Re: Preventing "no matches found:"

[Tim McNerney <yargo@mac.com>]

Thanks to both. I was looking for the ,N, as I've come up with a few  
methods to "silence" it otherwise, but I felt there was likely a more  
elegant manner.

--Tim

On Jul 22, 2005, at 7:10 PM, Jos Backus wrote:

> On Fri, Jul 22, 2005 at 05:14:49PM -0700, John Reese wrote:
>
>> You can turn on noglob for a single pattern by adding a (N) flag.  So
>> you could just do:
>>
>> rm ~/log/**/*.log(m+7,N)
>>
>
> I knew there was a flag like that but I couldn't find it offhand.
>
>
>> But that doesn't really solve your problem, because if rm has no
>> arguments, it'll complain.  Now, my personal advice would be to not
>> care, but if you do care, you could do this:
>> deadlogs=(~/log/**/*.log(m+7,N))
>> ((#deadlogs)) && rm $deadlogs
>>
>
> I used xargs so rm would never be called without arguments,  
> avoiding this
> problem. But your solution is a little more flexible, e.g. you  
> could emit a
> message depending on whether any files will be/were removed:
>
>     deadlogs=(~/log/**/*.log(m+7,N))
>     if (( $#deadlogs == 0 ))
>     then
>     echo "No longs removed."
>     else
>     rm $deadlogs
>     echo "$#deadlogs logs removed."
>     fi
>
> -- 
> Jos Backus
> jos at catnook.com
>