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how to remove certain entries within a file in AIX

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# 1  
Old 02-05-2010
how to remove certain entries within a file in AIX
I have a rather large log file on our AIX server that contains syslog entries, with each line beginning with the date/time the message was received. The date goes back to Aug 17th of last year. I need to remove all lines within this log file that have its messages earlier than Nov 5th, and keep anything after that. These are the first 3 lines of the file, just to show you what I am talking about.

Aug 17 00:10:54 10..x.x.x local7:info %PIX-6-305012: Teardown dynamic UDP translation from dmz:200.x.x.x/57949 to internet:129.33.35.22/46963 duration 0:02:30
Aug 17 00:10:54 10..x.x.x local7:info %PIX-6-305012: Teardown dynamic UDP translation from dmz:10.x.x.x/123 to internet:170.224.52.43/215 duration 0:02:30
Aug 17 00:10:54 32.243.9.45 local7:info %PIX-6-302020: Built outbound ICMP connection for faddr 10.x.x.x/0 gaddr 32.x.x.x/56697 laddr 32.243.6.139/56697

Assuming the log file is called "syslog.log", how do I strip out all entries prior to Nov 5th?
# 2  
Old 02-05-2010
How about:
Code:
sed '/^Nov  5/,$!d' syslog.log > syslog.stripped

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