This article is part of a longer series covering the n98-magerun power tool
I’m starting a new series here on Magento Quickies covering the
n98-magerun command line tool. This is a nifty utility that automates a lot of the day-to-day drudgery of working with a Magento system, and is a nice compliment to Commerce Bug’s diagnostic information.
This series is appropriate for both newbies and experienced developers. If you can run
ls, you can follow along.
There’s a few different ways to install
n98-magerun. You can clone the github repository, or download the latest
You can download this
phar file via a web browser, or with the
wget command line programs.
wget https://raw.github.com/netz98/n98-magerun/master/n98-magerun.phar curl -o n98-magerun.phar https://raw.github.com/netz98/n98-magerun/master/n98-magerun.phar
After downloading the file, you can test it by running the following command
$ php n98-magerun.phar
This should result in help output similar to the following.
$ php n98-magerun.phar ___ ___ _ _/ _ ( _ )___ _ __ __ _ __ _ ___ _ _ _ _ _ _ | ' _, / _ ___| ' / _` / _` / -_) '_| || | ' |_||_/_/___/ |_|_|___,___, ___|_| _,_|_||_| |___/ n98-magerun version 1.61.3 by netz98 new media GmbH Usage: [options] command [arguments] Options: --help -h Display this help message. --quiet -q Do not output any message. --verbose -v Increase verbosity of messages. --version -V Display this application version. --ansi Force ANSI output. --no-ansi Disable ANSI output. --no-interaction -n Do not ask any interactive question. Available commands: help Displays help for a command install Install magento list Lists commands mysql-client Opens mysql client by database config from local.xml open-browser Open current project in browser (experimental) self-update Updates n98-magerun.phar to the latest version. selfupdate Updates n98-magerun.phar to the latest version. shell Runs n98-magerun as shell uninstall Uninstall magento (drops database and empties current folder [... commands ommited ...] extension extension:download Download magento-connect package extension:install Install magento-connect package extension:list List magento connection extensions extension:search List magento connection extensions extension:upgrade Upgrade magento-connect package [... commands ommited ...]
This help output lists all the commands available via
n98-magerun. You can get detailed help for a specific command by passing in
help as the first paramater to the CLI program. For example if you wanted help on the
extension:list command, just enter
$ php n98-magerun.phar help extension:list
and you’ll see something like the following
Usage: extension:list [search] Aliases: extension:search Arguments: search Search string Options: --help (-h) Display this help message. --quiet (-q) Do not output any message. --verbose (-v) Increase verbosity of messages. --version (-V) Display this application version. --ansi Force ANSI output. --no-ansi Disable ANSI output. --no-interaction (-n) Do not ask any interactive question.
While terse, these help entries do give you a list of arguments for the command. For example, reading the above we see that
extension:list has a
search argument, which will allow us to list specific Magento extensions. We’ll come back to this in a bit, but first we need to learn how to run commands
Let’s try running the
extension:list command from above. To run a command, just pass it in as the first argument. The command is the entire colon separated string.
If you try running
$ php n98-magerun.phar extension:list
you’ll probably see the following output.
[RuntimeException] Magento folder could not be detected extension:list [search]
Drat! An error. The first thing you need to know about running
n98-magerun commands is they need to be run from within your magento folder.
Give the following a try instead (substituting your Magento path)
$ cd /path/to/magento $ php /path/to/n98-magerun.phar extension:list
This time you should see a huge list of extensions output to your screen.
+-----------------------------------------+--------------------+--------+ | Package | Version | Stabi | +-----------------------------------------+--------------------+--------+ | Lib_Google_Checkout | 188.8.131.52 | stable | | ... almost 4,000 extensions snipped ... | | | | Contacts_Captcha | 0.1.0 | stable | +-----------------------------------------+--------------------+--------+
Success! You’ve successfully run your first
You don’t need to be at the top of your Magento directory hierarchy to run commands. The
n98-magerun program will correctly detect your Magento folder no matter how deep you are — even if the folders are symlinks. For example, all of the following commands will work
$ cd /path/to/magento/app/code/community $ php /path/to/n98-magerun.phar extension:list $ cd /path/to/magento/app/design/frontend $ php /path/to/n98-magerun.phar extension:list
Remember the help text we saw earlier?
Usage: extension:list [search] Aliases: extension:search Arguments: search Search string
This indicates that
n98-magerun has a single
search parameter, which means running the command with
Mage as the second parameter
$ php /path/to/n98-magerun.phar extension:list Mage
will filter out any extension that doesn’t have
Mage in the name. In other words, it will
search for extensions with Mage in the name.
It’s often necessary to make intuitive leaps like this when working with command line tools. Interpreting phrases like
Search string may seem frustrating at first, but every command line tool has its own logic and culture. After a few days of use you’ll start to get the feel for these sorts of intuitive jumps, and there’s always the Magento Stack Exchange in the meantime.
We’ll finish today with a quick lesson on general shell scripting. The command we’ve been using to run
$ php /path/to/n98-magerun.phar extension:list Mage
is a little verbose. Let’s take some steps to make running
n98-magerun as simple as running any other command line program.
The first step is getting rid of the leading
php. It’s possible to run PHP scripts as plain old
*nix* executables by making them executable. Use the
chmod command to do this.
$ chmod +x /path/to/n98-magerun.phar
Here we’re using the
chmod command to “add” (the
+) the executable bit (the
x) to the file
/path/to/n98-magerun.phar. For those new to
*nix, this tells the system its allowed to run this file as a program.
After doing the above, we’ll be able to run
n98-magerun with the following
$ /path/to/n98-magerun.phar extension:list
For experienced PHP folks, this works because the first line of the
phar archive is
Removing the Path
There’s still the problem of needing to traverse the full
/path/to/n98-magerun.phar. You have a few options here — we’re going to talk about
*nix aliasing, but for the more experienced folks there’s no reason you can’t copy the
phar into a location your
$PATH can see, add the
/path/to/n98-magerun.phar directory to your
$PATH, or use a symlink.
alias command allows you to assign a shorter, simpler command string to run a larger, more complex program. If you run the following from your shell.
$ alias n98-magerun="/path/to/n98-magerun.phar"
you’ll then be able to run the
/path/to/n98-magerun.phar command via the shorter
This will only last as long as the current terminal window is open. To have this alias run automatically whenever you open a terminal window, you’ll need to add a line to the your shell’s startup profile. This is probably the file
.bash_profile, and if it isn’t it means you’re running a shell other than bash. Google around for instructions for your particular shell.
Here’s a quick one liner to add this alias to your bash profile
$ printf "nalias n98-magerun="/path/to/n98-magerun.phar"n" >> ~/.bash_profile
This command automatically appends the
alias command to the
.bash_profile file in your home directory. You could also open this file with your favorite text editor and add the command yourself.
With this alias in place, you should be able to open a terminal window and run the
n98-magerun command with a single word
$ n98-magerun $ n98-magerun extension:list
That’s your introduction to
n98-magerun! In our next few articles we’ll start covering
n98-magerun’s more useful commands, as well as what that weird
phar file really is.