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Full Discussion: SED/AWK file read & manipulation
Top Forums Shell Programming and Scripting SED/AWK file read & manipulation Post 302402837 by sal_tx on Wednesday 10th of March 2010 07:05:19 PM
Old 03-10-2010
SED/AWK file read & manipulation
I have large number of data files, close to 300 files, lets say all files are same kind and have extension .dat , each file have mulitple lines in it.

There is a unique line in each file containing string 'SERVER'. Right after this line there is another line which contain a string 'DIGIT=0', however this line 'DIGIT=0' appears at other places within the file. I need to know how I can change this 'DIGIT=0' to 'DIGIT=1' only where it appears after the line containing the string 'SERVER' and not at other places in the file. All the lines needs to be redirected to another file if the change is not possible on the original file.

Example of cat mydata.dat file:

APP1
APP3
DIGIT=2
DIGIT=1
DIGIT=0
DIGIT=0
APP3
APP2
SERVER
DIGIT=0 <----- I need to change this DIGIT=0 to DIGIT=1
DIGIT=1
APP2

----------------------------------------------------------
If I use sed then it changes DIGIT=0 at other places
for example: sed -e 's/DIGIT=0/DIGIT=1/' file > newfile

I am not that shell script guru so need help from you all, I think it should be simple but I will learn some thing new.

Thanks a lot.
 

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LEARN ABOUT CENTOS

locale::recodedata::inis

Locale::RecodeData::INIS(3)				User Contributed Perl Documentation			       Locale::RecodeData::INIS(3)

NAME

       Locale::RecodeData::INIS - Conversion routines for INIS

SYNOPSIS

       This module is internal to libintl.  Do not use directly!

DESCRIPTION

       This module is generated and contains the conversion tables and routines for INIS.

COMMENTS

       The following comments have been extracted from the original charmap:

	version: 1.0
	 source: ECMA registry
	alias ISO-IR-49

       Please note that aliases listed above are not necessarily valid!

CHARACTER TABLE

       The following table is sorted in the same order as the original charmap.  All character codes are in hexadecimal.  Please read 'ISO-10646'
       as 'ISO-10646-UCS4'.

	Local | ISO-10646 | Description
       -------+-----------+-------------------------------------------------
	   00 |  00000000 | NULL (NUL)
	   01 |  00000001 | START OF HEADING (SOH)
	   02 |  00000002 | START OF TEXT (STX)
	   03 |  00000003 | END OF TEXT (ETX)
	   04 |  00000004 | END OF TRANSMISSION (EOT)
	   05 |  00000005 | ENQUIRY (ENQ)
	   06 |  00000006 | ACKNOWLEDGE (ACK)
	   07 |  00000007 | BELL (BEL)
	   08 |  00000008 | BACKSPACE (BS)
	   09 |  00000009 | CHARACTER TABULATION (HT)
	   0A |  0000000A | LINE FEED (LF)
	   0B |  0000000B | LINE TABULATION (VT)
	   0C |  0000000C | FORM FEED (FF)
	   0D |  0000000D | CARRIAGE RETURN (CR)
	   0E |  0000000E | SHIFT OUT (SO)
	   0F |  0000000F | SHIFT IN (SI)
	   10 |  00000010 | DATALINK ESCAPE (DLE)
	   11 |  00000011 | DEVICE CONTROL ONE (DC1)
	   12 |  00000012 | DEVICE CONTROL TWO (DC2)
	   13 |  00000013 | DEVICE CONTROL THREE (DC3)
	   14 |  00000014 | DEVICE CONTROL FOUR (DC4)
	   15 |  00000015 | NEGATIVE ACKNOWLEDGE (NAK)
	   16 |  00000016 | SYNCHRONOUS IDLE (SYN)
	   17 |  00000017 | END OF TRANSMISSION BLOCK (ETB)
	   18 |  00000018 | CANCEL (CAN)
	   19 |  00000019 | END OF MEDIUM (EM)
	   1A |  0000001A | SUBSTITUTE (SUB)
	   1B |  0000001B | ESCAPE (ESC)
	   1C |  0000001C | FILE SEPARATOR (IS4)
	   1D |  0000001D | GROUP SEPARATOR (IS3)
	   1E |  0000001E | RECORD SEPARATOR (IS2)
	   1F |  0000001F | UNIT SEPARATOR (IS1)
	   20 |  00000020 | SPACE
	   24 |  00000024 | DOLLAR SIGN
	   25 |  00000025 | PERCENT SIGN
	   27 |  00000027 | APOSTROPHE
	   28 |  00000028 | LEFT PARENTHESIS
	   29 |  00000029 | RIGHT PARENTHESIS
	   2A |  0000002A | ASTERISK
	   2B |  0000002B | PLUS SIGN
	   2C |  0000002C | COMMA
	   2D |  0000002D | HYPHEN-MINUS
	   2E |  0000002E | FULL STOP
	   2F |  0000002F | SOLIDUS
	   30 |  00000030 | DIGIT ZERO
	   31 |  00000031 | DIGIT ONE
	   32 |  00000032 | DIGIT TWO
	   33 |  00000033 | DIGIT THREE
	   34 |  00000034 | DIGIT FOUR
	   35 |  00000035 | DIGIT FIVE
	   36 |  00000036 | DIGIT SIX
	   37 |  00000037 | DIGIT SEVEN
	   38 |  00000038 | DIGIT EIGHT
	   39 |  00000039 | DIGIT NINE
	   3A |  0000003A | COLON
	   3B |  0000003B | SEMICOLON
	   3C |  0000003C | LESS-THAN SIGN
	   3D |  0000003D | EQUALS SIGN
	   3E |  0000003E | GREATER-THAN SIGN
	   41 |  00000041 | LATIN CAPITAL LETTER A
	   42 |  00000042 | LATIN CAPITAL LETTER B
	   43 |  00000043 | LATIN CAPITAL LETTER C
	   44 |  00000044 | LATIN CAPITAL LETTER D
	   45 |  00000045 | LATIN CAPITAL LETTER E
	   46 |  00000046 | LATIN CAPITAL LETTER F
	   47 |  00000047 | LATIN CAPITAL LETTER G
	   48 |  00000048 | LATIN CAPITAL LETTER H
	   49 |  00000049 | LATIN CAPITAL LETTER I
	   4A |  0000004A | LATIN CAPITAL LETTER J
	   4B |  0000004B | LATIN CAPITAL LETTER K
	   4C |  0000004C | LATIN CAPITAL LETTER L
	   4D |  0000004D | LATIN CAPITAL LETTER M
	   4E |  0000004E | LATIN CAPITAL LETTER N
	   4F |  0000004F | LATIN CAPITAL LETTER O
	   50 |  00000050 | LATIN CAPITAL LETTER P
	   51 |  00000051 | LATIN CAPITAL LETTER Q
	   52 |  00000052 | LATIN CAPITAL LETTER R
	   53 |  00000053 | LATIN CAPITAL LETTER S
	   54 |  00000054 | LATIN CAPITAL LETTER T
	   55 |  00000055 | LATIN CAPITAL LETTER U
	   56 |  00000056 | LATIN CAPITAL LETTER V
	   57 |  00000057 | LATIN CAPITAL LETTER W
	   58 |  00000058 | LATIN CAPITAL LETTER X
	   59 |  00000059 | LATIN CAPITAL LETTER Y
	   5A |  0000005A | LATIN CAPITAL LETTER Z
	   5B |  0000005B | LEFT SQUARE BRACKET
	   5D |  0000005D | RIGHT SQUARE BRACKET
	   61 |  00000061 | LATIN SMALL LETTER A
	   62 |  00000062 | LATIN SMALL LETTER B
	   63 |  00000063 | LATIN SMALL LETTER C
	   64 |  00000064 | LATIN SMALL LETTER D
	   65 |  00000065 | LATIN SMALL LETTER E
	   66 |  00000066 | LATIN SMALL LETTER F
	   67 |  00000067 | LATIN SMALL LETTER G
	   68 |  00000068 | LATIN SMALL LETTER H
	   69 |  00000069 | LATIN SMALL LETTER I
	   6A |  0000006A | LATIN SMALL LETTER J
	   6B |  0000006B | LATIN SMALL LETTER K
	   6C |  0000006C | LATIN SMALL LETTER L
	   6D |  0000006D | LATIN SMALL LETTER M
	   6E |  0000006E | LATIN SMALL LETTER N
	   6F |  0000006F | LATIN SMALL LETTER O
	   70 |  00000070 | LATIN SMALL LETTER P
	   71 |  00000071 | LATIN SMALL LETTER Q
	   72 |  00000072 | LATIN SMALL LETTER R
	   73 |  00000073 | LATIN SMALL LETTER S
	   74 |  00000074 | LATIN SMALL LETTER T
	   75 |  00000075 | LATIN SMALL LETTER U
	   76 |  00000076 | LATIN SMALL LETTER V
	   77 |  00000077 | LATIN SMALL LETTER W
	   78 |  00000078 | LATIN SMALL LETTER X
	   79 |  00000079 | LATIN SMALL LETTER Y
	   7A |  0000007A | LATIN SMALL LETTER Z
	   7C |  0000007C | VERTICAL LINE
	   7F |  0000007F | DELETE (DEL)

AUTHOR

       Copyright (C) 2002-2009, Guido Flohr <guido@imperia.net>, all rights reserved.  See the source code for details.

       This software is contributed to the Perl community by Imperia (<http://www.imperia.net/>).

SEE ALSO

       Locale::RecodeData(3), Locale::Recode(3), perl(1)

POD ERRORS

       Hey! The above document had some coding errors, which are explained below:

       Around line 863:
	   =cut found outside a pod block.  Skipping to next block.

perl v5.16.3							    2014-06-10					       Locale::RecodeData::INIS(3)
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