Red Hat ENTERPRISE LINUX WS 2.1 - Guia de Instalação descarregar pdf (Página 224)

224 Important Linux features

DONE

INDEX

this line can be defined in your file .bashrc

Open a new shell and type data to execute the function.

3. use copy and paste

mark text by holding the left mouse button down

paste this text somewhere by clicking the middle mouse button

4. use the Linux shells bash or tcsh

• use the arrow keys up/down to repeat and/or modify previously entered

commands

• use the Tab key to complete commands and paths

5. use a Linux shell script

They are described in the next chapter 13.4.2.

13.4.2 Linux shell scripts

A shell script executes (a series of) Linux commands:

• is an executable text file

• can contain a series of Linux commands

• can contain control loops and variables

example

1. scripta displays the date, current directory and contents:

edit a file scripta and enter:

date

pwd

make scripta executable: chmod a+x scripta

execute the script by typing ./scripta

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Red Hat ENTERPRISE LINUX WS 2.1 - Guia de Instalação Página 224