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computers / comp.sys.mac.system / Re: script under launchd

SubjectAuthor
* script under launchdDr Eberhard Lisse
`* Re: script under launchdLewis
 `* Re: script under launchdDr Eberhard Lisse
  `* Re: script under launchdLewis
   `- Re: script under launchdDr Eberhard Lisse

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script under launchd

<j6f4rcFu3g7U2@mid.individual.net>

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From: nos...@lisse.NA (Dr Eberhard Lisse)
Newsgroups: comp.sys.mac.system
Subject: script under launchd
Date: Tue, 8 Feb 2022 14:09:15 +0200
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 by: Dr Eberhard Lisse - Tue, 8 Feb 2022 12:09 UTC

Hi,

how can a (bash) script find out whether it runs under launchd?

el
--
To email me replace 'nospam' with 'el'

Re: script under launchd

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From: g.kr...@kreme.dont-email.me (Lewis)
Newsgroups: comp.sys.mac.system
Subject: Re: script under launchd
Date: Tue, 8 Feb 2022 18:09:37 -0000 (UTC)
Organization: Miskatonic U
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 by: Lewis - Tue, 8 Feb 2022 18:09 UTC

In message <j6f4rcFu3g7U2@mid.individual.net> Dr Eberhard Lisse <nospam@lisse.NA> wrote:
> Hi,

> how can a (bash) script find out whether it runs under launchd?

the usual way to see how a script was launched is to check the EUID, but
I am not sure that will tell you with launchd

For example, to check if the script was launched by root:

if [[ $EUID -ne 0 ]]; then
echo "root user required"
exit 1
fi

--
Y'all need to get together and woman up.
I think you mean man up.
No, y'all have been manning up for a while, Look where that's
got you.

Re: script under launchd

<j6jtpoFri67U1@mid.individual.net>

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From: nos...@lisse.NA (Dr Eberhard Lisse)
Newsgroups: comp.sys.mac.system
Subject: Re: script under launchd
Date: Thu, 10 Feb 2022 09:39:33 +0200
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 by: Dr Eberhard Lisse - Thu, 10 Feb 2022 07:39 UTC

Thank you for answering a question that I did not ask, the answer to
which I knew and was not helpful. Which was unsurprising.

As the script is used by the User (only), $EUID is the same whether
started interactively or by launchd.

However, for those who might be interested, I found that you can easily
put something like

<key>EnvironmentVariables</key>
<dict>
<key>RUNNING_UNDER_LAUNCHD</key>
<string>1</string>
</dict>
</key>

into the plist and then check $RUNNING_UNDER_LAUNCHD.

If yo want to be sure you can set RUNNING_UNDER_LAUNCHD to 0 in .bashrc.

Then of course one can check for $PPID which is 1 if turned loose by
launchd.

And then finally is $XPC_SERVICE_NAME which you (can) set with

<key>Label</key>
<string>na.lisse.whatever.run</string>

in the plist and on an interactive shell is 0.

So, bottom line, RTFM :-)-O

el

On 08/02/2022 20:09, Lewis wrote:
> In message <j6f4rcFu3g7U2@mid.individual.net> Dr Eberhard Lisse
> <nospam@lisse.NA> wrote:
>> Hi,
>
>> how can a (bash) script find out whether it runs under launchd?
>
> the usual way to see how a script was launched is to check the EUID,
> but I am not sure that will tell you with launchd
>
> For example, to check if the script was launched by root:
>
> if [[ $EUID -ne 0 ]]; then
> echo "root user required"
> exit 1
> fi
>

--
To email me replace 'nospam' with 'el'

Re: script under launchd

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From: g.kr...@kreme.dont-email.me (Lewis)
Newsgroups: comp.sys.mac.system
Subject: Re: script under launchd
Date: Thu, 10 Feb 2022 14:47:37 -0000 (UTC)
Organization: Miskatonic U
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 by: Lewis - Thu, 10 Feb 2022 14:47 UTC

In message <j6jtpoFri67U1@mid.individual.net> Dr Eberhard Lisse <nospam@lisse.NA> wrote:
> Thank you for answering a question that I did not ask, the answer to
> which I knew and was not helpful. Which was unsurprising.

I apologize for attempting to help you. It will not ever happen again.

--
I don't believe there's a power in the 'verse can stop Kaylee from
bein' cheerful. Sometimes you just wanna duct-tape her mouth and
dump her in the hold for a month.

Re: script under launchd

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From: nos...@lisse.NA (Dr Eberhard Lisse)
Newsgroups: comp.sys.mac.system
Subject: Re: script under launchd
Date: Fri, 11 Feb 2022 12:35:54 +0200
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 by: Dr Eberhard Lisse - Fri, 11 Feb 2022 10:35 UTC

Never happened before either.

el

On 10/02/2022 16:47, Lewis wrote:
> In message <j6jtpoFri67U1@mid.individual.net> Dr Eberhard Lisse <nospam@lisse.NA> wrote:
>> Thank you for answering a question that I did not ask, the answer to
>> which I knew and was not helpful. Which was unsurprising.
>
> I apologize for attempting to help you. It will not ever happen
> again.
>

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To email me replace 'nospam' with 'el'

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