>>>>> "Phil" == Phil Scarratt <[email protected]> writes:
Phil> Kyle wrote:
>> Hi Folks,
>>
>> I am trying to extract a substring from a string found in a file.
>>
>> The string is: *** End of TF0220 at Thu Jul 2 10:06:51 EST 2009 -
>> RC = 0
>>
>> and the substring I want to extract is TF0220. This is a program
>> name and the length of this name varies. In other words I want to
>> extract whatever is between the words "of" and "at" in a script.
>>
>> How would I likely go about that please?
>>
Phil> Something like this would work:
Phil> cat <file> | perl -nle
Phil> 'if(/^\*\*\*\s+End\s+of\s+([\S]+)\s+at\s+.*/){print $1;}'
Why use cat?
Why not <file perl ...
The extra process plus pipe just wastes resources.
--
Dr Peter Chubb http://www.gelato.unsw.edu.au peterc AT gelato.unsw.edu.au
http://www.ertos.nicta.com.au ERTOS within National ICT Australia
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