A system for starting, stopping, and managing automated processes.

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53
votes
13answers
55k views

runaway distnoted process

Sometimes I see a distnoted process suddenly spin up and chew up 100% CPU (on one core) and a ton of memory, often in the neighborhood of 1.5G or so. This happens a few times a day, starting a month ...
48
votes
5answers
43k views

Why am I getting a “dubious ownership of file” error when Launch Agent runs my .plist file?

I have a Launch Agent configured to run a .plist file for example: /Library/LaunchAgent/foo.plist. Inside this .plist, it is set to run during LoginWindow and Aqua. When I attempt to launch my ...
19
votes
1answer
4k views

Using tmux and pbpaste, pbcopy, and launchctl

I have discovered that tmux breaks pbpaste, pbcopy and launchctl. Is there a good way to make it play nice with these tools?
16
votes
3answers
24k views

In OSX Yosemite, why can I set many environment variables for GUI apps, but cannot set the specific variable PATH

After I had sorted out OSX' PATH issues up to the Mavericks release, the problems come back in Yosemite!!! So I want to mimic the old launch.conf feature in the new Mac OSX 10.10 Yosemite release, ...
15
votes
4answers
4k views

Can anyone recommend a good tutorial for writing (from scratch) a cron-style launchd job?

I've got a fairly simple job that I'd like to run every hour. I could do it using cron, but I thought I'd use this to learn about launchd, since I hear good things about it. I've got the man ...
14
votes
3answers
2k views

Why is cron being deprecated?

I just found out that cron has been deprecated in Mac OS X. Why is this, and will it eventually be completely removed from future releases?
14
votes
1answer
2k views

Set launchd log level

How can I set the log level of launchd in MacOS Yosemite? I've tried launchctl log level debug but it doesn't work.
13
votes
4answers
19k views

What's wrong with my launchctl config?

I'm trying to auto-run SickBeard on login python /Applications/Sick-Beard/Sickbeard.py <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE plist PUBLIC -//Apple Computer//DTD PLIST 1.0//EN ...
12
votes
6answers
4k views

Run bash script at login stored in the home folder?

When I try to load a LaunchAgent plist from launchctl I can't find out how to run a script in the home directory. My code is: <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE plist PUBLIC ...
11
votes
3answers
4k views

ssh-under-cron stops working in OS X 10.7 Lion

Just upgraded from Snow Leopard to Lion, and my cron jobs that use ssh have stopped working. It appears that ssh-agent is no longer functioning as expected. Here's a bowdlerized version of my ...
10
votes
2answers
8k views

Too Many Open Files

Which command / configuration file controls the open file limits on OS X? Is there a different command for OS X 10.5 / 10.6 / 10.7? The options I explore below are ulimit, sysctl, and launchctl ...
9
votes
2answers
2k views

/System/Library/LaunchAgents is locked in El Capitan

I'm trying to achieve this: Make my password protected SSH key expire or timeout after a while In Yosemite, this worked fantastic, in El Capitan, using sudo, the files in /System/Libary/LaunchAgents ...
9
votes
2answers
17k views

Stopping LaunchAgents and Daemons

I work as admin in a college environment. One of the challenges is to stop the services installed by students with CS major. Some time back they got the admin access and installed launch agents and ...
8
votes
2answers
4k views

Automatically delete a folder daily

Is there a way to automatically have a folder deleted every day at 4am? I'm running 10.6.7.
8
votes
3answers
1k views

How do I automatically kill processes that leak memory?

I have problems with processes that leak memory. They cause my hard drive to be filled with swap files in /private/var/vm. I would like leaking processes to be killed at sight by the OS. I’m not ...
7
votes
3answers
2k views

Can launchd run programs more frequently than every 10 seconds?

I have some services like this that I'd like to run almost immediately after files are modified. <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE plist PUBLIC -//Apple Computer//DTD PLIST ...
7
votes
3answers
2k views

How can I find what process is starting apps in the background?

I keep seeing CIJScannerRegister running. I'd like it to never run. Every time it appears I use launchctl to remove its listing and that kills the app. But it reappears later. I know where ...
7
votes
4answers
5k views

Run Script on Logout Without Use of Logout Hook

I've been looking into running a few cleanup commands when a user logs out, however the old logout hook feature, although still functioning, has been deprecated for some time now so may not be with us ...
7
votes
2answers
748 views

Is loading your desktop before login safe?

I came across an article explaining how to load your desktop before you login. Does anyone know if this works in Lion? Is there any reason I should avoid attempting it? Load your desktop before ...
6
votes
1answer
2k views

What is the difference between a `service-name` and a `service-target`?

Consider the following commands # launchctl stop Usage: launchctl stop <service-name> # launchctl stop com.apple.SomeService # launchctl disable com.apple.SomeService Usage: launchctl disable ...
6
votes
2answers
2k views

What is the difference among the various event schedulers for OS X / Darwin?

I'm confused about the differences among the three (that I know of) tools for scheduling running of code on OS X / Darwin: cron launchcd pmset I understand that cron is largely deprecated, but it ...
6
votes
3answers
2k views

Run a shell script when switching to battery power

User Story: As a MacBookPro user I want to run a script that ejects my USB drive when I disconnect the power source so that I don't have to remember to eject it before grabbing my laptop and hurrying ...
6
votes
1answer
16k views

Yosemite com.apple.xpc.launchd error every 10 seconds

Every 10 seconds i get this error in my console: 20/10/14 19:35:56,840 com.apple.xpc.launchd[1]: (com.viber.osx[9850]) Could not find and/or execute program specified by service: 45: Operation not ...
6
votes
1answer
7k views

How to show all running launchctl daemons/agents?

When I run: sudo launchctl bslist ... it shows all the running /System daemons, but I have some running from /Library/LaunchDaemons and it is not showing those. How can I show them all?
6
votes
1answer
1k views

How can I run a job once a day with launchd, regardless of when the computer is on?

I would like to run a shell script daily, but not necessarily at a specific time. The computer the script runs on is switched on at irregular times, and no assumptions can be made when that will be. ...
6
votes
2answers
8k views

How to find out what launch agent or daemon is starting a process

After installing Autodesk Smoke, I have two httpd processes running all the time, and I'd like to stop them. When I use sudo killall httpd, they stop and are restarted right away. Activity Monitor ...
6
votes
1answer
747 views

/etc/launchd.conf setenv value containing whitespace

In my /etc/launchd.conf file, I added these lines in an effort to figure out exactly how to create globally scoped environment variables whose values contain whitespace. setenv foo1 123456 setenv ...
5
votes
3answers
2k views

Automatically relaunch a closed application

I have an application that opens when I login. Is there a way to relaunch it automatically if it crashes or if I close it inadvertently? (the application in question is Transmission if there is any ...
5
votes
1answer
9k views

Running a command whenever Mac boots up with launchctl/plist

I need to run nohup nice synergys -f --config ~/bin/conf/synergy.conf & command whenever the computer boots up. As is written in this post, I came up with the following plist code. <?xml ...
5
votes
1answer
1k views

Start Apache httpd on boot

Since upgrading to Yosemite, Apache httpd is no longer started at boot time. I've tried: sudo launchctl load org.apache.httpd.plist but I'm getting a service is disabled error. I've modified the ...
5
votes
3answers
11k views

What does lsboxd process do on os x?

My firewall asked me for a connection from lsboxd (module com.apple.ls.boxd, ) to one another computer in my network to the port tcp 548. What does it do? I found that it is a part of sandbox ...
5
votes
1answer
2k views

Stopping a macports installed mysql daemon

I'm trying to reset my root password on a macports installed MySQL on OS X. But none of the ways to do this that I can find works, for various reasons. One reason common to all is that I can't stop ...
5
votes
1answer
2k views

Why is my launchd job running at boot even with RunAtLoad key set to false?

I have a launchd plist file that I use to run a program at a selected time every day. It works, but it also runs the program whenever I boot the computer or unload and reload the job using the GUI ...
5
votes
1answer
2k views

Launchctl difference between load and start, unload and stop

I was reading through the launchctl man page and have a few questions about its functioning: What is the difference between load and start, unload and stop? Where do I find the job label for a ...
5
votes
1answer
354 views

What is the relationship between `launchctl limit` and `ulimit`?

There is not any ulimit configuration in system startup files/ shell startup scripts. ulimit -a shows: -u: processes 1064 -n: file descriptors 256 launchctl ...
5
votes
2answers
2k views

How to mount a RAM disk on startup?

I'm trying to mount a RAM disk on startup with this: /Users/Aram/Development/Tools/ramdisk.sh diskutil erasevolume HFS+ "RamDisk" `hdiutil attach -nomount ram://800000` com.aram.ramdisk.plist ...
4
votes
2answers
2k views

How can I stop com.apple.launched from attempting to start a service we uninstalled?

My office used to use JungleDisk Workgroup service to exchange large files. We've moved on to a new solution and I uninstalled the client according to their instructions, but I noticed today in the ...
4
votes
2answers
6k views

Getting launchd to read program arguments correctly

I have a launchd script where the command I'm trying to run is erroring (apparently that's not a word, it is now), complaining of improper usage. The specific error I'm getting is the command's usage ...
4
votes
2answers
4k views

Why won't kern.maxfiles setting in /etc/sysctl.conf stick?

I've been getting various "too many files open in system"-type errors on Yosemite (10.10.1). Searching around suggests setting kern.maxfiles and kern.maxfilesperprocess in /etc/sysctl.conf. I've ...
4
votes
2answers
1k views

How do I stop GitHub Conduit?

How do I stop GitHub Conduit and keep GitHub.app from reinstalling the job in launchd?
4
votes
4answers
6k views

Mac won't boot: Way to mount drive and delete one file?

My macbook is currently a brick. I added a /etc/launchctl.conf file that must be malformed. The OS now crashes even when attempting to start in safe mode: "launchd System bootstrapper has crashed: ...
4
votes
2answers
705 views

Run a launchd job after Time Machine backup

Quite simply, I have a process that's triggered by launchd but currently runs once an hour, however really what I would like it to do is run once a Time Machine backup has completed. Initially I ...
4
votes
1answer
4k views

launchtl: any way to disable a daemon after removing the plist file?

I was trying to permanently disable a 3rd party daemon, so I deleted its plist file from /Library/LaunchDaemons-- and then I realized that I hadn't done a launchctl unload on it first; trying after ...
4
votes
2answers
414 views

Make locator.updatedb run daily on Snow Leopard w/o hacking /System/Library?

On Snow Leopard, the locate database is updated once a week by a launchd job, /System/Library/LaunchDaemons/com.apple.locate.plist. I'd like to make the updater run daily, but AFAIK it's considered ...
4
votes
2answers
5k views

How to properly increase ulimit -n on Lion?

I'm trying to download the X-Plane 10 Demo through uTorrent, however I get a "too many open files" error all the time. I can do the alternate download (which takes forever and a day), but I wonder how ...
4
votes
1answer
337 views

What is the difference between cron and lauchd?

What is the difference between cron and lauchd? I have always used cron, but I have recently heard that launchd is better. Why? In what ways is cron better? In what ways is launchd better?
4
votes
1answer
3k views

launchd with high disk usage

launchd is producing a lot of I/O activity. In the last day and a half it managed to write 12 GB of data while reading 500MB. I the logs I do not see anything suspicious. Any suggestion at where ...
4
votes
1answer
2k views

How to run multiple commands on reboot using launchctl/plist?

In OS X, you can write a plist file in ~/Library/LaunchAgents/ (or something similar, depending on what permissions/users you like it to be operated on), and load it using launchctl to make it ...
4
votes
3answers
962 views

Can't quit app launched through launchd

As it says in the title, "Can't quit app launched through launchd"—or more precisely, I can quit it, but it then automatically restarts again. Background: I prefer to use BusyCal, not iCal, but ...
4
votes
1answer
1k views

Can I unload com.apple.mrt via launchd or otherwise remedy these errors?

I just realized that the job com.apple.mrt crashes every 10 seconds on my Mac. What exactly is the aim of com.apple.mrt? Apparently it should be a "Malware Removal Tool". Can I remove it from ...