Re: bash/sh program interpreter problems...

[Reini Urban <rurban at x-ray dot at>]

Robert Schmidt schrieb:
> I have the following two programs in /usr/local/bin:
>
> --- test.btm
> #!/usr/local/bin/testint.sh
> echo hello from test.btm

naming a shell script .btm is not a good idea, since .btm files are 
usually 4NT batch files.
same for .h files.
windows has some internal registry key which extensions are executable.

> --- testint.sh
> #!/bin/sh
> echo hello from test interpreter.  the file is "$1"
>
> --- test.h
> #!/bin/bash
> test.btm

chmod +x /usr/local/bin/test.btm
chmod +x /usr/local/bin/test.h

does the explicit path help?

--- test.h
#!/bin/bash
/usr/local/bin/test.btm

One should not assume that test.btm is executable.
BTW: I have the same problems, with some php or java wrappers. The first 
call gives this error message "bad interpreter", the seconds works fine 
then.


> Then I do this:
>
> ~ $ echo $PATH
> /usr/bin:/usr/local/bin:/cygdrive/c/WINDOWS/system32:/cygdrive/c/WINDOWS:...[snip] 
>
> ~ $ test.btm
> : bad interpreter: No such file or directoryn/testint.sh
> ~ $
>
> First of all, the output is messed up by an ASCII 13 character.  Putting 
> an extra space after "testint.sh" in test.btm fixes this.  I don't 
> understand why this problem doesn't occur for /bin/sh or /bin/bash 
> interpreter specifications.
>
> ~ $ test.btm
> bash: /usr/local/bin/test.btm: /usr/local/bin/testint.sh: bad 
> interpreter: No such file or directory
>
> Second, I can't figure out why testint.sh is not found.  Further testing 
> shows that the result is highly dependent on the current working 
> directory, and almost inexplicably random.  test.sh seems to fail much 
> more often then simply test.btm.
> The scripts were initially DOS ASCII.  Converting them with dos2unix 
> only takes away the first problem above.  All mounts are binmode.
> Here are a few more runs:
>
> ~ $ cd /usr/local/bin
> /usr/local/bin $ test.btm
> hello from test interpreter. the file is /usr/local/bin/test.btm
> /usr/local/bin $ test.sh
> /usr/local/bin/test.sh: /usr/local/bin/test.btm: 
> /usr/local/bin/testint.sh: bad interpreter: No such
>  file or directory
> /usr/local/bin $ test.btm
--
Reini Urban
http://xarch.tu-graz.ac.at/home/rurban/

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