grep startup messages from catalina.out file

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# 1  
grep startup messages from catalina.out file

Hello Team,

I am trying to extract date from the following output and trying to compare with current date and if there is 10 minute difference between the two. it should logs message in the file server is started.can anyone help me to implement this in the script?

bash-3.00$ grep -i startup catalina.out
Dec 19, 2010 3:28:36 PM org.apache.catalina.startup.Catalina load
Dec 19, 2010 3:28:39 PM org.apache.catalina.startup.Catalina start
INFO: Server startup in 3258 ms
# 2  
With external modules you could write something cleaner:
perl -MTime::Local -lne'BEGIN {
    @m{qw[Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec]} = 0 .. 11;
  @dt = split /[\s,:]/, $1 if /(.*) org.apache.catalina.startup.Catalina start/;

  END {
    time - timelocal $dt[6], $dt[5],
      $dt[4] = $dt[7] eq "PM" ? $dt[4] + 12 : $dt[4], $dt[1],
      $m{ $dt[0] }, $dt[3] > 600
      and print "More than 10 minutes from the last Tomcat startup";
    }' catalina.out

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