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Re: How to supply a string with space in it as parameter to a function?
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From: |
Eric Blake |
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Subject: |
Re: How to supply a string with space in it as parameter to a function? |
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Date: |
Wed, 23 Jun 2010 19:50:05 -0600 |
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On 06/23/2010 07:01 PM, Andres P wrote:
> On Wed, Jun 23, 2010 at 8:23 PM, Peng Yu <pengyu.ut@gmail.com> wrote:
>> Why printf is better than echo? Is this because printf is more robust than
>> echo?
>
> Because if a string that is to be printed happens to be an echo flag, such
> as -n or -e, there's no straight forward way of escaping it such as
> with printf %s.
And because if a string to be printed contains a backslash, behavior
differs wildly between shells on whether echo prints the backslash
literally or treats it as an escape, whereas with printf the behavior is
consistent.
And because POSIX says so.
--
Eric Blake eblake@redhat.com +1-801-349-2682
Libvirt virtualization library http://libvirt.org
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