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Top Forums UNIX for Dummies Questions & Answers Concatenate three lines into one Post 302913047 by FredAtArrow on Wednesday 13th of August 2014 01:21:30 PM
Old 08-13-2014
Concatenate three lines into one

Hi. I'm new to this forum.

I am attempting to parse an Audit Log from Cognos/TM1, selecting only Event IDs of "client" which are found on the "start-tag" record. These Logs are in a pseudo-XML format but not a true XML format. I want to FTP an Audit Log File from the Cognos server to our UNIX server. Then I want to look for "client" at position 28 in a given line, and upon finding that, write the current line and the next two lines after it as one output line. (We have Shell Scripts already that FTP data from Windows to UNIX, so I don't need assistance with that.)

These lines have CRLF (I think) after each one. When I view them in Windows-based editors (like TextPad), they are separate lines.

I'm a Unix script newbie. I've searched the Web for possible solutions but have not found any. I have found examples of merging two lines by patterns using sed and one using sed (I think) and a line range, but the sample had a hard-coded line range.

We run the AIX Flavor of UNIX at my company. We use KSH as the Shell Script most of the time.

Pseudo-code:

IF current-line-number line has "client" at position 28, write current-line-number concatenate current-line-number plus 1 concatenate current-line-number plus 2 FI

Thank you for your help.

Last edited by FredAtArrow; 08-13-2014 at 02:27 PM..
 

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event_class(5)															    event_class(5)

NAME
event class file - The file that contains the declaration of an event class. DESCRIPTION
Audit events can be logically grouped into event classes. Event classes are defined in event class files. An event class file contains an event class number and a list of event numbers corresponding to audit events. All event class files must be created in the dcelocal/etc/audit/ec directory. The name of the event class file becomes the name of the event class. The recommended naming convention for event class files is: dce_server-name_class where class is a descriptive text that characterizes the event class. Event class files must be write-protected by the local operating system (that is, only administrators should have write access to these files). Audit clients read these files to maintain an event table in their address space. Optionally, an event class file can contain a SEP line. This line contains a list of prefixes of the event numbers in the file. The SEP line speeds up the scanning performed by the Audit clients. Audit clients which do not have events with one of the prefixes listed will not scan the event list. If the SEP line is not provided in the file, Audit clients will have to read the entire file to find out if the event class file contains any of their events. Empty lines are ignored in the event class file. Comments are designated by the number sign (#) placed before the comment text. The Event Class File Format The format of an event class file is: ECN=event_class_number SEP=prefix_1 prefix_2 ... # comments start with the number sign event_num- ber_1 event_number_2 EXAMPLES
Following is an example of an event class file for the event class ec_local_authentication: ECN = 0x00000001 SEP = 0x100 # AS_Request 0x00000100 # TGS_TicketReq 0x00000101 # TGS_RenewReq 0x00000102 # TGS_ValidateReq 0x00000103 event_class(5)
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