Also, on macOS, I added this to launchd so it would sync the unix time with the Arduino UNO on startup:
Unfortunately, because this python script is not a "proper" macOS launch daemon, it will not "keep alive", so I still use cron for that. Maybe I'll find a way to fix this later. Maybe I need to move it to LaunchScripts versus LaunchDaemons? Anyway.... think I'll "call it good" on the unix time sync experiment for now... and as we all know....
I am assigned a programming work.It is my first time to use unix.
The task is writing a shell script to interrogate the university Unix operating system to determine the number of "Runnable" processes at any given time.Then append the result,along with a time-stamp,on a log file. Also there are... (1 Reply)
I have a list of interfaces and time the interface was last active. I can't figure out how to convert the time in the second column,
Fa1/14 0
Se0/0/0 0
Fa1/11 0
Fa1/9 0
Fa1/0 0
Se0/0/1 1240401408
Gi1/0 0
Fa0/0 1240401408
Fa1/3 0
Fa1/8 0
Fa1/15 0
Fa1/13 0
Fa1/10 0
Fa1/1 0
Fa1/12... (7 Replies)
Here is two time I have:
Jul 12 16:02:01
Jul 13 01:02:01
and how can I do a simple match to get difference between two time which is 09:00:00
Thanks in advance. (3 Replies)
I'd like to convert a date string in the form of sun aug 19 09:03:10 EDT 2012, to unixtime timestamp using awk.
I tried
This is how each line of the file looks like, different date and time in this format
Sun Aug 19 08:33:45 EDT 2012, user1(108.6.217.236) all: test on the 17th
... (2 Replies)
I needed some help in adding a duration (in seconds) to a start time (in hhmmss format) and a start date (in mmddyy format) in order to get an end date and end time. The concept of a leap year is also to be considered while incrementing the day. The code/ function that I have formed so far is as... (3 Replies)
Hi guys thanks for the help for my previous posts.Now i have a requirement that i download a XMl file which has UTC time stamp.I need to convert UTC time into Unix server timezone.
For ex if the time zone of unix server is CDT then i need to convert into CDT.whatever may be the system time... (5 Replies)
In my further exploration of Arduino, today I decided to install the arduino-cli on my mac today.
https://github.com/arduino/arduino-cli
I followed the instructions for macOS but when I got to this part:
arduino-cli board list
I got the dreaded "Unknown" Fully Qualified Board Name... (1 Reply)
Discussion started by: Neo
1 Replies
LEARN ABOUT MOJAVE
launchd
launchd(8) BSD System Manager's Manual launchd(8)NAME
launchd -- System wide and per-user daemon/agent manager
DESCRIPTION
launchd manages processes, both for the system as a whole and for individual users.
The primary and preferred interface to launchd is via the launchctl(1) tool which (among other options) allows the user or administrator to
load and unload jobs. Where possible, it is preferable for jobs to launch on demand based on criteria specified in their respective configu-
ration files.
launchd also manages XPC services that are bundled within applications and frameworks on the system.
During boot launchd is invoked by the kernel to run as the first process on the system and to further bootstrap the rest of the system.
You cannot invoke launchd directly.
NOTES
On Darwin operating systems, the canonical way to launch a daemon is through launchd as opposed to traditional POSIX and POSIX-like mecha-
nisms or mechanisms provided in earlier versions of OS X. These alternate methods should be considered deprecated and not suitable for new
projects.
In the launchd lexicon, a daemon is, by definition, a system-wide service of which there is one instance for all clients. An agent is a ser-
vice that runs on a per-user basis. Daemons should not attempt to display UI or interact directly with a user's login session. Any and all
work that involves interacting with a user should be done through agents.
XPC services which are marked with a ServiceType of System are functionally equivalent to daemons and run in the same environment, sharing
the same Mach bootstrap namespace. XPC services which are marked with a ServiceType of User are equivalent to agents with the LimitLoadToSes-
sionType key specifying the Background session and run in the same environment, sharing the same Mach bootstrap namespace. See
launchd.plist(5) for more information about user sessions.
On Darwin platforms, a user environment includes a specific Mach bootstrap subset, audit session and other characteristics not recognized by
POSIX. Therefore, making the appropriate setuid(2) and setgid(2) system calls is not sufficient to completely assume the identity for a
given user. Running a service as a launchd agent or a per-user XPC service is the only way to run a process with a complete identity of that
user.
FILES
~/Library/LaunchAgents Per-user agents provided by the user.
/Library/LaunchAgents Per-user agents provided by the administrator.
/Library/LaunchDaemons System-wide daemons provided by the administrator.
/System/Library/LaunchAgents Per-user agents provided by Apple.
/System/Library/LaunchDaemons System-wide daemons provided by Apple.
SEE ALSO launchctl(1), launchd.plist(5),
DEVELOPER DOCUMENTATION
The Daemons and Services Programming Guide can be found at the following URL:
https://developer.apple.com/library/content/documentation/MacOSX/Conceptual/BPSystemStartup/Chapters/Introduction.html
Darwin 25 November, 2013 Darwin