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Full Discussion: Script to manipulate logfile text
Top Forums Shell Programming and Scripting Script to manipulate logfile text Post 302263827 by Franklin52 on Tuesday 2nd of December 2008 03:05:06 PM
Old 12-02-2008
Quote:
Originally Posted by rosspaddock
Could you possibly run me through what each line of the code is doing so i can alter it if need be regards ross
Ok, here we go:
Code:
awk '{
s=$1" , "substr($2,1,5)" , "$6
for(i=1;i<4;i++) {
  getline;s=s" , "$6
}
print s}' file

Code:
s=$1" , "substr($2,1,5)" , "$6

On the 1st, 5th, 9th line etc. assign field 1, the first 5 characters of the 2nd field and the 6th field to string s using " , " as delimiters.

Code:
for(i=1;i<4;i++) {
  getline;s=s" , "$6
}

Get the next 3 lines and add the 6th field after the string s.

Code:
print s

Print the string s and get the next line.
After printing the first string the next line is the 5th line since we have read 3 strings in the loop after the 1st string.

Regards
 

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LEARN ABOUT MOJAVE

page_util_quote

page_util_quote(n)					      Parser generator tools						page_util_quote(n)

__________________________________________________________________________________________________________________________________________________

NAME

       page_util_quote - page character quoting utilities

SYNOPSIS

       package require page::util::quote  ?0.1?

       package require snit

       ::page::util::quote::unquote char

       ::page::util::quote::quote'tcl char

       ::page::util::quote::quote'tclstr char

       ::page::util::quote::quote'tclcom char

_________________________________________________________________

DESCRIPTION

       This package provides a few utility commands to convert characters into various forms.

API

       ::page::util::quote::unquote char
	      A  character,  as stored in an abstract syntax tree by a PEG processor (See the packages grammar::peg::interpreter, grammar::me, and
	      their relations), i.e. in some quoted form, is converted into the equivalent Tcl character. The character is returned as the  result
	      of the command.

       ::page::util::quote::quote'tcl char
	      This command takes a Tcl character (internal representation) and converts it into a string which is accepted by the Tcl parser, will
	      regenerate the character in question and is 7bit ASCII. The string is returned as the result of this command.

       ::page::util::quote::quote'tclstr char
	      This command takes a Tcl character (internal representation) and converts it into a string which is accepted by the Tcl  parser  and
	      will generate a human readable representation of the character in question.  The string is returned as the result of this command.

	      The  string  does not use any unprintable characters. It may use backslash-quoting. High UTF characters are quoted to avoid problems
	      with the still prevalent ascii terminals. It is assumed that the string will be used in a double-quoted environment.

       ::page::util::quote::quote'tclcom char
	      This command takes a Tcl character (internal representation) and converts it into a string which is accepted by the Tcl parser  when
	      used within a Tcl comment. The string is returned as the result of this command.

BUGS, IDEAS, FEEDBACK
       This  document,	will  undoubtedly  contain  bugs  and  other  problems.  Please report such in the category page of the Tcllib SF Trackers
       [http://sourceforge.net/tracker/?group_id=12883].  Please also report any ideas for enhancements you may have.

KEYWORDS

       page, parser generator, quoting, text processing

CATEGORY

       Page Parser Generator

COPYRIGHT

       Copyright (c) 2007 Andreas Kupries <andreas_kupries@users.sourceforge.net>

page									1.0							page_util_quote(n)
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