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# 1  
Old 12-18-2001
Selecting unknown string.

Work problem:

Need to set up a job to periodically check that the number of entries in the mail queue.

I'm able to do the following: mailq | grep "Mail Queue"

Which returns: Mail Queue (7 requests)

Unfortunately I'm not sure how I select between `(` and `requests`?

TIA Smilie

Cheers,
Cameron
# 2  
Old 12-18-2001
sed 's/Mail Queue (//;s/requests)//'
# 3  
Old 12-18-2001
Pipe mailq to:

perl -ne 'if (/\((\d*?) requests/) { print $1."\n";}'
 

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