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Full Discussion: How to split a dat file based on another file ni UNIX?
Top Forums UNIX for Beginners Questions & Answers Answers to Frequently Asked Questions How to split a dat file based on another file ni UNIX? Post 302996700 by pogo on Monday 1st of May 2017 03:13:03 AM
Old 05-01-2017
How to split a dat file based on another file ni UNIX?
i have two files , one is var.txt and another res.dat file

var.txt contains informaton like below
Code:
date,request,sales,item

20171015,1,123456,216

20171015,1,123456,217

20171015,2,345678,214

20171015,3,456789,218

and res.dat contains is a one huge file contains information like below
Code:
RTCCVB01 213456 123456 216

.

.

.

.

.

.

VBPCVB01

RTCCVB01 213456 345678 214

.

.

.

.

.

.

VBPCVB01

RTCCVB01 213456 123456 217

.

.

.

.

.

.

VBPCVB01

RTCCVB01 213456 456789 218

.

.

.

.

.

.

VBPCVB01

For a unique request i have to create a separate dat file, for example

for Request 1

123456.dat
Code:
RTCCVB01 213456 123456 216

.

.

.

.

.

.

VBPCVB01

RTCCVB01 213456 123456 217

.

.

.

.

.

.

VBPCVB01

for Request 2 345678.dat
Code:
RTCCVB01 213456 345678 214

.

.

.

.

.

.

VBPCVB01

for Request 3 456789.dat
Code:
RTCCVB01 213456 456789 218

.

.

.

.

.

.

VBPCVB01

sales occur at 50-56 position in res.dat file item occur at 72-79 position in res.dat file

i have to write a shell script which will do below for each unique request from var.txt it will take sales and item and extract information from res.dat and will be creating separate dat files till all request number is done .
Last edited by vbe; 05-01-2017 at 05:28 AM.. Reason: code tags please
 

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LEARN ABOUT REDHAT

mac2unix

dos2unix(1)						      General Commands Manual						       dos2unix(1)

NAME

       dos2unix - DOS/MAC to UNIX text file format converter

SYNOPSYS

       dos2unix [options] [-c convmode] [-o file ...] [-n infile outfile ...]

       Options:

       [-hkqV] [--help] [--keepdate] [--quiet] [--version]

DESCRIPTION

       This manual page documents dos2unix, the program that converts plain text files in DOS/MAC format to UNIX format.

OPTIONS

       The following options are available:

       -h --help
	      Print online help.

       -k --keepdate
	      Keep the date stamp of output file same as input file.

       -q --quiet
	      Quiet mode. Suppress all warning and messages.

       -V --version
	      Prints version information.

       -c --convmode convmode
	      Sets conversion mode. Simulates dos2unix under SunOS.

       -o --oldfile file ...
	      Old file mode. Convert the file and write output to it. The program default to run in this mode. Wildcard names may be used.

       -n --newfile infile outfile ...
	      New  file  mode.	Convert the infile and write output to outfile. File names must be given in pairs and wildcard names should NOT be
	      used or you WILL lost your files.

EXAMPLES

       Get input from stdin and write output to stdout.

	      dos2unix

       Convert and replace a.txt. Convert and replace b.txt.

	      dos2unix a.txt b.txt

	      dos2unix -o a.txt b.txt

       Convert and replace a.txt in ASCII conversion mode.  Convert and replace b.txt in ISO conversion mode.  Convert	c.txt  from  Mac  to  Unix
       ascii format.

	      dos2unix a.txt -c iso b.txt

	      dos2unix -c ascii a.txt -c iso b.txt

	      dos2unix -c mac a.txt b.txt

       Convert and replace a.txt while keeping original date stamp.

	      dos2unix -k a.txt

	      dos2unix -k -o a.txt

       Convert a.txt and write to e.txt.

	      dos2unix -n a.txt e.txt

       Convert a.txt and write to e.txt, keep date stamp of e.txt same as a.txt.

	      dos2unix -k -n a.txt e.txt

       Convert and replace a.txt. Convert b.txt and write to e.txt.

	      dos2unix a.txt -n b.txt e.txt

	      dos2unix -o a.txt -n b.txt e.txt

       Convert c.txt and write to e.txt. Convert and replace a.txt.  Convert and replace b.txt. Convert d.txt and write to f.txt.

	      dos2unix -n c.txt e.txt -o a.txt b.txt -n d.txt f.txt

DIAGNOSTICS

BUGS

       The program does not work properly under MSDOS in stdio processing mode.  If you know why is that so, please tell me.

AUTHORS

       Benjamin Lin - <blin@socs.uts.edu.au>

       Bernd Johannes Wuebben (mac2unix mode) <wuebben@kde.org>

MISCELLANY

       Tested environment:

	      Linux 1.2.0 with GNU C 2.5.8

	      SunOS 4.1.3 with GNU C 2.6.3

	      MS-DOS 6.20 with Borland C++ 4.02

       Suggestions and bug reports are welcome.

SEE ALSO

       unix2dos(1) mac2unix(1)

1995.03.31							   dos2unix v3.0						       dos2unix(1)
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