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Full Discussion: Sort cmd to get GROUP BY?
Top Forums UNIX for Dummies Questions & Answers Sort cmd to get GROUP BY? Post 302247512 by joeyg on Wednesday 15th of October 2008 08:19:48 PM
Old 10-15-2008
Hammer & Screwdriver A couple of things to think about
Sort is normally alphabetic - thus a field with a 12 will be before a 2 or 3. You will need the 'n' option on the field to make numeric.

To help determine where your script has gone astray, I would suggest you verify that your logic is fine for just one key. Then, add a second key; and so on until you discover the problem.

And from more investigation, I do not see any records improperly sorted.

Code:
> sort file200 -k3n -k4.1,4.3 -k9.1,9.10 -k29n -k8.1,8.2 -k28.1,28.10 | cut -d":" -f2-4,8-9,28-29

{data records here --- removed once issue solved --- not part of issue}

>

Last edited by joeyg; 10-16-2008 at 09:39 AM.. Reason: Added sample output from a test
 

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LEARN ABOUT CENTOS

group

GROUP(5)						     Linux Programmer's Manual							  GROUP(5)

NAME

       group - user group file

DESCRIPTION

       The /etc/group file is a text file that defines the groups on the system.  There is one entry per line, with the following format:

	      group_name:password:GID:user_list

       The fields are as follows:

       group_name  the name of the group.

       password    the (encrypted) group password.  If this field is empty, no password is needed.

       GID	   the numeric group ID.

       user_list   a list of the usernames that are members of this group, separated by commas.

FILES

       /etc/group

BUGS

       As the 4.2BSD initgroups(3) man page says: No-one seems to keep /etc/group up-to-date.

SEE ALSO

       login(1), newgrp(1), getgrent(3), getgrnam(3), passwd(5)

COLOPHON

       This  page is part of release 3.53 of the Linux man-pages project.  A description of the project, and information about reporting bugs, can
       be found at http://www.kernel.org/doc/man-pages/.

Linux								    2010-10-21								  GROUP(5)
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