Notify users when their disk space is running low

--I'm sure there are several ways to do what you want; here's one that works on an individual computer. If necessary, suitable changes should be possible for server situations, but someone else will have to jump in on that. Copy this to Script Editor, make suitable modifications, then save it as an application; be certain "Startup Screen" isn't checked. Either have the user start it when the computer is started up, or place it in the log-in items (System Peferences) so that happens automatically.

set message_ to "Stephen! Don't trouble the technician, delete some files!" -- modify to suit

set MinAllowFS to 20 -- set this to the available disk space you want to trigger one or more of the responses. MB doesn't have to be specified if everything is in MB (max. possible space, etc.), otherwise some adjustments will have to made to the script. To TEST the script, set the number above what you know the available space could be.

repeat --(However often you want to check free space)
delay 5 --that's 5 seconds; if you think every 10 minutes is often enough to check, make that 600; or make it 0 and the script will repeat essentially in the time it takes to run, which is about 2.5 seconds on my machine

try
set bootDiskInfo to do shell script "diskutil list | grep 'stephen'" -- this gets information for all disks, and then finds the line pertaining to disk 'stephen' (change as necessary)

set bootDiskID to last word of bootDiskInfo -- that last word is the identifier for the disk you're after

set FSinfo to do shell script "diskutil info " & bootDiskID & " | grep 'Free Space'" -- similar to the above command, getting the free space for the boot disk.

set ActFS to word 3 of FSinfo -- word 3 is the numerical value of the free space, irrespective of the multiplier (KB, MB, GB etc.); as stated previously, there will have to changes to the script if the spaces range amongst multipliers.

--Pick one or more of the following responses by removing the comment ("--")

if ActFS < MinAllowFS then beep 3

--if ActFS < MinAllowFS then display dialog message_

--if ActFS < MinAllowFS then say "[[rate 180]]" & message_--[here's a link on using speech: http://www.blankreb.com/studioarticles.php?ID=3
end try
end repeat

Don't know what those strike-throughs are in my post of a couple minutes ago. Those lines were commented ("--")

--PLEASE USE THIS MODIFIED VERSION OF THE SCRIPT POSTED EARLIER. IT INCLUDES AN "IDLE HANDLER" WHICH ALLOWS THE FINAL APPLICATION TO BE QUIT NORMALLY AND PREVENTS ISSUES AT SHUTDOWN OF THE COMPUTER.

--MOST OF THE COMMENTS IN THE ORIGINAL SUBMISSION STILL APPLY. THE REPEAT RATE IS NOW SET NEAR THE END OF THE SCRIPT, AS SHOWN


--AGAIN, SAVE THE SCRIPT AS AN APPLICATION, BUT SELECT "STAY OPEN" (ONLY).


-- ****BEGIN SCRIPT
idle
on idle
set message_ to "Stephen! Don't trouble the technician, delete some files!"
set MinAllowFS to 20
try
set bootDiskInfo to do shell script "diskutil list | grep 'stephen'"
set bootDiskID to last word of bootDiskInfo
set FSinfo to do shell script "diskutil info " & bootDiskID & " | grep 'Free Space'"
set ActFS to word 3 of FSinfo

--Pick one or more of the following responses by removing the comment ("")

--if ActFS < MinAllowFS then beep 3

--if ActFS < MinAllowFS then display dialog message_

if ActFS < MinAllowFS then say "[[rate 180]]" & message_
end try
return 10 --<< Here's where you set the repeat rate in seconds
end idle
-- ****END SCRIPT

There still seem to be some formatting issues with posts. In my post of a few minutes ago:

1) ... by removing the comment ("") should be ... by removing the comment ("--")

2) For the spoken message option, the rate should be expressed as [[rate 180]] surrounded by double quotes, but it shows up in the post with single brackets. If there is further confusion on this, go to the link I cited in my first post.

(Hope this correction posts correctly)

(Hope this correction posts correctly) --IT DIDN'T!

rate 180 should have
[[
before it and
]]
after it

AND ... that whole expression, double brackets and all, should be surrounded by double quotes.

Hello,

I try this script but it doesn't works, I have several disks connected to my Mac and It never gets the right "BootDiskInfo".

Do yu have a better wy to get free space ?

thanks

HDR