06-27-2019
Quote:
Originally Posted by
bakunin
As an AIX SysAdmin for the last ~30 years i can tell you: nothing is even "close to AIX". Sorry to say that but to learn AIX you need AIX, nothing else. The best (and cheapest) you may try is to buy an old and out of support IBM machine where AIX is already installed and play with it. For instance, there is a . The system is approx. 15 years old, but the basics of AIX (nota bene: the basics) haven't changed that much since then. Modern AIX systems (aka "p-Series") are targeted at the high-end segment in terms of robustness and reliability but they come at a price. To get a modern and supported hardware running AIX with all the licenses you need (and a HMC, ...) you face investments of $$ 50k upwards - not something you want to buy for dabbling around.
Fortunately, the way you come across you will have to learn a lot of general UNIX knowledge first anyways and for this purpose most modern systems are pretty equal. Here are a few things to learn which you can do on absolutely any system, regardless of it being a UNIX (HP-UX, SunOS/Solaris,AIX), FreeBSD, OpenBSD or any of the Linux-distributions afloat. (I suggest to stay away from OpenBSD, not because the system wouldn't serve the purpose but the people doing it are what i would call "open-source Ayatollahs" and like all fanatics enjoy killing the innocent.)
- how to read man pages
- file system mechanics, mounting/unmounting
- regular expressions and their different types (globs, BREs, EREs)
- filter tools: grep, sed, awk, join, paste, ...
- shell basics - notice that AIX uses Korn Shell (IMHO the better shell anyway), not bash, but it is good to be proficient in both
- basics of scripting
- UNIX process model, "background" and "foreground" jobs, multitasking, ....
I hope this helps.
bakunin
This is perfect and exactly the advice I was looking for - thanks for the tips and help Bakunin
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LEARN ABOUT DEBIAN
starting
starting(7) Miscellaneous Information Manual starting(7)
NAME
starting - event signalling that a job is starting
SYNOPSIS
starting JOB=JOB INSTANCE=INSTANCE [ENV]...
DESCRIPTION
The starting event is generated by the Upstart init(8) daemon when a new instance of a job begins starting. The JOB environment variable
contains the job name, and the INSTANCE environment variable contains the instance name which will be empty for single-instance jobs.
init(8) will wait for all services started by this event to be running, all tasks started by this event to have finished and all jobs
stopped by this event to be stopped before allowing the job to continue starting.
This allows jobs to effectively insert themselves as dependencies of other jobs. The event is typically combined with the stopped(7) event
by services.
Job configuration files may use the export stanza to export environment variables from their own environment into the starting event. See
init(5) for more details.
EXAMPLE
A service that wishes to be running whenever another service would be running, started before and stopped after it, might use:
start on starting apache
stop on stopped apache
A task that must be run before another task or service is started might use:
start on starting postgresql
SEE ALSO
started(7) stopping(7) stopped(7) init(5)
Upstart 2009-07-09 starting(7)