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Full Discussion: Adding new fields to an existing layout
Top Forums Shell Programming and Scripting Adding new fields to an existing layout Post 302361822 by Amit.Sagpariya on Wednesday 14th of October 2009 07:22:18 AM
Old 10-14-2009
Here is code :
Code:
#! /bin/ksh

aa=" "
cnt=`wc -l a.txt | awk '{print $1}'`
num=`expr $cnt - 1 | bc`
head -$num a.txt >> new.txt
let i=1

let sec=`tail -1 new.txt | awk '{print $2}'`
las=`tail -1 new.txt | awk '{print $4}'`
let llas=`echo $las | awk -F, '{print $1}'`


bcnt=`wc -l b.txt | awk '{print $1}'`

while [ $i -le $bcnt ]
do
	col1=`head -$i b.txt| tail -1 | awk '{print $1}'`
	col2=`expr $sec + $llas | bc`
	col3=`head -$i b.txt | tail -1 | awk '{print $2}'`
	col4=`head -$i b.txt | tail -1 | awk '{print $3}'`
	echo "${col1}${aa}${col2}${aa}${col3}${aa}${col4}" >> new.txt
	let i=`expr $i + 1 | bc`
	let sec=$col2
	let llas=`echo $col4 | awk -F, '{print $1}'`
	
done
tail -1 a.txt >> new.txt

 

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log4c_layout_format

layout.h(3)							       log4c							       layout.h(3)

NAME

       layout.h -

       Interface for user specific layout format of log4c_logging_event events.

SYNOPSIS

       #include <log4c/defs.h>
       #include <log4c/logging_event.h>
       #include <stdio.h>

   Data Structures
       struct log4c_layout_type
	   log4c layout type class

   Defines
       #define log4c_layout_type_define(a_type)

   Typedefs
       typedef struct __log4c_layout log4c_layout_t
       typedef struct log4c_layout_type log4c_layout_type_t
	   log4c layout type class

   Functions
       LOG4C_API const log4c_layout_type_t * log4c_layout_type_get (const char *a_name)
       LOG4C_API const log4c_layout_type_t * log4c_layout_type_set (const log4c_layout_type_t *a_type)
       LOG4C_API log4c_layout_t * log4c_layout_get (const char *a_name)
       LOG4C_API log4c_layout_t * log4c_layout_new (const char *a_name)
       LOG4C_API void log4c_layout_delete (log4c_layout_t *a_layout)
       LOG4C_API const char * log4c_layout_get_name (const log4c_layout_t *a_layout)
       LOG4C_API const log4c_layout_type_t * log4c_layout_get_type (const log4c_layout_t *a_layout)
       LOG4C_API const log4c_layout_type_t * log4c_layout_set_type (log4c_layout_t *a_layout, const log4c_layout_type_t *a_type)
       LOG4C_API void * log4c_layout_get_udata (const log4c_layout_t *a_layout)
       LOG4C_API void * log4c_layout_set_udata (log4c_layout_t *a_layout, void *a_udata)
       LOG4C_API const char * log4c_layout_format (const log4c_layout_t *a_layout, const log4c_logging_event_t *a_event)
       LOG4C_API void log4c_layout_print (const log4c_layout_t *a_layout, FILE *a_stream)
       LOG4C_API void log4c_layout_types_print (FILE *fp)

Detailed Description
       Interface for user specific layout format of log4c_logging_event events.

       Todo
	   the layout interface needs a better configuration system depending on the layout type. The udata field is a just a trick.

       Todo
	   a pattern layout would be welcomed !!

Define Documentation
   #define log4c_layout_type_define(a_type) Helper macro to define static layout types.
       Parameters:
	   a_type the log4c_layout_type_t object to define

       Warning:
	   needs GCC support: otherwise this macro does nothing

       Deprecated
	   This macro, and the static initialialization of layouts in general, is deprecated. Use rather the log4c_layout_type_set() function to
	   initialize your appenders before calling log4c_init()

Typedef Documentation
   typedef struct __log4c_layout log4c_layout_t log4c layout class
   typedef struct log4c_layout_type  log4c_layout_type_t
       log4c layout type class Attributes description:

       o name layout type name
       o format
Function Documentation
   LOG4C_API void log4c_layout_delete (log4c_layout_t *a_layout) Destructor for layout.
   LOG4C_API const char* log4c_layout_format (const log4c_layout_t *a_layout, const log4c_logging_event_t *a_event) format a log4c_logging_event
       events to a string.
       Parameters:
	   a_layout the log4c_layout_t object
	   a_event a logging_event_t object
       Returns:
	   an appendable string.
   LOG4C_API log4c_layout_t* log4c_layout_get (const char *a_name) Get a pointer to an existing layout.
       Parameters:
	   a_name the name of the layout to return.
       Returns:
	   a pointer to an existing layout, or NULL if no layout with the specfied name exists.
   LOG4C_API const char* log4c_layout_get_name (const log4c_layout_t *a_layout) Parameters:
	   a_layout the log4c_layout_t object
       Returns:
	   the layout name
   LOG4C_API const log4c_layout_type_t* log4c_layout_get_type (const log4c_layout_t *a_layout) Parameters:
	   a_layout the log4c_layout_t object
       Returns:
	   a log4c_layout_type_t object
   LOG4C_API void* log4c_layout_get_udata (const log4c_layout_t *a_layout) Parameters:
	   a_layout the log4c_layout_t object
       Returns:
	   the layout user data
   LOG4C_API log4c_layout_t* log4c_layout_new (const char *a_name) Constructor for layout.
   LOG4C_API void log4c_layout_print (const log4c_layout_t *a_layout, FILE *a_stream) prints the layout on a stream
       Parameters:
	   a_layout the log4c_layout_t object
	   a_stream the stream
   LOG4C_API const log4c_layout_type_t* log4c_layout_set_type (log4c_layout_t *a_layout, const log4c_layout_type_t *a_type) sets the layout type
       Parameters:
	   a_layout the log4c_layout_t object
	   a_type the new layout type
       Returns:
	   the previous layout type
   LOG4C_API void* log4c_layout_set_udata (log4c_layout_t *a_layout, void *a_udata) sets the layout user data
       Parameters:
	   a_layout the log4c_layout_t object
	   a_udata the new layout user data
       Returns:
	   the previous layout user data
   LOG4C_API const log4c_layout_type_t* log4c_layout_type_get (const char *a_name) Get a pointer to an existing layout type.
       Parameters:
	   a_name the name of the layout type to return.
       Returns:
	   a pointer to an existing layout type, or NULL if no layout type with the specified name exists.
   LOG4C_API const log4c_layout_type_t* log4c_layout_type_set (const log4c_layout_type_t *a_type) Use this function to register a layout type with
       log4c. Once this is done you may refer to this type by name both programatically and in the log4c configuration file.
       Parameters:
	   a_type a pointer to the new layout type to set.
       Returns:
	   a pointer to the previous layout type of same name.
       Example code fragment:
	const log4c_layout_type_t log4c_layout_type_xml = {
	   's13_xml',
	   xml_format,
	};

	log4c_layout_type_set(&log4c_layout_type_xml);

   LOG4C_API void log4c_layout_types_print (FILE *fp) prints all the current registered layout types on a stream
       Parameters:
	   fp the stream
Author
       Generated automatically by Doxygen for log4c from the source code.

Version 1.2.1							  Mon May 2 2011						       layout.h(3)
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