Re: Pass argument to function

[ipcore]

Hi Brandon,

'capture' and its friends 'run' and 'run*' are macros that treat their 
arguments differently from what you would expect from a regular procedure.

Looking at the documentation of '(run COMMAND ...)', you will find that

>  COMMAND is also implicitly quasiquoted so subexpressions may be computed at 
> run-time by unquoting them.

which means that COMMAND is passed to the shell as-is, without being 
evaluated. So the "not found" error is actually returned by the shell, 
since it does not know what 'string-append' is.

In order to evaluate a quasi-quoted expression (or parts of it), you 
must unquote it (or the parts in question).
This should work:

(capture ,(string-append "docker inspect " str)))

Hope that helps.

Best wishes,
-utz