Partial retrieve

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# 1  
Old 08-29-2013
Partial retrieve

I have this in log file /var/log/maillog
XXX YYY ZZZ []:15214 I=[]:25 AAA BBB CCC

I need awk/sed operation on this, so that it retrieves only the first IP.
cat /var/log/maillog | sed_operation

# 2  
Old 08-29-2013
awk -F"[][]" '{print $2}' /var/log/maillog

This User Gave Thanks to Jotne For This Post:
# 3  
Old 08-29-2013
perl -lne 'print $1 if /(\d+\.\d+\.\d+\.\d+)/' /var/log/maillog

This User Gave Thanks to rajamadhavan For This Post:
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