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Re: Yet another quoting question
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From: |
Eric Blake |
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Subject: |
Re: Yet another quoting question |
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Date: |
Fri, 06 May 2011 09:11:28 -0600 |
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User-agent: |
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.17) Gecko/20110428 Fedora/3.1.10-1.fc14 Lightning/1.0b3pre Mnenhy/0.8.3 Thunderbird/3.1.10 |
On 05/06/2011 09:02 AM, Steven W. Orr wrote:
> 4.0.35(1)-release (x86_64-redhat-linux-gnu)
>
> I have a bunch of arrays, and some of the arrays' values are null or
> might contain spaces.
printf %q is your friend.
$ a[0]=aaa a[1]= a[2]='bbb ccc'
$ printf '%q ' "${a[@]}"
aaa '' bbb\ \ ccc
> I'd love to see an elegant solution. :-)
OK, so printf %q prefers '' and \ over "", but the end result is an
unambiguous array listing that can be fed back into shell code.
--
Eric Blake eblake@redhat.com +1-801-349-2682
Libvirt virtualization library http://libvirt.org
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