCII Graphics ;)

the famous command cd cd .. " Up " cd - " Back"