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Full Discussion: Replace Special Character With Next Present Byte
Top Forums Shell Programming and Scripting Replace Special Character With Next Present Byte Post 302913975 by Don Cragun on Thursday 21st of August 2014 06:21:52 AM
Old 08-21-2014
This does what you requested:
Code:
#!/bin/bash
# Code supplied by Donald W. Cragun in response to post on www.unix.com:
# https://www.unix.com/shell-programming-and-scripting/250310-replace-special-character-next-present-byte-4.html
/usr/xpg4/bin/awk -F 'ú' '
#{	printf(" Input:%s\nOutput:", $0) }
{	printf("%s", $1)
	for(i = 2; i <= NF; i++) {
		# Print 3 spaces.
		printf("   ")

		# Get repetition count.  (This seems likely to be error prone,
		# Dnd therefore dangerous, but this is what was specified by
		# Dineshkumar Nakka.
		if((cnt = substr($i, 1, 2)) ~ "[0-9][0-9]") {
			# Use decimal if both characters are decimal digits.
			base = cnt
			cnt = cnt + 0
		} else {# Otherwise, use hexadecimal.
			base = "0x" cnt
			cnt = sprintf("%d", "0x" cnt) + 0
		}

		# Print the character to be repeated cnt times.
		chr = substr($i, 3, 1)
#		printf("|cnt=%d(from %s),chr=%s|", cnt, base, chr)
		for(j = 1; j <= cnt; j++)
			printf("%s", chr)

		# Print the remainder of the field.
		printf("%s", substr($i, 4))
	}
	# Add trailing <newline>.
	print ""
}' sample.dat > output.dat

If sample.dat contains:
Code:
302619ú1A? 
ABCD172 2 B10001ú0E Fú08 DineshGú14 KumarNakkaú0E ú3C?INú14?EFGH340
ABC196 7 MIB513AMMODú07 MIByx66mcp00ú06 302619ú1A 00005014072605331600ú0A 980ú32 201407260533160ú14 2TRG212 7 98ú09 3P PAUTO FMGBN  MIB513AMMOAMERICAN MODER
N INSURANCE302619ú40 97871407259787    140724 NBSú19 A2014072520140724

it will produce the output:
Code:
302619   ?????????????????????????? 
ABCD172 2 B10001                 F           DineshG                 KumarNakka                    ????????????????????????????????????????????????????????????IN   ??????????????EFGH340
ABC196 7 MIB513AMMOD          MIByx66mcp00         302619                             00005014072605331600             980                                   201407260533160                 2TRG212 7 98            3P PAUTO FMGBN  MIB513AMMOAMERICAN MODER
N INSURANCE302619                                           97871407259787    140724 NBS                      A2014072520140724

in the file output.dat.
 

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LEARN ABOUT OPENSOLARIS

basename

basename(1)							   User Commands						       basename(1)

NAME

       basename, dirname - deliver portions of path names

SYNOPSIS

       /usr/bin/basename string [suffix]

       /usr/xpg4/bin/basename string [suffix]

       dirname string

DESCRIPTION

       The  basename  utility deletes any prefix ending in / and the suffix (if present in string) from string, and prints the result on the stan-
       dard output. It is normally used inside substitution marks (``) within shell procedures.

   /usr/bin
       The suffix is a pattern defined on the expr(1) manual page.

   /usr/xpg4/bin
       The suffix is a string with no special significance attached to	any of the characters it contains.

       The dirname utility delivers all but the last level of the path name in string.

EXAMPLES

       Example 1 Setting environment variables

       The following example, invoked with the argument /home/sms/personal/mail sets the environment variable NAME to the file named mail and  the
       environment variable MYMAILPATH to the string  /home/sms/personal:

	 example% NAME=`basename $HOME/personal/mail`
	 example% MYMAILPATH=`dirname $HOME/personal/mail`

       Example 2 Compiling a file and moving the output

       This  shell  procedure,	invoked  with  the argument /usr/src/bin/cat.c, compiles the named file and moves the output to cat in the current
       directory:

	 example% cc $1
	 example% mv a.out `basename $1 .c`

ENVIRONMENT VARIABLES

       See environ(5) for descriptions of the following environment variables that affect  the execution of basename and  dirname:  LANG,  LC_ALL,
       LC_CTYPE, LC_MESSAGES, and NLSPATH.

EXIT STATUS

       The following exit values are returned:

       0     Successful completion.

       >0    An error occurred.

ATTRIBUTES

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

   /usr/bin
       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+

   /usr/xpg4/bin
       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWxcu4			   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Standard			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       expr(1), basename(3C), attributes(5), environ(5), standards(5)

SunOS 5.11							    18 Mar 1997 						       basename(1)
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