This article describes how to write and execute a "Hello World" bash script on Linux (Fedora).

1. the prerequisites

• a text editor of your choice (e.g. vi)
• the bash shell

make sure you have installed the bash shell:

#  rpm -qa|grep bash
bash-3.2-20.fc8

If it is not installed yet, you can install it with yum (you need to be root to do that):

# yum install bash

Well, I bet it is already installed :-)

2. write the code

open an empty file with a text editor (e.g. vi):

# vi helloworld.sh

#!/bin/bash
echo "Hello World!"

explanation

#!/bin/bash

This tells the system to use the /bin/bash interpreter to execute the script. You can find out the full path of your bash interpreter by entering the following command:

# which bash
/bin/bash

echo "Hello World!

This prints out the string "Hello World!".

3. make the script executable

# chmod u+x helloworld.sh

4. run the program

you can now execute the script program with:

# ./helloworld.sh
Hello World!

- or -

# bash helloworld.sh
Hello World!

• Add New
• Search

Comments (0)

Write comment

Your Contact Details:

Name:

Email: do not notifynotify

Website:

Comment:

Title:

UBBCode:         -color-aquablackbluefuchsiagraygreenlimemaroonnavyolivepurpleredsilvertealwhiteyellow -size-tinysmallmediumlargehuge

Message:

Security

Please input the anti-spam code that you can read in the image.

Powered by !JoomlaComment 4.0 beta1

!joomlacomment 4.0 Copyright (C) 2009 Compojoom.com . All rights reserved."