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Full Discussion: Reducing text file using similar lines
Top Forums Shell Programming and Scripting Reducing text file using similar lines Post 302781807 by shekhar2010us on Sunday 17th of March 2013 10:23:27 PM
Old 03-17-2013
Reducing text file using similar lines
Hello,

I am a java programmer but want to try unix for a purpose where I need to reduce a file using its first field.. Here is the sample data:

HTML Code:
admin;2;0;[yrral];[]
admission;8;0;[timlu];[]
aman;1;0;[ev];[]
caroline;0;4;[];[luis, asethi]
cook;0;4;[];[shekhar, raj]
cook;2;0;[lew];[]
far;0;3;[];[venk]
far;1;5;[shekhar];[venk, raj]
I am explaining the dataset first. There are five fields separated by ";". First field is the main id, second and third are numerics, and 4th and 5th fields are list.

I need to combine all lines in the file where the first field matches. By Combination means, The 2nd and 3rd fields should be added and 4th anf 5th fields (lists) should be combined uniquely.

So, the desired output should be:
HTML Code:
admin;2;0;[yrral];[]
admission;8;0;[timlu];[]
aman;1;0;[ev];[]
caroline;0;4;[];[luis, asethi]
cook;2;4;[lew];[shekhar, raj]
far;1;8;[shekhar];[venk, raj]

I could have done this java but want to use the power of unix to get it done fast, since I have tonnes of such very large files.

Thanks a lot.
Shekhar

---------- Post updated at 10:23 PM ---------- Previous update was at 07:16 PM ----------

Please help.
Last edited by shekhar2010us; 03-17-2013 at 08:19 PM.. Reason: I provided the actual email-ids.
 

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LEARN ABOUT DEBIAN

services-admin

services-admin(1)					      General Commands Manual						 services-admin(1)

NAME

       services-admin - Services Administration Tool

SYNOPSIS

       services-admin [OPTION...]

DESCRIPTION

       services-admin is part of the GNOME system tools, a set of tools to easily access and manage system configuration.

       services-admin allows you to specify which services will be started during the system boot process.

OPTIONS

       services-admin accepts the standard GNOME and GTK options.

AUTHORS

       services-admin was written by Carlos Garnacho Parro <garnacho@tuxerver.net> and others.

       This manual page was written by Sven Arvidsson <sa@whiz.se>, for the Debian project (but may be used by others).

SEE ALSO

       users-admin(1), network-admin(1), time-admin(1), shares-admin(1), gtk-options(7), gnome-options(7)

       The online documentation available through the program's Help menu.

GNOME
								    2007-05-08							 services-admin(1)
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