Find character and Replace character for given position Post: 302739079

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Top Forums Shell Programming and Scripting Find character and Replace character for given position Post 302739079 by RudiC on Monday 3rd of December 2012 12:35:52 PM

12-03-2012

Registered User

Quote:

Originally Posted by Sara183

. . .
And i need to find if '-' present in that string B090712-0013001, then replace the whole string with "O".

This is NOT what you requested in the first place, where you requested a char-by-char replacement of chars in the region 284 - 298. Your sample file has 192 and 176 char lines.
Based on your initial question, in which you limited the solution to using sed, I'd proposed to try this:

Code:

sed -nr 's/^(.{283})/\1\n/; P;         # insert a <newline> after 283 char and print up to it
         s/^.{284}//; h                # remove first 283 chars plus <nl> and put remainder on hold
         s/^(.{15}).*/\1\n/;y/-/O/;P;  # prepare 15 chars (by dropping rest) and transliterate "-" to "O", print
         g                             # get back hold space
         s/^.{15}//;p                  # remove first 15 chars; then print
        ' file |
sed 'N;N;s/\n//g'                      # remove the two <newline> chars inserted and printed before

Quote:

Did anyone know the how to achieve this?

Bumping up threads within few hours DOES NOT REALLY help.

RudiC

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LEARN ABOUT OPENSOLARIS

fcutf16len

FcUtf16Len(3)															     FcUtf16Len(3)

NAME

       FcUtf16Len - count UTF-16 encoded chars

SYNOPSIS

       cc [ flag... ] file... -lfontconfig [ library... ]

       #include <fontconfig.h>

       FcBool FcUtf16Len (FcChar8 *src, FcEndian endian, int len, int *nchar, int *wchar);

DESCRIPTION

       Counts  the  number  of	Unicode  chars in len bytes of src.  Bytes of src are combined into 16-bit units according to endian.  Places that
       count in nchar.	wchar contains 1, 2 or 4 depending on the number of bytes needed to hold the largest unicode  char  counted.   The  return
       value indicates whether string is a well-formed UTF16 string.

VERSION

       Fontconfig version 2.5.0

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWfontconfig		   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Volatile			   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |See XInitThreads(3X11)	   |
       +-----------------------------+-----------------------------+

								 13 November 2007						     FcUtf16Len(3)

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