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Full Discussion: Help on capturing /etc/group info.....!!
Top Forums Shell Programming and Scripting Help on capturing /etc/group info.....!! Post 302376348 by ak835 on Tuesday 1st of December 2009 08:34:09 AM
Old 12-01-2009
MySQL Help on capturing /etc/group info.....!!
Gurus

I am trying to capture all the data in /etc/group file in a CSV ,thru a fingerprinting engine.

For hosts having ,unique group names and Ids ,following code works fine.

Trouble starts when on a host,there are multiple groups defined with same name and id.

e.g One of my hosts has 8 groups defined with [same]name "operators" and [same] id "542".

Query1:
How can i capture all these 8 groups with following script lines?

Query2:
Code:
myHost        operators  542     jackS johnM 2009-12-01

I am getting two names in the third column (userlist).'jackS' is where first group entry ends and 'johnM' is where second or next entry begins.
How can this be avoided?

Query3:
Is it possible to define multiple groups with same name and id?

Code:
Family Name:Host etcGroup

DUP:
cat /etc/group | awk -F':' '{print $1$3}'

GroupName:
A=`cat /etc/group |awk -F':' '{if ($1$3 == "@@Host etcGroup.DUP@@" ) print $1}'|sort|uniq`
echo $A

GID:
A=`cat /etc/group |awk -F':' '{if ($1$3 == "@@Host etcGroup.DUP@@" ) print $3}'|sort|uniq`
echo $A


Userlist:
A=`cat /etc/group|awk -F':' '{if ($1$3 == "@@Host etcGroup.DUP@@" ) print $4}'|sort|uniq`

B=`echo $A|wc -w`

if [ $B = 0 ]
then
echo NULL
else
count=`echo $A| nawk -F, {'print NF'}`
i=1
while [ $i -le $count ]
do
str[$i]=`echo $A| cut -d, -f${i}`
echo "${str[$i]}"
i=`expr $i + 1`
done
fi

Regards
Abhi
 

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LEARN ABOUT SUSE

group

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

NAME

       group - user group file

DESCRIPTION

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

	      group_name:password:GID:user_list

       The field descriptions are:

       group_name
	      the name of the group.

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

       GID    the numerical 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 3.25 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								    2009-10-17								  GROUP(5)
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