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Full Discussion: awk logic and math help
Top Forums UNIX for Dummies Questions & Answers awk logic and math help Post 302579488 by agama on Monday 5th of December 2011 08:36:56 PM
Old 12-05-2011
Try this:

Code:
awk -v cord=${cord:-25} '
    /variableStep/ {
        if( !printed++ )          # allows multiple headers in the input 
            print;
        next
    }
    {
        if( $1 > last+cord)      # current isn't in sequence, catch up
            for( i = last+cord; i < $1; i+= cord )
                printf( "%d 0\n", i );
        printf( "%s %s\n", $1, $2 );
        last = $1;
    }
' ${NAME}.wig > ${NAME}zeros.wig

Last edited by agama; 12-05-2011 at 09:37 PM.. Reason: comments
This User Gave Thanks to agama For This Post:
wyarosh
 

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LEARN ABOUT BSD

eqnchar

EQNCHAR(7)						 Miscellaneous Information Manual						EQNCHAR(7)

tdefine  ciplus  %  ";O"  %  ndefine  ciplus  % + % tdefine citimes % "O" % ndefine citimes % x % tdefine =wig % "~" % ndefine =wig % "~" % tdefine
bigstar % ";x" % ndefine bigstar % - % tdefine =dot % "." % ndefine =dot % = dot % tdefine orsign % "/" % ndefine orsign % / % tdefine andsign  %
"/"  %  ndefine andsign % / % tdefine =del % "/" % ndefine =del % = to DELTA % tdefine oppA % "" % ndefine oppA % - % tdefine oppE %"-" % nde-
fine oppE % / % tdefine incl % "--" % ndefine incl % _ % tdefine nomem % "/" % ndefine nomem % / % tdefine angstrom % "o" % ndefine angstrom  %  A
to  o  %  tdefine star %{ roman "*"}% ndefine st/r % * % tdefine || % || % tdefine <wig % ~" % ndefine <wig %{ < from "~" }% tdefine >wig % "~" %
ndefine >;wig %{ > from "~" }% tdefine langle % "" % ndefine langle %<% tdefine rangle % "/" % ndefine rangle %>% tdefine hbar	%  "_"	%  ndefine
hbar % - % ndefine ppd % | % tdefine ppd % "|" % tdefine <-> % "->" % ndefine <-> % "<-->" % tdefine <=> % "=>" % ndefine <=> % "<=>" % tdefine |<
% "|" % ndefine |< % | % tdefine |> % "|" % ndefine |> % > % tdefine ang % "_" % ndefine ang % _ % tdefine rang % "_" % ndefine rang % L % tdefine
3dot  % ";." % ndefine 3dot % . % tdefine thf % "..." % ndefine thf % .. % tdefine quarter % roman 1/4 % ndefine quarter % 1/4 % tdefine 3quarter %
roman 3/4 % ndefine 3quarter % 3/4 % tdefine degree % o % ndefine degree % nothing sup o % tdefine square % [] % ndefine square  %  []	%  tdefine
circle % O % ndefine circle % O % tdefine blot % ";[]" % ndefine blot % X % tdefine bullet % o % ndefine bullet % e % tdefine -wig % "~=" % ndefine
-wig % - to "~" % tdefine wig % ~ % ndefine wig % "~" % tdefine prop % oc % ndefine prop % oc % tdefine empty % {} % ndefine empty % /	%  tdefine
member	% E % ndefine member % - % tdefine cup % U % ndefine cup % U % define cap % (^) % define subset % (= % define supset % =) % define !subset
% (_ % define !supset % _) %

NAME

       eqnchar - special character definitions for eqn

SYNOPSIS

       eqn /usr/pub/eqnchar [ files ] | troff [ options ]

       neqn /usr/pub/eqnchar [ files ] | nroff [ options ]

DESCRIPTION

       Eqnchar contains troff and nroff character definitions for constructing characters that are not available on the Graphic  Systems  typeset-
       ter.  These definitions are primarily intended for use with eqn and neqn.  It contains definitions for the following characters

       "ciplus"  ciplus 				"||"	  ||					"square"  square
       "citimes" citimes				"langle"  langle				"circle"  circle
       "wig"	 wig					"rangle"  rangle				"blot"	  blot
       "-wig"	 -wig					"hbar"	  hbar					"bullet"  bullet
       ">wig"	 >wig					"ppd"	  ppd					"prop"	  prop
       "<wig"	 <wig					"<->"	  <->					"empty"   empty
       "=wig"	 =wig					"<=>"	  <=>					"member"  member
       "star"	 star					"|<"	  |<					"nomem"   nomem
       "bigstar" bigstar				"|>"	  |>					"cup"	  cup
       "=dot"	 =dot					"ang"	  ang					"cap"	  cap
       "orsign"  orsign 				"rang"	  rang					"incl"	  incl
       "andsign" andsign				"3dot"	  3dot					"subset"  subset
       "=del"	 =del					"thf"	  thf					"supset"  supset
       "oppA"	 oppA					"quarter" quarter				"!subset" !subset
       "oppE"	 oppE					"3quarter"					3quarter  "!supset"!supset
       "angstrom"					angstrom  "degree"				degree

FILES

       /usr/pub/eqnchar

SEE ALSO

       troff(1), eqn(1)

3rd Berkeley Distribution					   May 20, 1985 							EQNCHAR(7)
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