first perl program
here is a simple "Hello, World!" program in Perl:
refer to:itfigidea.com#!/usr/bin/perl use strict; use warnings; print "Hello, World!\n";
Here's a breakdown of what's going on in the code:
- The first line (
#!/usr/bin/perl
) is called a shebang and tells the operating system to execute this file using the Perl interpreter. - The next two lines (
use strict;
anduse warnings;
) are called pragmas and enforce stricter rules for variable usage and catch common programming mistakes. - Finally, the
print
statement outputs the string "Hello, World!" to the console followed by a newline character (\n
) to start a new line.
Save the above code in a file with a .pl
extension, such as hello.pl
. Make the file executable using the chmod
command:
chmod +x hello.pl
Then, you can run the script by typing the following command in the terminal:
./hello.pl
This should output the message "Hello, World!" to the console.