User, group ID iteration is broken

[ro-ket]

When a user or group already exists, or the UID or GID is already in use, the script forgets the gid/uid range requested in command line argument and begins iterating from the last encountered.

Line 209:

gid=$(getGidFromGroup $group $ZONE)
Needs to be assigned to a new variable, eg matchedgid.

Line 229:

uid=$(getUidFromUser $user $ZONE)
Needs to be assigned to a new variable, eg matcheduid

Example
command: bash isilon_create_users.sh --dist hwx --startgid 2000 --startuid 12000
stdout:

ERRORS FOUND:
*  ERROR:  GID 2000 already in use by group uu in zone System
*  ERROR:  GID 2008 already in use by group vv in zone System
*  ERROR:  User hdfs already exists at uid 2013 in zone System
*  ERROR:  UID 2014 already in use by user nn in zone System
*  ERROR:  UID 2015 already in use by user nnn in zone System
*  ERROR:  UID 2016 already in use by user nnnn in zone System
*  ERROR:  UID 2017 already in use by user nnnnn in zone System
*  ERROR:  UID 2020 already in use by user aa in zone System
*  ERROR:  UID 2021 already in use by user aaa in zone System
*  ERROR:  UID 2024 already in use by user aaaa in zone System
*  ERROR:  UID 2027 already in use by user aaaaa in zone System
*  ERROR:  UID 2033 already in use by user mm in zone System
*  ERROR:  User kms already exists at uid 1009 in zone System
*  ERROR:  UID 1010 already in use by user mmm in zone System
*  ERROR:  Could not add user mapred to hadoop group in zone System
*  ERROR:  Could not add user yarn to hadoop group in zone System
*  ERROR:  Could not add user hbase to hadoop group in zone System
*  ERROR:  Could not add user storm to hadoop group in zone System

[bonibruno]

This script is only intended for new installations. If hadoop users exists, then it's not a new installation and this script should not be used.