TweetFollow Us on Twitter

More Finder Scripting

Volume Number: 20 (2004)
Issue Number: 11
Column Tag: Programming

More Finder Scripting

by Benjamin S. Waldie

We've taken a look at some basic Finder scripting, including creating, naming, and updating folders. This month, let's expand a bit further, and begin looking at some other scriptable Finder functionality.

Manipulating Finder objects

In this article, when I refer to a Finder "item" or "object", please note that I am simply referring generically to either a file or a folder.

Opening

We have already seen how the following code can be used to open a folder using the Finder:

tell application "Finder"
	set theFolder to make new folder at desktop with properties {name:"My Folder"}
	open theFolder
end tell

You may also have the need to open a file using the Finder. To simply open a file, the AppleScript syntax is the same:

set theFile to choose file
tell application "Finder"
	open theFile
end tell

In some cases, you may want to open a file using a specific application. For example, let's say that you have a Photoshop or ImageReady droplet, or an AppleScript droplet, and you want to process one or more dropped items. You can do this with AppleScript in the Finder by making use of the using parameter along with the open command.

set theApplication to choose application as alias
set theFile to choose file
tell application "Finder"
	open theFile using theApplication
end tell

Revealing

If you simply want to locate and navigate to an item in the Finder, you can use the reveal command. This will locate the object in the Finder, open a new window if necessary, display and select the specified object.

set theFile to choose file
tell application "Finder"
	reveal theFile
end tell

Moving

Moving files and folders around is another common task involving the Finder. To move a file or folder, use the move command.

set theFile to choose file
set theDestinationFolder to choose folder with prompt "Please select a destination folder:"
tell application "Finder"
	move theFile to theDestinationFolder
end tell

By default, the move command will not automatically replace existing items in the destination location with the same name. If you want to replace existing items in any situation, then you can simply use the replacing parameter to indicate that any existing items should be replaced, if necessary. For example:

tell application "Finder"
	move theFile to theDestinationFolder replacing true
end tell

If you do not want to replace existing items, but you still want to move the item to the destination folder, then you will need to create custom code to handle the situation as you see fit. For example, if you wanted to add a unique numeric suffix to the item name, and then move it, you could use the following code:

set theFile to choose file
set theDestinationFolder to choose folder with prompt "Please select a destination folder:"
tell application "Finder"
	set theFileName to name of theFile
	set thePathToCheck to theDestinationFolder & theFileName as string
	if item thePathToCheck exists then
		set theSuffix to 1
		repeat
			if (item (thePathToCheck & theSuffix) exists) = false then exit repeat
			set theSuffix to theSuffix + 1
		end repeat
		set name of theFile to theFileName & theSuffix
	end if
	move theFile to theDestinationFolder
end tell

Duplicating

To copy an item, you need to use the duplicate command, rather than the copy command. For example:

set theFile to choose file
set theDestinationFolder to choose folder with prompt "Please select a destination folder:"
tell application "Finder"
	duplicate theFile to theDestinationFolder
end tell

As of the writing of this article, the Finder dictionary did indicate the presence of a copy command. However, this command was not yet implemented in the Mac OS X Panther (10.3.3) Finder. In addition, once functional, the copy command will be used to copy items to the clipboard, rather than to copy them from one location to another.

Duplicating is similar to moving, in that it will not automatically replace existing items with the same names. In order to replace existing items, you need to use the replacing parameter.

tell application "Finder"
	duplicate theFile to theDestinationFolder replacing true
end tell

If you do not want to replace existing items in a destination folder, but you still want to copy an item to the destination folder, then you will need to create code to handle this situation. For example:

set theFile to choose file
set theDestinationFolder to choose folder with prompt "Please select a destination folder:"
tell application "Finder"
	set theFileName to name of theFile
	set thePathToCheck to theDestinationFolder & theFileName as string
	if item thePathToCheck exists then
		set theSuffix to 1
		repeat
			if (item (thePathToCheck & theSuffix) exists) = false then exit repeat
			set theSuffix to theSuffix + 1
		end repeat
		set name of theFile to theFileName & theSuffix
	end if
	duplicate theFile to theDestinationFolder
end tell

Deleting

To delete an item, use the delete command:

set theFile to choose file
tell application "Finder"
	delete theFile
end tell

Please note that the delete command will not actually delete an item. Rather, it will move the item to the trash, where it may be retrieved until the trash has been emptied. If you want to fully delete a file, you will need to tell the Finder to empty the trash after performing the deletion. For example:

set theFile to choose file
tell application "Finder"
	delete theFile
	empty the trash
end tell

Keep in mind that by emptying the trash, you will be removing any other items residing in the trash as well.

Getting Object Info

When working with an item in the Finder, you will probably want to retrieve information about the item. You can do this by accessing the properties of the desired object. Common properties shared by both files, folders, and disks can be found under the Finder Items suite in the Finder dictionary.


Figure 1. Finder Dictionary > Finder Item Detail

Some commonly accessed properties of Finder items include the modification date, name, and size of the item. For example:

set theFile to choose file
tell application "Finder"
	set theModDate to modification date of theFile
	set theName to name of theFile
	set theSize to size of theFile
end tell

In addition to these common properties, files, folders, and disks also have additional properties specific to their particular class. For example, files have a file type and creator type property, whereas folders and disks have other properties not possessed by files. For example:

set theFile to choose file
tell application "Finder"
	set theFileType to file type of theFile
	set theCreatorType to creator type of theFile
end tell

Some developers prefer to avoid scripting the Finder when possible, and resort instead to using a scripting addition to access certain properties of files and folders. The Standard Additions scripting addition, which is installed with Mac OS X, contains a command for just this task - info for. This command may be used to retrieve a variety of properties for files and folders, such as name, modification date, size, and more. For example:

  • set theFile to choose file
  • set theFileInfo to info for theFile
  • set theName to name of theFileInfo
  • set theModDate to modification date of theFileInfo
  • set theSize to size of theFileInfo

What About System Events?

If you have done some scripting in Mac OS X before, then you may be somewhat familiar with the System Events background application. This application allows you to automate various system related activities.


Figure 2. The System Events Dictionary Window

Some of the commands in the System Events dictionary are very similar to commands found in the Finder dictionary, including the delete, move, and open commands. For these specific commands, System Events may be used instead of the Finder. However, please note that certain parameters, which are present when scripting the Finder, are not present when scripting System Events. For example, when moving an item using System Events, there is not currently a way to specify whether existing items should be overwritten. When using this command, items will never be overwritten.

set theFile to (choose file) as string
set theDestinationFolder to choose folder
tell application "System Events"
	move disk item theFile to theDestinationFolder
end tell

The System Events dictionary has expanded significantly with the last few major Mac OS X releases, and I expect it to continue to expand in the future. My guess is that more Finder-like functionality will continue to be built into System Events with every major OS release. System Events contains much more than the few commands I mentioned above, and I encourage you to explore it in greater detail in order to find out more about what System Events has to offer.

In Closing

This month's article should take you a little further down the road of Finder scripting. For some editable examples of Finder scripting, you may want to check out the example Finder scripts included with Mac OS X. These can be found in the Library > Scripts > Finder Scripts folder on your machine. In addition, Apple's AppleScript web site contains some Finder scripts, which can be triggered from the Finder's toolbar. For additional information about all of these scripts, as well as links to download the toolbar scripts, please visit http://www.apple.com/applescript/finder/.

Until next time, keep scripting!


Benjamin Waldie is president of Automated Workflows, LLC, a firm specializing in AppleScript and workflow automation consulting. In addition to his role as a consultant, Benjamin is an evangelist of AppleScript, and can frequently be seen presenting at Macintosh User Groups, Seybold Seminars, and MacWorld. For additional information about Benjamin, please visit http://www.automatedworkflows.com, or email Benjamin at applescriptguru@mac.com.applescriptguru@mac.com.

 
AAPL
$96.13
Apple Inc.
+0.53
MSFT
$42.86
Microsoft Corpora
-0.30
GOOG
$566.07
Google Inc.
-5.53

MacTech Search:
Community Search:

Software Updates via MacUpdate

Data Rescue 3.2.4 - Recover lost data on...
Data Rescue is a robust and reliable hard-drive recovery solution for your Mac. Recover lost or deleted files, mount corrupted drives, and more -- Data Rescue offers complete relief from crippling... Read more
Adobe Lightroom 5.6 - Import, develop, a...
Adobe Lightroom software helps you bring out the best in your photographs, whether you're perfecting one image, searching for ten, processing hundreds, or organizing thousands. Create incredible... Read more
OneNote 15.2 - Free digital notebook fro...
OneNote is your very own digital notebook. With OneNote, you can capture that flash of genius, that moment of inspiration, or that list of errands that’s too important to forget. Whether you’re at... Read more
iStat Menus 4.22 - Monitor your system r...
iStat Menus lets you monitor your system right from the menubar. Included are 8 menu extras that let you monitor every aspect of your system. Some features: CPU -- Monitor cpu usage. 7 display... Read more
Ember 1.8 - Versatile digital scrapbook....
Ember (formerly LittleSnapper) is your digital scrapbook of things that inspire you: websites, photos, apps or other things. Just drag in images that you want to keep, organize them into relevant... Read more
OmniPlan 2.3.6 - Robust project manageme...
With OmniPlan, you can create logical, manageable project plans with Gantt charts, schedules, summaries, milestones, and critical paths. Break down the tasks needed to make your project a success,... Read more
Command-C 1.1.1 - Clipboard sharing tool...
Command-C is a revolutionary app which makes easy to share your clipboard between iOS and OS X using your local WiFi network, even if the app is not currently opened. Copy anything (text, pictures,... Read more
Knock 1.1.7 - Unlock your Mac by knockin...
Knock is a faster, safer way to sign in. You keep your iPhone with you all the time. Now you can use it as a password. You never have to open the app -- just knock on your phone twice, even when it's... Read more
Mellel 3.3.6 - Powerful word processor w...
Mellel is the leading word processor for OS X and has been widely considered the industry standard since its inception. Mellel focuses on writers and scholars for technical writing and multilingual... Read more
LibreOffice 4.3.0.4 - Free Open Source o...
LibreOffice is an office suite (word processor, spreadsheet, presentations, drawing tool) compatible with other major office suites. The Document Foundation is coordinating development and... Read more

Latest Forum Discussions

See All

Bio Inc. is $0.99 for the Weekend, Recei...
Bio Inc. is $0.99 for the Weekend, Receives Small Update Posted by Ellis Spice on August 1st, 2014 [ permalink ] Universal App - Designed for iPhone and iPad | Read more »
Happy 7th Birthday Readdle! Thank You fo...
Happy 7th Birthday Readdle! | Read more »
Sharknado: The Video Game Review
Sharknado: The Video Game Review By Lee Hamlet on August 1st, 2014 Our Rating: :: SHARKNA-DON'TUniversal App - Designed for iPhone and iPad Sharknado: The Video Game brings the craziness of the movies to iOS, though it quickly... | Read more »
Clima (Weather)
Clima 1.0 Device: iOS iPhone Category: Weather Price: $.99, Version: 1.0 (iTunes) Description: Clima show you all weather information, just beautifully simple. A series of color bars can tell you at a glance exactly current... | Read more »
Sticky Soccer Review
Sticky Soccer Review By Andrew Fisher on August 1st, 2014 Our Rating: :: STICK THIS GAMEUniversal App - Designed for iPhone and iPad Sticky Soccer puts too much emphasis on the ‘sticky’ and not enough on the ‘Soccer’ or ‘Fun’.   | Read more »
Graphics-less Apocalyptic Adventure A Da...
Graphics-less Apocalyptic Adventure A Dark Room Goes Free for a Limited Time Posted by Rob Rich on August 1st, 2014 [ permalink ] | Read more »
Fraud Tycoon Review
Fraud Tycoon Review By Rob Thomas on August 1st, 2014 Our Rating: :: UNHEALTHY CREDITUniversal App - Designed for iPhone and iPad Fraud Tycoon is a half-baked, messy, promotional tie-in that does their sponsor no favors whatsoever... | Read more »
Guardians of the Galaxy: The Universal W...
Guardians of the Galaxy: The Universal Weapon is on Sale for the Weekend Posted by Rob Rich on August 1st, 2014 [ permalink ] Universal App - Designed for iPhone and iPad | Read more »
Mister Beam Review
Mister Beam Review By Jordan Minor on August 1st, 2014 Our Rating: :: ILLUMINATINGUniversal App - Designed for iPhone and iPad Mister Beam’s puzzles are great. But its platforming? Not so much.   | Read more »
Hook Some More Fun With MapHook’s New Up...
Hook Some More Fun With MapHook’s New Update Posted by Jessica Fisher on August 1st, 2014 [ permalink ] iPhone App - Designed for the iPhone, compatible with the iPad | Read more »

Price Scanner via MacPrices.net

13-inch MacBook Airs on sale for $100 off MSR...
B&H Photo has the new 2014 13″ MacBook Airs on sale $100 off MSRP. Shipping is free, and B&H charges NY sales tax only. They also include free copies of Parallels Desktop and LoJack for... Read more
16GB iPad Air on sale for $399, save $100
Best Buy is offering the 16GB WiFi iPad Air for $399.99 on their online store for a limited time. Their price is $100 off MSRP. Choose free shipping or free store pickup (if available). Price is for... Read more
All Over For Tablets Or Just A Maturing, Evol...
CNN’s David Goldman weighs in on tablet sector doom and gloom, asking rhetorically: “Is this the beginning of the end for the tablet?” Answering that, he contends that hysteria and panic are... Read more
Letterspace 1.0.1 – New Free iOS Text Editor...
Bangkok, Thailand based independent developer Sittipon Simasanti has released Letterspace, a new text editor for iPhone, iPad, and iPod touch devices. Letterspace is a note taking app with an... Read more
Save up to $130 on an iPad mini with Apple re...
The Apple Store has Certified Refurbished 2nd generation iPad minis with Retina Displays available for up to $130 off the cost of new models, starting at $339. Apple’s one-year warranty is included... Read more
iPad Cannibalization Threat “Overblown”
Seeking Alpha’s Kevin Greenhalgh observes that while many commentators think Apple’s forthcoming 5.5-inch panel iPhone 6 will cannibalize iPad sales, in his estimation, these concerns are being... Read more
Primate Labs Releases July 2014 MacBook Pro P...
Primate Labs’ John Poole has posted Geekbench 3 results for most of the new MacBook Pro models that Apple released on Tuesday. Poole observes that overall performance improvements for the new MacBook... Read more
Apple Re-Releases Bugfixed MacBook Air EFI Fi...
Apple has posted a bugfixed version EFI Firmware Update 2.9 a for MacBook Air (Mid 2011) models. The update addresses an issue where systems may take longer to wake from sleep than expected, and... Read more
Save $50 on the 2.5GHz Mac mini, plus free sh...
B&H Photo has the 2.5GHz Mac mini on sale for $549.99 including free shipping. That’s $50 off MSRP, and B&H will also include a free copy of Parallels Desktop software. NY sales tax only. Read more
Save up to $140 on an iPad Air with Apple ref...
Apple is offering Certified Refurbished iPad Airs for up to $140 off MSRP. Apple’s one-year warranty is included with each model, and shipping is free. Stock tends to come and go with some of these... Read more

Jobs Board

Position Opening at *Apple* - Apple (United...
**Job Summary** The Apple Store is a retail environment like no other - uniquely focused on delivering amazing customer experiences. As an Expert, you introduce people Read more
Position Opening at *Apple* - Apple (United...
**Job Summary** At the Apple Store, you connect business professionals and entrepreneurs with the tools they need in order to put Apple solutions to work in their Read more
*Apple* Retail - Multiple Positions (US) - A...
Sales Specialist - Retail Customer Service and Sales Transform Apple Store visitors into loyal Apple customers. When customers enter the store, you're also the Read more
Sr. Product Leader, *Apple* Store Apps - Ap...
**Job Summary** Imagine what you could do here. At Apple , great ideas have a way of becoming great products, services, and customer experiences very quickly. Bring Read more
Sr Software Lead Engineer, *Apple* Online S...
Sr Software Lead Engineer, Apple Online Store Publishing Systems Keywords: Company: Apple Job Code: E3PCAK8MgYYkw Location (City or ZIP): Santa Clara Status: Full Read more
All contents are Copyright 1984-2011 by Xplain Corporation. All rights reserved. Theme designed by Icreon.