Red Hat ENTERPRISE LINUX WS 2.1 - Przewodnik Instalacji Pobierz pdf (Strona 222)

222 Important Linux features

DONE

INDEX

• How to repeat and change a previously entered command

1. use the arrow keys to get a command back

2. use the arrow keys to move around in the line

use Control-a to move to the beginning of the line

use Control-e to move to the end of the line

3. change the command according to your needs

4. hit the Enter key to execute the command

• How to search for previously entered commands:

type Control-r and enter a string or keyword to search for the last command

containing that string by typing Control-r again, you can search for earlier

commands containing the same string

• Use <TAB> key for filename/command completition:

Not sure how File or command is written? Just enter the first characters and press

<TAB> key, e.g. :

vi /etc/X11/xo<TAB> -> vi /etc/X11/xorg.conf

• How to set the prompt in the bash

The prompt can be changed by defining the environment variable PS1.

1. type cd to change to your home directory

2. edit (e.g. with vi) the file .profile and set PS1; you can include several

items into the prompt, e.g.:

a) the hostname of the computer:

PS1=’\h’

b) the logname of the user:

PS1=’\u’

c) the current directory:

PS1=’\w’

d) the last part of the current directory:

1 2 ... 217 218 219 220 221 222 223 224 225 226 227 ... 271 272

Brak uwag

Red Hat ENTERPRISE LINUX WS 2.1 - Przewodnik Instalacji Strona 222