'system' cannot properly start Linux shell scripts

Am 11.09.2011 18:55, schrieb Andreas Weidner:

I cannot get my EAGLE 5.11.02 (Linux) to properly execute shell scripts

with parameters: The shell script 'test.sh' contains the lines

#!/bin/bash

echo parameter=[$1]

and, when manually executed via

. test.sh abc

correctly outputs the text

parameter=[abc]

 

So far, so good. From EAGLE, using the ULP syntax

system(". test.sh abc");

by some reason only outputs

parameter=[]

 

Is there any logical reason why EAGLE should behave that way? Do I make

wrong assumptions somewhere (I normally do NOT use Linux and therefore

do NOT know too much about it)? I'm currently trying this on

Ubuntu 10.04 LTS - Lucid Lynx.

 

Andreas Weidner

 

Why would you want to source the script from withing the system()?

How about using system("test.sh abc") or system("./test.sh abc")?

I mean, the . (source) is only useful, when you want to put the

parameter into your current environment.

main() { system(". test.sh abc"); } behaves like the behaviour you describe.

--

Christoph

Am 11.09.2011 18:55, schrieb Andreas Weidner:

I cannot get my EAGLE 5.11.02 (Linux) to properly execute shell scripts

with parameters: The shell script 'test.sh' contains the lines

#!/bin/bash

echo parameter=[$1]

and, when manually executed via

. test.sh abc

correctly outputs the text

parameter=[abc]

 

So far, so good. From EAGLE, using the ULP syntax

system(". test.sh abc");

by some reason only outputs

parameter=[]

 

Is there any logical reason why EAGLE should behave that way? Do I make

wrong assumptions somewhere (I normally do NOT use Linux and therefore

do NOT know too much about it)? I'm currently trying this on

Ubuntu 10.04 LTS - Lucid Lynx.

 

Andreas Weidner

 

Why would you want to source the script from withing the system()?

How about using system("test.sh abc") or system("./test.sh abc")?

I mean, the . (source) is only useful, when you want to put the

parameter into your current environment.

main() { system(". test.sh abc"); } behaves like the behaviour you describe.

--

Christoph

Am 13.09.2011 11:08, schrieb Christoph Kukulies:

Why would you want to source the script from withing the system()?

I do not understand your question (I understand the WORDS, but not the

MEANING).

How about using system("test.sh abc") or system("./test.sh abc")?

See below.

I mean, the . (source) is only useful, when you want to put the

parameter into your current environment.

As stated, I do not know Linux well. Therefore, I first test things from

inside the shell, and afterwards try them with EAGLE's 'system' command.

From the shell, typing

   test.sh abc

didn't work at all. Neither did

   ./test.sh abc

(both just produce NOTHING but error messages). Absolutely the ONLY

thing that DID work from inside the shell was

   . test.sh abc

which, unfortunately, doesn't work together with the 'system' command.

Thanks for the tips, though. When I'm feeling extremely well and dare to

boot into the overly confusing Linux the next time, I'll check whether

your two suggestions work. If they DO, things are just getting even MORE

confusing with Linux, because that would not only mean that there are

cases when things work in the shell and NOT from EAGLE, but also the

other way round. VERY strange.

Andreas Weidner