From: Lloyd Zusman <ljz@...>
Date: 2007-01-28T04:26:08+09:00
Subject: Re: script with -e command line option???

Suresh Unadrad <sunadrad@yahoo.com> writes:

> Robert Klemme wrote:
>>This looks like "ruby" was a shell script that does not properly quote
>>arguments
>
> Rob Biedenharn wrote:
>> I'd start to suspect that you have "ruby"
>> defined as an alias or something to make the args be evaluated twice.
>
> Turns out that this was indeed the problem.  When I started using the 
> ruby fltk extensions, I found that I had to replace /usr/bin/ruby with 
> the following script:
>
> #!/bin/bash
>
> export LD_ASSUME_KERNEL=2.3.98
> exec /usr/bin/ruby1.8 $*
>
>
> so that's why the arguments were being evaluated twice.
>
> thanks everyone for your help!

I would recommend that you do this in your script:

  #!/bin/bash

  export LD_ASSUME_KERNEL=2.3.98
  exec /usr/bin/ruby1.8 "$@"

The "$@" construct will help to maintain the quoting of the arguments
which are passed in.

For example:

  script1
  -------
  #!/bin/bash
  for arg in $*
  do
    echo arg=$arg
  done

  script2
  -------
  #!/bin/bash
  for arg in "$@"
  do
    echo arg=$arg
  done

  % chmod +x script1 script2
  % ./script1 "this is the first arg" "this is the second arg"
  arg=this
  arg=is
  arg=the
  arg=first
  arg=arg
  arg=this
  arg=is
  arg=the
  arg=second
  arg=arg
  % ./script2 "this is the first arg" "this is the second arg"
  arg=this is the first arg
  arg=this is the second arg


-- 
 Lloyd Zusman
 ljz@asfast.com
 God bless you.