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

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63
votes
14answers
61k 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
44k 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 ...
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 ...
10
votes
2answers
19k 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 ...
4
votes
2answers
6k 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 ...
1
vote
1answer
6k views

Disable Screen sharing via the command line in mountain lion

I want to be able to enable and disable screen sharing from the command line rather than through System Preferences. This is on 10.8.3 To enable screen sharing, I find I only need to change a ...
3
votes
1answer
518 views

In Mountain Lion why do remote shells via ssh do NOT inherit the environment of the launchd parent process?

When logging in to my Mountain Lion Mac remotely via ssh I do not get the same PATH variable as when I open a shell locally: The local shell inherits its environment as expected from launchd and ...
1
vote
1answer
3k views

Setting a static route every boot with launchd / plist is failing

I hope to use launchd to set a static route on a server at boot time since I haven't figured a better way to configure this sort of networking on a server. My problem is that the command seems to be ...
1
vote
1answer
2k views

prevent launchctl from starting a anonymous process

I have installed dnsmasq and now I want to be able to start it with launchctl. The problem is that every time I start the app launchctl starts an anonyous process instead of using the specified label. ...
10
votes
2answers
9k 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 ...
12
votes
6answers
5k 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 ...
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 ...
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.
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.
7
votes
4answers
6k 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 ...
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 ...
4
votes
1answer
495 views

launchd StartCalendarInterval not working reliably

I have several tasks that I run from launchd using StartCalendar interval. Under Yosemite these do not necessarily run. (Under Mavericks and earlier they did run) How do I see what launchd is doing ...
1
vote
1answer
3k views

Defining environment variables with launchd/launchctl

There are different solutions regarding the definition of environment variables that are stored in the launchd process, namely over at StackOverflow and Superuser. How do these solutions differ?
1
vote
2answers
972 views

Automatically backup JailBreak iPhone DCIM photo directory

Hi I heard that you can write cron job into plist and put it to JB iPhone /Library/LaunchDaemons folder in plist format I would like to backup the photo folder every 300 seconds, so I put a ...
1
vote
1answer
1k views

How to automate execution locate.updatedb by using a bash script

I am looking for a bash set of commands that will enable me to schedule the execution of /usr/libexec/locate.updatedb once every day. Please respond only with a set of command line commands, because ...
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 ...
0
votes
1answer
743 views

Making items added to paths via paths.d show up everywhere under Mavericks

I'd like to set the path under OS X Mavericks so that the setting shows up everywhere (e.g., in .apps and in Darwin shells). There's plenty of discussion out there about how to set environment ...
8
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 ...
6
votes
1answer
18k 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 ...
4
votes
0answers
32 views

How to disable Adobe Core Sync app on OS X from being launched automatically?

I have noticed a lot of Adobe processes are running in the background at start up on an OS X 10.11.4 (15E65) machine with Adobe Creative Cloud (CC) installed. To get rid of this, I removed everything ...
3
votes
2answers
398 views

Run action when device is detached

I'm using a launchd agent to run a shell script whenever I connect my thunderbolt dock. I've been able to use IOKit notifications to detect when the dock is being attached, but I also want to run a ...
3
votes
2answers
1k views

How can I write to Notification Center from a launchd command?

I've got a plist set to run at a set interval, and have put it in /Library/LaunchDaemons like so: /Library/LaunchDaemons $ ll macports_update_notifier.plist lrwxr-xr-x 1 root wheel 55B 5 Sep ...
2
votes
2answers
3k views

Is there a way to load a LaunchAgent as another user?

From a script run as root I copy a LaunchAgent .plist to /Users/xyz/Library/LaunchAgents. If I load that via launchctl logged in as user xyz it works without problems. If I try to load it from the ...
1
vote
1answer
407 views

double password entry to access account

I have the Require password 4 hours after sleep ... option in Security and Privacy System Preferences set and am running a script with launchd to suspend my session at a certain time of day (see this ...
1
vote
1answer
2k views

Automatically Load LaunchDaemon?

I wrote a little script to automatically update my Network Location based on a couple of conditions, and have coupled that with a launchd plist to have it run every couple of minutes. However, I've ...
5
votes
1answer
395 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 ...
3
votes
1answer
411 views

Uninstalling Genieo broke my system

Update below, the rest is more or less background information. After discovering a Genieo install, I vaguely recalled it being, well, not trustworthy. After a quick search I knew I wanted to ...
3
votes
1answer
1k views

Can't connect to rpcbind on localhost

Since upgrading to OS X 10.9 Mavericks, I can't connect to the rpcbind daemon anymore. launchctl tells me that rpcbind is loaded but not running: $ sudo launchctl list | grep rpcbind - 0 ...
3
votes
2answers
168 views

launchd: ask user before performing tasks

Is there a way to get a user-defined launchd task (i.e. like the one in this question) to get user confirmation before executing the task? A popup like the one for scheduled sleep (with yes/no and a ...
2
votes
4answers
423 views

How to stop an app from launching on Login?

I have created an app, that sets itself to launch at Login using SMLoginItemSetEnabled. Here is the code it uses. My question is, how can I manually remove this app from launching at login? The app ...
2
votes
2answers
1k views

Run plist command every 5 seconds

I have the following plist file in my User/Library/LaunchAgents folder. It presses the "g" key every 60 seconds. My question is, how can I change this to press the "g" key every 5 seconds? ...
0
votes
1answer
107 views

How to create automatic launchd job that sets the Ruby version to use

I’d like to run a ruby script automatically once or twice a day on my MacBook running OS X Yosemite. Problem is that I currently have three versions of Ruby on my system including 1.8.7 and 2.2.1, ...
0
votes
1answer
897 views

Mail does not work in scripts launched with launchd

I'm using this setup to be able to send mail from Terminal: http://www.anujgakhar.com/2011/12/09/using-macosx-lion-command-line-mail-with-gmail-as-smtp/ It works great, and I can use it in scripts. ...