Run shell command but not wait for result

[kaveh1000]

I am using the following command:

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put shell(Script_Shell) into temp

It seems LiveCode waits until the result is in temp, then executes the next command. Actually I am not interested in the result. I want the shell script to be sent, then continue with the next command.

Can I have some advice on this please.

[Thierry]

I am using the following command:

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put shell(Script_Shell) into temp

I want the shell script to be sent, then continue with the next command.

Can I have some advice on this please.

Mmm, is this what you want?

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get shell( "shellCommand1;shellCommand2;shellCommand3")

EDIT: Oops, missed that you want asynchronous calls.
So, I change my answer

But this is not perfect for every use cases.

HTH,

Thierry

[ghettocottage]

I seem to remember having a similar issue, and solved it by running an external bash script rather than running the commands directly from within livecode.

[Klaus]

I seem to remember having a similar issue, and solved it by running an external bash script rather than running the commands directly from within livecode.

Yes, direct SHELL calls from within LC are always blocking!

[kaveh1000]

I seem to remember having a similar issue, and solved it by running an external bash script rather than running the commands directly from within livecode.

Yes, direct SHELL calls from within LC are always blocking!

So LC will always wait for the result of the Shell command before continuing with next?

[Thierry]

Yes, direct SHELL calls from within LC are always blocking!

So LC will always wait for the result of the Shell command before continuing with next?

Yes, that the way it works.

Thierry

[FourthWorld]

In some cases you can use "open process" instead. The "for neither" option will wait for neither read nor write, returning to the handler once the process is launched.

[wsamples]

You can get non-blocking shell commands in Livecode although this may be platform dependent. This isn't my idea, it comes from howsoft.com, http://www.howsoft.com/runrev/extensions/ "Shell without wait".

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   put "YOUR-SHELL-COMMAND" into tShellCommand
   put "exec " & tShellCommand & " > /dev/null 2>/dev/null &" into tNoWaitShellCommand
   get shell(tNoWaitShellCommand)

[Thierry]

You can get non-blocking shell commands in Livecode although this may be platform dependent. This isn't my idea, it comes from howsoft.com, http://www.howsoft.com/runrev/extensions/ "Shell without wait".

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   put "YOUR-SHELL-COMMAND" into tShellCommand
   put "exec " & tShellCommand & " > /dev/null 2>/dev/null &" into tNoWaitShellCommand
   get shell(tNoWaitShellCommand)

I've been doing this a lot in the past and it can get tricky
depending on the scripts you are running...

Anyway, if you want to go that way, might be good
to check for nohup, screen and jobs commands.

But as I said, depends of your goal; hard to generalize.

Good luck,

Thierry

[kaveh1000]

Thanks a lot all. We'll do some testing and report back if a good solution is found...