TweetFollow Us on Twitter

Backups on a Budget

Volume Number: 23 (2007)
Issue Number: 08
Column Tag: Programming

Backups on a Budget

Build your own backup utility with AppleScript Studio

by José R.C. Cruz

Introduction

Today, we will look into three backup tools that ship with Mac OS X. We will learn how to use these tools through the Terminal window. We will then use AppleScript studio to give one of these tools a user-friendly interface.

Backups, A Quick Primer

The reason for backups

The value of a computer lies not in its hardware or software features. It lies in the data stored on its hard drive, data that are critical to a user's daily activities. Some examples of critical data include active files such as documents, and web pages. Others include static ones such as fonts, plug-ins, and preferences files.

The potential for data loss is a harsh reality in any computing situation. Losing some, if not all, of these files can be disruptive and costly in terms of time and money. If the affected volume is largely intact, users can use specialized software to try to recover the lost files. But this type of recovery becomes ineffective when the volume itself is lost or destroyed. A more effective solution is to use a backup method.

Types of backups

The basic idea of a backup is to maintain copies of critical data from the source media. These copies are stored in a separate backup volume. That volume is then moved to a secure site after the backup. In the event of data loss, the backup media is retrieved from its site. Copies of affected data are then transferred from the volume back onto the target.

Backup systems fall into two categories. The first category groups these systems in terms of how the data is stored. The following are three basic types of systems in this category.

a. unstructured – An unstructured backup (Figure 1) stores the data as a simple collection. It does not organize the data in any meaningful form. It also does not keep track of which data was revised or removed in the computer later on. Instead, users have to do the extra steps needed to manage the backed up data.


Figure 1. An unstructured backup.

b. full+incremental – In a full+incremental backup (Figure 2), the first backup consists of all the data chosen by the user. This is also known as a full store. Then later backups consist only of data that were either revised or removed. All affected data are stored in a special store known as an incremental. The backup process then places each incremental in front of the full store. Restoring the latest data set consists of two steps. First, the process restores the full store back onto the computer. It then updates the restored data with each incremental, starting from the oldest to the newest.


Figure 2. A full+incremental backup.

c. mirror+incremental – The mirror+incremental works in the same fashion as the full+incremental. But they differ| in how they manage their incrementals. The mirror+incremental (Figure 3) updates its full store with the latest data revisions. It moves older revisions of the data into an incremental. It also takes the same approach for those data that were deleted. Then, it places each incremental after the full store. Now, restoring the latest data state is a simple process. All that is required is to copy the full store back onto the computer.


Figure 3. A mirror+incremental backup.

The second category groups backup systems in terms of the type of data being backed up. Again, there are three basic types in this category.

a. file-directory copy – The backup store consists of files and directories from the target (Figure 4). Most backup systems use native system calls to copy the data onto the backup volume. Some use their own routines to create the copies.


Figure 4. A file-directory copy backup.

b. filesystem dump – The backup store consists of the filesystem data of the target (Figure 5). This data can either be the entire filesystem or just the parts that have changed. Some backup systems use native system calls to copy the filesystem data onto the backup volume. Some use specialized tools, others a server process.


Figure 5. A filesystem dump backup.

c. block-level incremental – The backup store consists of the actual drive blocks from the target (Figure 6). Backup systems use low-level drivers to copy the blocks containing critical data onto the backup volume. This method requires close integration between the backup system and the target.


Figure 6. A block+incremental backup.

The Backup Tools

Mac OS X comes with a number of shell tools that can be used to create backups. Readers need only to start a Terminal session in order to use these tools. So, let's take a look at three of these tools.

The dump and restore tools

The dump tool creates a backup of the target filesystem. This tool examines the target media and decides which filesystem structures should be backed up. The tool is located in the /sbin directory, and it is available to all users.

The basic syntax of the dump tool is as follows.

dump –backup_level -f backup_media target_data

The tool supports other command options as well. To view these options, type info dump at the Terminal prompt.

The backup_level option sets the type of backup to be done. To do a full backup, set this option to 0. To do an incremental backup, set it to a value in the range of 1 to 9. If this option is not set, the tool will assume a value of 1.

The backup_media parameter sets the location of the backup volume. The location can be a device node, a separate file, or stdout. For example, if the backup volume is /dev/disk5, then pass the node as follows.

   dump -f /dev/disk5 target_data

Finally, the target_data parameter sets the location of the data on the target volume. This can be either a directory or the entire volume itself.

The opposite of the dump tool is the restore tool. This tool retrieves the backed up filesystem data and puts it back onto the target volume. It is also located in the /sbin directory, and available to all users.

The basic syntax for the restore tool is shown below.

restore <-r | -t> -f backup_media

The -r option restores the filesystem data from backup_media onto the current directory. The -t option lists the files contained in the backup. The tool supports other options as well. To view these options, type info restore at the Terminal prompt.

The dump and restore tools do have one shortcoming: they lack support for the HFS+ filesystem. Any attempts to backup an HFS+ volume will generate the following error message.

   DUMP: bad sblock magic number

Nevertheless, these same tools will work if the target volume is formatted as UFS.

The tar tool

An alternative to the dump and restore tools is the tar tool. The basic syntax of the tool is shown below.

   tar backup_options --file=backup_media target_data

Once again, the backup_media parameter sets the location of the backup volume. It can either be a device node or an actual file. The target_data parameter sets the location of the data on the target volume. It can either be a file, a list of files or a directory.

The backup_options parameters control the backup and recovery process. It can consist of one or more command options. The tar tool supports a wide range of command options. However, we will focus only on those options that are relevant to the topic.

Assume that we want to back up our web pages in the directory Sites, which is located in our home directory. To create a basic full backup, type the following statement at the Terminal prompt.

   tar --create --verify --label=full_backup_200704 ¬
            --file=/Volumes/Backup/foobar.tar Sites/*

The tool first creates the backup store, foobar.tar, on the Backup volume. Next, it adds each web page to the store, and verifies that the page is added correctly. Then, the tool assigns the volume label full_backup_200704 to the backup store. This label helps identify this backup from other backups on the same volume.

To list the contents of foobar.tar, use the --list command option.

   tar --list --file=/Volumes/Backup/foobar.tar 

To remove a file from foobar.tar, e.g. Sites/styles/foobar.css, use the --delete option.

   tar --delete --file=/Volumes/Backup/foobar.tar Sites/styles/foobar.css

To retrieve a file from foobar.tar, e.g. Sites/pages/links.htm, use the --get option.

   tar --get --file=/Volumes/Backup/foobar.tar Sites/pages/links.htm

To create a full+incremental backup, the tar tool needs to use a different set of command options. First, create a full backup with the following statement.

tar --create --file=/Volumes/Backup/foobar200704a.tar ¬ --listed-incremental=/Volumes/Backup/log/backup.log Sites/*

The tar tool creates the backup store foobar200704a.tar in /Volumes/Backup. Next, it creates a backup.log file in the directory /Volumes/Backup/log. But make sure to create the log directory before using the above statement. The tool itself will not create the log subdirectory; instead, it will generate an error if that directory is absent.

Now, assume that we made changes to the foobar.html and foobar.css files. To create an incremental backup, type the following statement at the Terminal prompt.

   tar --create --file=/Volumes/Backup/foobar200704b.tar ¬
      --listed-incremental=/Volumes/Backup/log/backup.log Sites/foo/*

The tar tool now creates a second backup store named foobar200704b.tar. Next, it copies the two changed files, foobar.html and foobar.css, into this store, ignoring the other unchanged files. Finally, the tool updates the backup.log file with the new tracking information.

The df tool

The df tool plays a special part in the backup and restore process. The tool displays a list of mounted volumes that can be access from the command-line. It also displays the amount of space available on those volumes. The tool also displays the device nodes assigned to each volume.

The basic syntax of the tool is df display_options, where display_options is one or more command options. To view a list of these options, type info df at the Terminal prompt.

Using the tool is quite straightforward. For instance, to display a list of all mounted volumes, type df at the Terminal prompt. The tool will display a list similar to that shown by Listing 1.

Listing 1. Sample listing of the df tool.

Filesystem     512-blocks   Used          Avail     Capacity   Mounted on
/dev/disk0s3   31195136     15484680      15398512   50%       /
devfs          202          202            0         100%      /dev
fdesc          2            2              0         100%      /dev
<volfs>  1024         1024           0         100%      /.vol
/dev/disk0s5   8126464      4511032        3615432   56%       /Volumes/Backups
/dev/disk0s9   10223616     2551800        7671816   25%       /Volumes/Projects
/dev/disk0s11  3932160      2822352        1109808   72%       /Volumes/Darwin
/dev/disk0s17  47742000     27840584       19901416  58%       /Volumes/Users
automount -nsl [199]0              0         0   100%  /Network

To display only those volumes that are mounted locally, type df –l at the prompt. The output list will now resemble that shown by Listing 2.

Listing 2. Sample listing of df -l.

Filesystem   512-blocks   Used          Avail     Capacity   Mounted on
/dev/disk0s3   31195136    15484680     15398512    50%      /
/dev/disk0s5   8126464     4511032      3615432     56%      /Volumes/Backups
/dev/disk0s9   10223616    2551800      7671816     25%      /Volumes/Projects
/dev/disk0s11  3932160     2822352      1109808     72%      /Volumes/Darwin
/dev/disk0s17  47742000    27840584     19901416    58%     /Volumes/Users

To display the volume capacities using the K, M, G notations, type df -l –h at the prompt. The output will now change to the one shown by Listing 3.

Listing 3. Sample listing of df -l -h.

Filesystem      Size   Used  Avail Capacity  Mounted on
/dev/disk0s3     15G   7.4G   7.3G    50%    /
/dev/disk0s5    3.9G   2.2G   1.7G    56%    /Volumes/Backups
/dev/disk0s9    4.9G   1.2G   3.7G    25%    /Volumes/Projects
/dev/disk0s11   1.9G   1.3G   542M    72%    /Volumes/Darwin
/dev/disk0s17    23G    13G   9.5G    58%    /Volumes/Users

The Backup Utility

We will now use AppleScript Studio to give a graphical interface to the df and tar tools. We will also write a number of scripts to manage the backup and restore process. Most Mac OS X users prefer the comfort and convenience of a user-friendly interface. They find that a graphical interface is much easier to use and remember than a line of command options.

To keep things simple, the utility will only do a full backup. It will store the backed up data in a single tar file named backup.tar. Users can add files, but not directories, to the backup process. Users can also add aliases but the utility will not backup these types of files. Instead, it will backup the actual files referred to by the aliases.

Also, for reasons of length, this article will show only the principal scripts used by the utility. Readers can see the rest of the scripts by downloading the Xcode project, Conserve, from the MacTech website: ftp://ftp.mactech.com/src

The user-interface layout

Our backup utility has a single window, which then contains three tab panel views. The first panel view is the Volumes panel (Figure 7). This panel displays a list of mounted local volumes using the df tool. Selecting a volume enables the Next button. Also, the state of the checkbox Restore data from the volume will decide which panel view will be displayed next.


Figure 7. The Volumes panel view.

Suppose that the checkbox is left unchecked. Then the next panel view to be displayed is the Backup panel (Figure 8). To add file entries to the table, click on the upper right button marked with a <+>. To delete an entry, select the entry and click on the button marked with a <->. To clear all the entries, click on button marked with a <0>. The Backup button (lower right) is enabled only when there is at least one entry on the table; otherwise, it remains disabled.


Figure 8. The Backup panel view.

Now suppose that same checkbox is checked. This time the next panel view to be displayed is the Restore panel (Figure 9). This panel shows all the files contained in the backup.tar file. Selecting one or more entries will enable the Restore button.


Figure 9. The Restore panel view.

Retrieving a list of volumes

Listing 4 shows the getVolumes handler. This method first retrieves a path to the temporary directory in the user's home directory. It then executes the command statement df -l and stores the result in the temporary file vol_list. Also, the contents of the file should resemble that shown in Listing 2.

Listing 4. The getVolumes handler (Conserve.applescript).

to getVolumes()
   local tCMD, tTmp
   
   -- retrieve a path to the temporary folder
   set tTmp to path to temporary items from user domain as string
   set tTmp to POSIX path of tTmp
   
   -- set the temporary file
   set tTmp to tTmp & "vol_list"
   
   -- prepare the script statement
   set tCMD to "df -l > " & tTmp
   
   -- execute the script statement
   do shell script tCMD with altering line endings
   
   -- return the path to the temporary file
   return (tTmp)
end getVolumes

The next step is to extract the device node and volume path from each line of text in the vol_list file. The getVolumeNode handler (Listing 5) extracts the device node of each mounted volume. The getVolumePath handler (Error! Reference source not found. Listing 6) extracts the volume path for that same volume. Both handlers use similar parsing techniques to extract their data. They differ only in the direction taken by each technique.

Listing 5. The getVolumeNode handler (Conserve.applescript).

to getVolumeNode from theDat
   local tVol, tLen, tPos
   local tChr
   
   try
      -- initialize the following locals
      set tVol to ""
      set tLen to length of theDat
      
      repeat with tPos from 1 to tLen
         set tChr to character tPos of theDat
         if (tChr is equal to " ") then
            exit repeat
         else
            set tVol to tVol & tChr
         end if -- (tChr is equal to " ")
      end repeat -- with tPos from 1 to tLen
      
      -- return the string results
      return (tVol)
   on error tErr
      -- return the default string
      return ("")
   end try
end getVolumeNode -- from theDat

Listing 6. The getVolumePath handler (Conserve.applescript).

to getVolumePath from theDat
   local tVol, tLen, tPos
   local tChr, tEnd
   
   try
      -- initialize the following locals
      set tVol to ""
      set tLen to length of theDat
      
      repeat with tPos from tLen to 1 by -1
         set tChr to character tPos of theDat
         if (tChr is equal to " ") then
            exit repeat
         else
            set tVol to (tChr & tVol) as string
         end if -- (tChr is equal to " ")
      end repeat -- with tPos from 1 to tLen
      
      -- test the extracted string
      set tChr to character 1 of tVol
      if (tChr is equal to "/") then
         -- return the string results
         return (tVol)
      else
         -- return a null string
         return ("")
      end if -- (tChr is equal to "/")
      
   on error tErr
      -- return the default string
      return ("")
   end try
end getVolumePath -- from theDat

Performing the backup process

Through the Backup panel (Figure 8), users select the files they want to add to the backup store. Once done, they then click on the Backup button to start the process. This button invokes the saveButton method shown in Listing 7. It also passes the volume path to the selected backup volume as the input argument.

First, the method constructs the path to the backup.tar file. Next, it prepares a date/time stamp, which will serve as the volume label. Then the method sets the following command statement.

tar --file=<path to the backup.tar file> --label=<date/time stamp>

When done, the method starts parsing the file paths that are stored in the list property pData. For the first file path, it executes the following tar statement.

tar --file=<path to the backup.tar file> --label=<date/time stamp> ¬
      --create --verify <target file path>

For the rest of the file paths, it executes a different tar statement.

tar --file=<path to the backup.tar file> --label=<date/time stamp> ¬
    --append <target file path>

Once the method finishes the backup process, it displays a modal dialog to inform the users of its success.

Listing 7. The saveBackup handler (Backup.applescript).

to saveBackup into theVol
   local tVol, tTag, tClk, tTar
   local tBck, tItm, tPth, tNew
   
   -- parameter check
   if (theVol is not equal to null) then
      -- prepare the backup tar file
      set tVol to theVol & "/backup.tar"
      
      -- prepare the time tag
      set tClk to current date
      set tTag to (year of tClk as integer) as string
      set tTag to tTag & (month of tClk as integer) as string
      set tTag to tTag & (day of tClk as integer) as string
      set tTag to tTag & (time of tClk as integer) as string
         
      -- prepare the shell command
      set tTar to "tar --file=" & tVol
      set tTar to tTar & " --label=" & tTag
      
      -- start backing up the files
      set tNew to true
      repeat with tItm in pData
         -- retrieve a path to the file
         set tPth to fpth of tItm
         
         -- is this a new backup?
         if (tNew) then
            -- backup:file:create
            set tNew to false
            set tBck to tTar & " --create --verify "
            set tBck to tBck & tPth
         else
            -- backup:file:update
            set tBck to tTar & " --append "
            set tBck to tBck & tPth
         end if -- (tNew)
         
         -- execute the script
         try
            do shell script tBck
         on error tErr
            log tErr
         end try
      end repeat -- with tItm in pData
      
      -- tell the user that the backup is successful
      display dialog "Backup is successful" buttons {"OK"} ¬
            default button "OK" attached to window "demo"
   end if -- (theVol is not equal to null)
end saveBackup -- into theVol

Performing the recovery process

To perform the recovery process, users first select the files they wanted from the Restore panel (Figure 9). Then they click on the Restore button to start the process. The button invokes the restoreFiles handler shown in Listing 8. It then passes the path to the backup volume as the input argument.

The restoreFiles method first prompts users to select a destination for the restored files. Then it prepares the following command line statement.

   cd <path to the recovery directory>; tar --extract ¬
      --file=<path to the backup.tar file>

Next, the method retrieves the list of files selected from the Restore panel. It then parses through each file, and updates the command line statement as follows.

   cd <path to the recovery directory>; tar --extract ¬
         --file=<path to the backup.tar file> <file to be recovered>

The method then uses the do shell script command to execute the above statement. Once the entire recovery process is finished, the method displays a modal dialog to inform users of its success.

Listing 8. The restoreFiles method (Restore.applescript).

to restoreFiles from theVol
   local tDst, tPth, tSel, tRow
   local tBsh, tTar, t
   
   if (theVol is equal to null) then
      return (false)
   else
      -- prompt the user for a destination volume
      try
         choose folder with prompt "Restore the backed up files into this directory "
         set tDst to result as string
         set tDst to the POSIX path of tDst
      on error tErr
         return (false)
      end try
      
      -- initialize the tar command
      set tTar to "tar --extract --file=" & theVol
      set tTar to tTar & "/backup.tar "
      
      -- initialize the shell command
      set tDst to "cd " & tDst & "; "
      set tDst to tDst & tTar
      
      -- retrieve the selected rows
      set tSel to selected rows of pTable
      if (length of tSel > 0) then
         repeat with tRow in tSel
            -- retrieve the file path
            set tPth to item tRow of pData
            set tPth to fpth of tPth
            
            -- extract the file
            set tBsh to tDst & tPth
            
            try
               do shell script tBsh
            on error tErr
               log tErr
            end try
         end repeat -- with tRow in tSel
         
         -- tell the user that restoration is successful
         display dialog "Restoration is successful" buttons {"OK"} ¬
               default button "OK" attached to window "demo"
      end if -- (length of tSel > 0)
   end if -- (theVol is equal to null)
end restoreFiles -- from theVol

Final Thoughts

Mac OS X already comes with a number of tools for backing up critical files. You can access these tools through the Terminal window, or through AppleScript. You can also use AppleScript Studio to give these tools a nice user-friendly interface.

Backups are an important part of any computing process. They are an effective solution against data loss. Keep in mind, however, that backups are only effective if you do them periodically. Skipping a scheduled backup is tantamount to adding a crack in the proverbial armor. Perhaps this is why Mac OS X 10.5 comes with a continuous backup system known as Time Machine.

Bibliography and References

Free Software Foundation. "Perform Backups and Restoring Files". GNU Tar 1.16.1 (2006 Dec 7). Copyright 1992-2006. Free Software Foundation, Inc. Online: http://www.gnu.org/software/tar/manual/tar.html.

Wikipedia. Backup (2007 Apr 12). Copyright 2007. Wikipedia Foundation, Inc. Online: http://en.wikipedia.org/wiki/Backup.

Wiebe, James. "Types of Backup Systems". Backups for Everyone. Copyright 2007. WiebeTech LLC. Online: http://www.wiebetech.com/whitepapers.php.


JC is a freelance engineering writer who lives happily in North Vancouver, British Columbia. He divides his time between writing technical articles, and teaching origami at his district's public library. He can be reached at anarakisware@icmail.net.

 

Community Search:
MacTech Search:

Software Updates via MacUpdate

DaisyDisk 4.8 - $9.99
DaisyDisk allows you to visualize your disk usage and free up disk space by quickly finding and deleting big unused files. The program scans your disk and displays its content as a sector diagram... Read more
VMware Fusion 11.5.0 - Run Windows apps...
VMware Fusion and Fusion Pro - virtualization software for running Windows, Linux, and other systems on a Mac without rebooting. The latest version includes full support for Windows 10, macOS Mojave... Read more
Apple Configurator 2.10 - Configure and...
Apple Configurator makes it easy to deploy iPad, iPhone, iPod touch, and Apple TV devices in your school or business. Use Apple Configurator to quickly configure large numbers of devices connected to... Read more
Spotify 1.1.15.448. - Stream music, crea...
Spotify is a streaming music service that gives you on-demand access to millions of songs. Whether you like driving rock, silky R&B, or grandiose classical music, Spotify's massive catalogue puts... Read more
MenuMeters 1.9.8 - CPU, memory, disk, an...
MenuMeters is a set of CPU, memory, disk, and network monitoring tools for Mac OS X. Although there are numerous other programs which do the same thing, none had quite the feature set I was looking... Read more
Blocks 3.5.2 - RapidWeaver plug-in; divi...
Blocks is a plugin for RapidWeaver. It allows you to place blocks of text, graphics, and even raw HTML onto your page wherever you like. Drag blocks around, resize them, and even overlap content. All... Read more
Live Home 3D Pro 3.7 - $49.99
Live Home 3D Pro is powerful yet intuitive home design software that lets you build the house of your dreams right on your Mac, iPhone or iPad. It has every feature of Live Home 3D, plus some... Read more
Ableton Live 10.1.1 - Record music using...
Ableton Live lets you create and record music on your Mac. Use digital instruments, pre-recorded sounds, and sampled loops to arrange, produce, and perform your music like never before. Ableton Live... Read more
BetterTouchTool 3.202 - Customize multi-...
BetterTouchTool adds many new, fully customizable gestures to the Magic Mouse, Multi-Touch MacBook trackpad, and Magic Trackpad. These gestures are customizable: Magic Mouse: Pinch in / out (zoom)... Read more
Fission 2.4.6 - Streamlined audio editor...
Fission can crop and trim audio, paste in or join files, or just rapidly split one long file into many. It's streamlined for fast editing. Plus, it works without the quality loss caused by other... Read more

Latest Forum Discussions

See All

Marvel Strike Force is adding Agent Coul...
Marvel Strike Force, the popular squad-based RPG, is set to receive a bunch of new content over the next few weeks. [Read more] | Read more »
Lots of premium games are going free (so...
You may have seen over the past couple weeks a that a bunch of premium games have suddenly become free. This isn’t a mistake, nor is it some last hurrah before Apple Arcade hits, and it’s important to know that these games aren’t actually becoming... | Read more »
Yoozoo Games launches Saint Seiya Awaken...
If you’re into your anime, you’ve probably seen or heard of Saint Seiya. Based on a shonen manga by Masami Kurumada, the series was massively popular in the 1980s – especially in its native Japan. Since then, it’s grown into a franchise of all... | Read more »
Five Nights at Freddy's AR: Special...
Five Nights at Freddy's AR: Special Delivery is a terrifying new nightmare from developer Illumix. Last week, FNAF fans were sent into a frenzy by a short teaser for what we now know to be Special Delivery. Those in the comments were quick to... | Read more »
Rush Rally 3's new live events are...
Last week, Rush Rally 3 got updated with live events, and it’s one of the best things to happen to racing games on mobile. Prior to this update, the game already had multiplayer, but live events are more convenient in the sense that it’s somewhat... | Read more »
Why your free-to-play racer sucks
It’s been this way for a while now, but playing Hot Wheels Infinite Loop really highlights a big issue with free-to-play mobile racing games: They suck. It doesn’t matter if you’re trying going for realism, cart racing, or arcade nonsense, they’re... | Read more »
Steam Link Spotlight - The Banner Saga 3
Steam Link Spotlight is a new feature where we take a look at PC games that play exceptionally well using the Steam Link app. Our last entry talked about Terry Cavanaugh’s incredible Dicey Dungeons. Read about how it’s a great mobile experience... | Read more »
Combo Quest (Games)
Combo Quest 1.0 Device: iOS Universal Category: Games Price: $.99, Version: 1.0 (iTunes) Description: Combo Quest is an epic, time tap role-playing adventure. In this unique masterpiece, you are a knight on a heroic quest to retrieve... | Read more »
Hero Emblems (Games)
Hero Emblems 1.0 Device: iOS Universal Category: Games Price: $2.99, Version: 1.0 (iTunes) Description: ** 25% OFF for a limited time to celebrate the release ** ** Note for iPhone 6 user: If it doesn't run fullscreen on your device... | Read more »
Puzzle Blitz (Games)
Puzzle Blitz 1.0 Device: iOS Universal Category: Games Price: $1.99, Version: 1.0 (iTunes) Description: Puzzle Blitz is a frantic puzzle solving race against the clock! Solve as many puzzles as you can, before time runs out! You have... | Read more »

Price Scanner via MacPrices.net

Get one of Apple’s new 2019 iPhone 11 models...
Boost Mobile is offering the new 2019 Apple iPhone 11, iPhone 11 Pro, and 11 Pro Max for $100 off MSRP. Their discount reduces the cost of an iPhone 11 to $599 for the 64GB models, $899 for the 64GB... Read more
13″ 1.4GHz Silver MacBook Pros on sale for $1...
B&H Photo has new 2019 13″ 1.4GHz 4-Core Touch Bar Silver MacBook Pros on sale for $100 off Apple’s MSRP. Overnight shipping is free to many addresses in the US. These are the same MacBook Pros... Read more
4-core and 6-core 2018 Mac minis available at...
Apple has Certified Refurbished 2018 Mac minis available on their online store for $120-$170 off the cost of new models. Each mini comes with a new outer case plus a standard Apple one-year warranty... Read more
$250 prepaid Visa card with any Apple iPhone,...
Xfinity Mobile will include a free $250 prepaid Visa card with the purchase of any new iPhone, new line activation, and transfer of phone number to Xfinity Mobile. Offer is valid through October 27,... Read more
Sprint is offering the 64GB Apple iPhone 11 P...
Sprint has the new 64GB iPhone 11 Pro available for $12.50 per month for new customers with an eligible trade-in in of iPhone 7 or newer. That’s down from their standard monthly lease of $41.67. The... Read more
Final week: Apple’s 2019 Back to School Promo...
Purchase a new Mac using Apple’s Education discount, and take up to $400 off MSRP. All teachers, students, and staff of any educational institution with a .edu email address qualify for the discount... Read more
Save $30 on Apple’s AirPods at these reseller...
Amazon is offering discounts on new 2019 Apple AirPods ranging up to $30 off MSRP as part of their Labor Day sale. Shipping is free: – AirPods with Charging Case: $144.95 $15 off MSRP – AirPods with... Read more
Preorder your Apple Watch Series 5 today at A...
Amazon has Apple Watch Series 5 GPS models available for preorder and on sale today for $15 off Apple’s MSRP. Shipping is free and starts on September 20th: – 40mm Apple Watch Series 5 GPS: $384.99 $... Read more
21″ iMacs on sale for $100 off Apple’s MSRP,...
B&H Photo has new 21″ Apple iMacs on sale for $100 off MSRP with models available starting at $999. These are the same iMacs offered by Apple in their retail and online stores. Overnight shipping... Read more
2018 4 and 6-Core Mac minis on sale today for...
Apple resellers are offering new 2018 4-Core and 6-Core Mac minis for $100-$150 off MSRP for a limited time. B&H Photo has the new 2018 4-Core and 6-Core Mac minis on sale for up to $150 off... Read more

Jobs Board

*Apple* Mobile Master - Best Buy (United Sta...
**732324BR** **Job Title:** Apple Mobile Master **Job Category:** Store Associates **Location Number:** 000013-Fargo-Store **Job Description:** **What does a Best Read more
*Apple* Mobility Pro - Best Buy (United Stat...
**723452BR** **Job Title:** Apple Mobility Pro **Job Category:** Store Associates **Location Number:** 001194-Greeley-Store **Job Description:** At Best Buy, our Read more
Best Buy *Apple* Computing Master - Best Bu...
**731319BR** **Job Title:** Best Buy Apple Computing Master **Job Category:** Store Associates **Location Number:** 000303-Arlington Heights-Store **Job Read more
Best Buy *Apple* Computing Master - Best Bu...
**733266BR** **Job Title:** Best Buy Apple Computing Master **Job Category:** Sales **Location Number:** 000144-Union City-Store **Job Description:** **What does a Read more
Geek Squad *Apple* Master Consultation Agen...
**732907BR** **Job Title:** Geek Squad Apple Master Consultation Agent **Job Category:** Services/Installation/Repair **Location Number:** 000360-Williston-Store Read more
All contents are Copyright 1984-2011 by Xplain Corporation. All rights reserved. Theme designed by Icreon.