[Fedora-directory-users] Useful script to extract LDAP based user posixGroup memberships information

[Tay, Gary]

Assuming you are using posixGroup objectclass and memberUid attribute to
store your membership information, you may find my shell script useful
and handy.

It works on Solaris LDAP Client with "ldapaddent" and "ldaplist"
commands, and works against FDS, SUN DS or OpenLDAP.

#! /bin/sh
#
# get_ldap_memberUids.sh
#
# Gary Tay, 08-Sep-2005, written
#
if [ $# -le 0 ]
then
   echo ""
   echo "Usage:"
   echo "$0 [SHOW_UID_ONLY||SHOW_DN|SHOW_UIDNUMBER|SHOW__NAME"
   echo ""
   echo "Purpose: get a list of memberships for LDAP posixGroups"
   echo "Examples: "
   echo "1) $0 SHOW_UID_ONLY"
   echo "2) $0 SHOW_DN"
   echo "3) $0 SHOW_UIDNUMBER"
   echo "4) $0 SHOW_NAME"
   echo ""
   exit
fi
OPTION=$1
ldapaddent -d group | cut -d: -f1,3 >groups.txt
for i in `cat groups.txt | cut -d: -f2 | sort -n`
do
   GIDN=$i; GNAME=`grep $GIDN groups.txt | cut -d: -f1`
   echo memberUids for Group $GNAME, gidNumber=$GIDN
   ldapaddent -d passwd | sort -n -t: +3 -4 | cut -d: -f1,3,4 >users.txt
   cat users.txt | grep $GIDN | cut -d: -f1 >uids.txt
   case "$OPTION" in
      "SHOW_UID_ONLY") cat uids.txt;;
      "SHOW_DN") for j in `cat uids.txt`
         do
            ldaplist passwd $j
         done;;
      "SHOW_UIDNUMBER") for j in `cat uids.txt`
         do
            UIDN=`ldaplist -l passwd $j | grep -i 'uidNumber:' | cut -d:
-f2`
            echo $j,$UIDN
         done;;
      "SHOW_NAME") for j in `cat uids.txt`
         do
            NAME=`ldaplist -l passwd $j | grep -i 'cn:' | cut -d: -f2`
            echo $j,$NAME
         done;;
      *) echo "$1 is an invalid option."; exit 1
   esac
   echo ""
done

Hope this helps.

Gary