Using the -n option. : Perl Command « Language Basics « Perl

Perl

1.	Array
2.	CGI
3.	Class
4.	Data Type
5.	Database
6.	File
7.	GUI
8.	Hash
9.	Language Basics
10.	Network
11.	Regular Expression
12.	Report
13.	Statement
14.	String
15.	Subroutine
16.	System Functions
17.	Win32
18.	XML

Java

Java Tutorial

Java Source Code / Java Documentation

Illustrator Tutorials

GIMP Tutorials

C# / C Sharp

C# / CSharp Tutorial

C# / CSharp Open Source

SQL Server / T-SQL Tutorial

Oracle PL / SQL

Oracle PL/SQL Tutorial

Flash / Flex / ActionScript

VBA / Excel / Access / Word

XML

XML Tutorial

Microsoft Office PowerPoint 2007 Tutorial

Microsoft Office Excel 2007 Tutorial

Microsoft Office Word 2007 Tutorial

Perl » Language Basics » Perl Command

Using the -n option.


  

#!/usr/local/bin/perl -n 



# input line is stored in the system variable $_ 

$line = $_; 

chop ($line); 

printf ("* %-52s *\n", $line);

Related examples in the same category

1.	A program that uses the -0 option.
2.	A program that uses the -l option.
3.	Edit files using the -i option.
4.	The -c Switch checks the Perl syntax without actually executing the Perl commands
5.	The -e switch executes Perl statements at the command line instead of from a script.
6.	The -n Switch: print the contents of a file or search for a line that contains a particular pattern
7.	The -w option passed to the perl command generates a warning about the code itself.
8.	Using -e option to execute the perl statement
9.	Using /e modifier to evaluate
10.	Using two statements with -e option
11.	Using variable with -e option
12.	'#!/usr/bin/perl -w ' tells the perl command to turn on extra warnings with the -w option.
13.	An example of the -a option.
14.	Perl can take its input from a file and send its output to a file using standard I/O redirection.
15.	Executing the Script

www.java2java.com | Contact Us

All other trademarks are property of their respective owners.