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Re: How to supply a string with space in it as parameter to a function?


From: Peng Yu
Subject: Re: How to supply a string with space in it as parameter to a function?
Date: Wed, 23 Jun 2010 19:53:32 -0500

On Wed, Jun 23, 2010 at 5:43 PM, Chris F.A. Johnson
<address@hidden> wrote:
> On Wed, 23 Jun 2010, Peng Yu wrote:
>
>> Hi,
>>
>> According to man bash, I thought that $@ instead of $* can help me
>> pass a string with space as a parameter. But it is not. Would you
>> please show me how to print 'b c' as a single argument in the
>> following code?
>
>   Always quote variable references unless you have a good reason not
>   to.
>
>> #!/usr/bin/env bash
>>
>> function f {
>> #for i in $*;
>> for i in $@;
>> do
>>   echo $i
>> done
>> }
>
> for i in "$@"  ## note the quotes
> do
>  echo "$i"  ## better is: printf "%s\n" "$i"
> done

Why printf is better than echo? Is this because printf is more robust than echo?

-- 
Regards,
Peng



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