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Top Forums Shell Programming and Scripting Sed/awk gods, I need your Help! Fancy log extraction Post 302123045 by gnagus on Friday 22nd of June 2007 03:47:21 PM
Old 06-22-2007
Quote:
Originally Posted by aigles
Try the foolowing script (named th.sh):

Code:
awk -v Id=$123456 -v FS='[][]' '
   $7 ~ "BEGIN REQUEST sessionID=" Id {
      thread = $4;
   }
   $4 == thread
   $7 ~/END REQUEST/ { thread="" }
' th.txt

Inputfile (th.txt):
Code:
[2007-06-22 09:33:15,840][thread-1][BEG_]BEGIN REQUEST sessionID=100001
[2007-06-22 09:33:15,843][thread-1][BEG_]BEGIN REQUEST sessionID=123456
[2007-06-22 09:33:15,844][thread-1][DEB_]boatload of lines for thread-1 detailing the whereabouts of the customer
[2007-06-22 09:33:15,844][thread-2][DEB_]Here is activity from another customer - we don't need that
[2007-06-22 09:33:15,844][thread-1][DEB_]boatload of lines for thread-1 detailing the whereabouts of the customer
[2007-06-22 09:33:15,844][thread-3][DEB_]more activity from yet another customer- we don't need that
[2007-06-22 09:33:15,844][thread-1][DEB_]boatload of lines for thread-1 detailing the whereabouts of the customer
[2007-06-22 09:33:15,843][thread-1][BEG_]END REQUEST
[2007-06-22 09:33:15,843][thread-34][BEG_]BEGIN REQUEST sessionID=34444
[2007-06-22 09:33:15,844][thread-1][DEB_]Another customer took thread-1! We don't want that log entry either
[2007-06-22 09:33:15,844][thread-34][DEB_]yet more activity from the customer but under a different thread!
[2007-06-22 09:33:15,843][thread-34][BEG_]END REQUEST

Output:
Code:
[2007-06-22 09:33:15,843][thread-1][BEG_]BEGIN REQUEST sessionID=123456
[2007-06-22 09:33:15,844][thread-1][DEB_]boatload of lines for thread-1 detailing the whereabouts of the customer
[2007-06-22 09:33:15,844][thread-1][DEB_]boatload of lines for thread-1 detailing the whereabouts of the customer
[2007-06-22 09:33:15,844][thread-1][DEB_]boatload of lines for thread-1 detailing the whereabouts of the customer
[2007-06-22 09:33:15,843][thread-1][BEG_]END REQUEST

Salut p'tit cousin français! Smilie

I don't know what awk/nawk version you're using, but mine definitively doesn't like your script.... it just dies with a not-very-helpful "awk: syntax error near line 1"

Running awk under Solaris 9 here....
 

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THREAD-KEYRING(7)					     Linux Programmer's Manual						 THREAD-KEYRING(7)

NAME
thread-keyring - per-thread keyring DESCRIPTION
The thread keyring is a keyring used to anchor keys on behalf of a process. It is created only when a thread requests it. The thread keyring has the name (description) _tid. A special serial number value, KEY_SPEC_THREAD_KEYRING, is defined that can be used in lieu of the actual serial number of the calling thread's thread keyring. From the keyctl(1) utility, '@t' can be used instead of a numeric key ID in much the same way, but as keyctl(1) is a program run after forking, this is of no utility. Thread keyrings are not inherited across clone(2) and fork(2) and are cleared by execve(2). A thread keyring is destroyed when the thread that refers to it terminates. Initially, a thread does not have a thread keyring. If a thread doesn't have a thread keyring when it is accessed, then it will be created if it is to be modified; otherwise the operation fails with the error ENOKEY. SEE ALSO
keyctl(1), keyctl(3), keyrings(7), persistent-keyring(7), process-keyring(7), session-keyring(7), user-keyring(7), user-session-keyring(7) Linux 2017-03-13 THREAD-KEYRING(7)
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