Bash Scripting
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Next, enter the
echo
command, which tells the system to simply repeat
(or
echo) back to your monitor whatever follows the command.
In this case, we want the system to echo back to us
"Hello, Hackers-Arise!"
,
as done in Listing 8-1. Note that the text or message we want to echo back
must be in double quotation marks.
#! /bin/bash
# This is my first bash script. Wish me luck.
echo "Hello, Hackers-Arise!"
Listing 8-1: Your “Hello, Hackers-Arise!” script
Here, you also see a line that’s preceded by a hash mark (
#
). This is a
comment, which is a note you leave to yourself or anyone else reading the
code to explain what you’re doing in the script. Programmers use com-
ments in every coding language. These comments are not read or executed
by the interpreter, so you don’t need to worry about messing up your code.
They are visible only to humans. The bash shell knows a line is a comment
if it starts with the
#
character.
Now, save this file as
HelloHackersArise with no extension and exit your
text editor.
