Hi I have 2 log files, each with a timestamp on the first 2 fields. However, when I do a awk '/ / {print $1,$2}' logs/x.log on a log file,
it is complicated by the fact that I also get other non timestamp column, 2008-10-20 15:00:06,113 2008-10-20 15:00:06,113 2008-10-20 14:59:48,828 javax.naming.CommunicationException: Could at org.jnp.interfaces.NamingContext.checkRef(NamingContext.java:1414) at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:594) at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:587) at javax.naming.InitialContext.lookup(InitialContext.java:351) at com.cm.common.util.jndi.MultiJndiLookup.getRemoteObjectStub(MultiJndiLookup.java: 377) at com.cm.common.util.jndi.MultiJndiLookup.getRemoteObjectRef(MultiJndiLookup.java: 130) at com.cm.common.util.jndi.JndiLookup.getRemoteObjectRef(JndiLookup.java: 88) at com.cm.system.SystemInfoTopicManager.init(SystemInfoTopicManager.java: 91) at com.cm.system.SystemInfoTopicManager.reconnect(SystemInfoTopicManager.java: 181) at com.m.system.SystemInfoTopicManager.onException(SystemInfoTopicManager.java: 216) at org.jboss.mq.Connection $ExceptionListenerRunnable.run(Connection.java:1348) at java.lang.Thread.run(Thread.java:595) Caused by: at org.jnp.interfaces.NamingContext.getServer(NamingContext.java:269) at org.jnp.interfaces.NamingContext.checkRef(NamingContext.java:1385) ... 11 2008-10-20 14:59:49,800 Unix diff gives extra output like 1,38c1,2 < 2008-10-20 15:00:09,890 WARN [EMAIL PROTECTED]:***:***:***] [ExceptionListener Connection@ 323[token=ConnectionToken:ID:93/1003454235 rcvstate=STARTED]] com.cm.system.SystemInfoTopicManager - Jms server not reachable..it may be down. Deatils:Could not obtain connection to any of these urls: 172.16.70.1:1100,172.16.70.2:1100,172.16.70.3:1100,172.16.70.4:1 100,172.16.70.5:1100 I like to generate a 3rd file after comparing 2 files with format like the other 2 files but containing only the difference between 1st and 2nd files. ie suppose the file contains file1 file2 2008-10-20 15:00:06,113 ... 2008-10-20 15:00:06,113 ... 2008-10-20 15:00:06,113 ... 2008-10-20 15:00:06,113 2008-10-20 14:59:48,828 ... 2008-10-20 14:58:48,900 ... javax.naming.CommunicationException... at org.jnp.interfaces.NamingContext.ch... I'm hoping to get in file3 2008-10-20 14:59:48,828 ...plus rest of line 2008-10-20 14:58:48,900 ...plus rest of line I suppose I also need to read in the 1 field of the timestamp and convert time to unix time to compare and then convert that unix time to this timestamp format. It looks like filecmp.cmp isn't enough to cope with my requirements cuz it only gives a boolean value of 0 or 1, not the actual print out of the differences between 2 files into a new file. Can this be done with Python quickly ? Could someone be kind enough to show me steps to accomplish this ? Any help is appreciated. -- http://mail.python.org/mailman/listinfo/python-list