i want to search
at java.lang.Object.wait(Native Method)
- waiting on <0x17351c50> (a weblogic.rjvm.ResponseImpl)
at weblogic.rjvm.ResponseImpl.waitForData(ResponseImpl.java:76)
- locked <0x17351c50> (a weblogic.rjvm.ResponseImpl)
at weblogic.rjvm.ResponseImpl.getTxContext(ResponseImpl.java:104)
at weblogic.rjvm.BasicOutboundRequest.sendReceive(BasicOutboundRequest.java:104)
at weblogic.rmi.internal.BasicRemoteRef.invoke(BasicRemoteRef.java:164)
at ROIDLookupImpl_WLStub.lookupROIDS(Unknown Source)
at weblogic.servlet.internal.HttpServer.lookupROIDS(HttpServer.java:1101)
at weblogic.servlet.internal.session.ReplicatedSessionContext.getROIDSFromRemote(ReplicatedSessionContext.java:309)
at weblogic.servlet.internal.session.ReplicatedSessionContext.getSessionInternal(ReplicatedSessionContext.java:421)
at weblogic.servlet.internal.ServletRequestImpl.getValidSession(ServletRequestImpl.java:2632)
at weblogic.servlet.internal.ServletRequestImpl.getSession(ServletRequestImpl.java:2248)
at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:3742)
at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2766)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:224)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:183) "
this pattern in a log file and count the number of times it occurs in the large log file using unix.
so how can i do that?
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That isn't a pattern. It is an example, and other examples that you want to find are likely to be slightly differentStephen C– Stephen C2015-02-22 09:13:29 +00:00Commented Feb 22, 2015 at 9:13
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no i need to find this expression in a file this is not an example in real problem i need to find this onlyAshish Joshi– Ashish Joshi2015-02-22 21:37:48 +00:00Commented Feb 22, 2015 at 21:37
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1what Stephen C is trying to explain is that, although the error may be the same on many places, there may be small differences, in for example memory addresses.Frido Emans– Frido Emans2015-02-23 00:08:16 +00:00Commented Feb 23, 2015 at 0:08
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3 Answers
you can try pcregrep, as suggested in this: https://stackoverflow.com/a/2686705/2380702
This line should output the number of occurences:
pcregrep -c -M -f testsnippet.txt logfile.txt
where logfile.txt is your log you want to scan, and testsnippet.txt contains your snippet, with line-endings replaced by \n, and all dots and brackets preceded by slashes. In other words:
at java\.lang\.Object\.wait\(Native Method\)\n - waiting on <0x17351c50> \(a weblogic\.rjvm\.ResponseImpl\)\n at weblogic\.rjvm\.ResponseImpl\.waitForData\(ResponseImpl\.java:76\)\n - locked <0x17351c50> \(a weblogic\.rjvm\.ResponseImpl\)\n at weblogic\.rjvm\.ResponseImpl\.getTxContext\(ResponseImpl\.java:104\)\n at weblogic\.rjvm\.BasicOutboundRequest\.sendReceive\(BasicOutboundRequest\.java:104\)\n at weblogic\.rmi\.internal\.BasicRemoteRef\.invoke\(BasicRemoteRef\.java:164\)\n at ROIDLookupImpl_WLStub\.lookupROIDS\(Unknown Source\)\n at weblogic\.servlet\.internal\.HttpServer\.lookupROIDS\(HttpServer\.java:1101\)\n at weblogic\.servlet\.internal\.session\.ReplicatedSessionContext\.getROIDSFromRemote\(ReplicatedSessionContext\.java:309\)\n at weblogic\.servlet\.internal\.session\.ReplicatedSessionContext\.getSessionInternal\(ReplicatedSessionContext\.java:421\)\n at weblogic\.servlet\.internal\.ServletRequestImpl\.getValidSession\(ServletRequestImpl\.java:2632\)\n at weblogic\.servlet\.internal\.ServletRequestImpl\.getSession\(ServletRequestImpl\.java:2248\)\n at weblogic\.servlet\.internal\.WebAppServletContext\.invokeServlet\(WebAppServletContext\.java:3742\)\n at weblogic\.servlet\.internal\.ServletRequestImpl\.execute\(ServletRequestImpl\.java:2766\)\n at weblogic\.kernel\.ExecuteThread\.execute\(ExecuteThread\.java:224\)\n at weblogic\.kernel\.ExecuteThread\.run\(ExecuteThread\.java:183\)
You may want to replace the memory addresses by something like <0x[0-9a-f]+>, to catch different addresses, but I have not tested this, since that was not your question :) Above example does exactly what you asked.
2 Comments
Stephen C
Yea ... the problem with grep / fgrep / egrep is that they don't cope with patterns that span multiple lines.
Frido Emans
added full working example
When you find an at at the start of the line add to your count and stop counting until you see a line that does not start with at.
awk 'BEGIN {count=0; boolCount=0}; /^at/ {if (boolCount==0) count++; boolCount=1}; !/^at/ {boolCount=0}; END {print "Found: " count} ' logfile
2 Comments
Ashish Joshi
no i need to count the number of occurrence of the whole block that whole code is repeating in another file if i will count at it is coming 17 times in one block where it need to be counted 1 only.
Walter A
When you have 17 at's in one block without lines that do not have an at, it will be counted only once, thanks to the boolCount. My mistake is that you might need to add some spaces or a tab between ^ and at:
/^ at/. The script counts the number of blocks identified with an at at the beginning of the line.printf "multi\nline\ninput\n" | grep -Pzo "(?s)mul.*put" | wc -l
you'll have to divide that by number of lines you expect your multiline pattern to span though.
