Reading and Writing Physical Files in a Shell using Rfile

Want to read source member data from within an IBM i shell environment, such as SSH, QShell, or QP2TERM? Need to copy records from a text file to a physical file? Want a quick way to upload a save file without needing FTP?

IBM i’s Rfile command can do all these things easily. Rfile is designed to be easy to integrate into scripts, so it’s a great tool to have at hand.

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Installing Composer on IBM i

Composer, a tool to manage dependencies in PHP applicationsThe open source Composer tool, which manages PHP project dependencies, has become standard equipment for modern PHP. New to this tool? I recommend this introduction to Composer.

Composer automatically installs or updates required components, known as dependencies, and any others required by those initial components. The required components are defined by the developer in an easy-to-read JSON-formatted text file.

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Save your fingers when using PHP-CLI

In Batch PHP I showed how to call PHP from a command line. For example, with Zend Server 6 or 7 on IBM i, one would launch a PASE command line using the command CALL QP2TERM, or launch QShell using QSH, then type a command such as this:

/usr/local/zendsvr6/bin/php-cli myscript.php

For those of us who use PHP-CLI often, the above command can be a finger-buster. Let’s shorten the path by creating a symbolic link:

cd /usr/bin
ln -s /usr/local/zendsvr6/bin/php-cli phpc

I created the symbolic link in /usr/bin, a directory that is likely to be in any user’s path.

Now try the shortened command:

phpc myscript.php

To test the shortcut without a PHP script, use the -v switch, which requests version information (‘v’ for version) about your PHP installation.

phpc -v

The above command will return version information that starts out something like this:

PHP 5.3.6 (cli) (built: Apr  7 2011 09:37:14)                                
Copyright (c) 1997-2011 The PHP Group                                        
Zend Engine v2.3.0, Copyright (c) 1998-2011 Zend Technologies                
    with Zend Extension Manager v5.1, Copyright (c) 2003-2010, by Zend Techno
    - with Zend Data Cache v4.0, Copyright (c) 2004-2010, by Zend Technologie
s [loaded] [licensed] [disabled]                                             
    - with Zend Guard Loader v3.3, Copyright (c) 1998-2010, by Zend Technolog
ies [loaded] [licensed] [enabled]                                            
    - with Zend Job Queue v4.0, Copyright (c) 2004-2010, by Zend Technologies
 [loaded] [not licensed] [disabled]

By creating a symbolic link to the PHP-CLI binary, practitioners of PHP can speed their work while saving their fingers.

For more about symbolic links, see my article Link up with QShell.