UESPWiki:Scripts/create uesp users

#!/bin/sh

GROUPADD='/usr/sbin/groupadd'
USERADD='/usr/sbin/useradd'
USERMOD='/usr/sbin/usermod'

create_group()
# $1 = groupname
# $2 = group id
{

        if [ -z $1 ] || [ -z $2 ]
        then
                echo "     Error: Two parameters required to create_group(group, id)!"
                return 1
        fi

        GROUPID=`grep ^$1: /etc/group | awk -F: '{print $3 }'`
        RESULT=$?

        if [ $RESULT != 0 ] || [ -z $GROUPID ]
        then
                RESULT=0
        elif [ $GROUPID == $2 ]
        then
                echo "     OK: Group $1 ($2) already exists...skipping."
                return 0
        elif [ $RESULT == 0 ]
        then
                echo "     Error: Group $1 ($2) already exists wih a different ID ($GROUPID)!"
                return 1
        fi

        $GROUPADD -g $2 $1 2> /dev/null
        RESULT=$?

        if [ $RESULT == 4 ]
        then
                echo "     Error: Group $1 ($2) already exists!"
                return 1
        elif [ $RESULT != 0 ]
        then
                echo "     Error: Unknown error '$RESULT' attempting to add group $1 ($2)!"
                return 1
        else
                echo "     OK: Created group $1 ($2)."
        fi

        return 0
}

create_user()
# $1 = user/group name
# $2 = user/group id
# $3 = (optional) group name
{

        if [ -z $1 ] || [ -z $2 ]
        then
                echo "     Error: Two parameters required to create_user(user, id)!"
                return 1
        fi

        if [ -z $3 ]
        then
                GROUP=$1
                create_group $1 $2
                RESULT=$?

        else
                GROUP=$3
        fi

        USERID=`id -u $1 2> /dev/null`
        RESULT=$?

        if [ $RESULT != 0 ] || [ -z $USERID ]
        then
                RESULT=0
        elif [ $USERID == $2 ]
        then
                echo "     OK: User $1 ($2) already exists...skipping."
                return 0
        else
                echo "     Error: User $1 ($2) already exists with a different ID ($USERID)!"
                return 1
        fi

        $USERADD $1 -g $GROUP -u $2 2> /dev/null
        RESULT=$?

        if [ $RESULT == 4 ]
        then
                echo "     Error: User ID $2 is already in use. Cannot create user $1!"
                return 1
        elif [ $RESULT == 6 ]
        then
                echo "     Error: Group $GROUP doesn't exist for user $1 ($2)!"
                return 1
        elif [ $RESULT == 9 ]
        then
                echo "     Error: User $1 already exists!"
                return 1
        elif [ $RESULT != 0 ]
        then
                echo "     Error: Unknown error '$RESULT' attempting to add user $1 ($2)!"
                return 1
        else
                echo "     OK: Created user $1 ($2)."
        fi

        return 0
}

add_user_to_group()
# $1 = user
# $2 = group
{

        if [ -z $1 ] || [ -z $2 ]
        then
                echo "     Error: Two parameters required to add_user_to_group()!"
                return 1
        fi

        $USERMOD -G $2 $1
        RESULT=$?

        if [ $RESULT == 6 ]
        then
                echo "     Error: The user '$1' or the group '$2' do not exist!"
                return 1
        elif [ $RESULT != 0 ]
        then
                echo "     Error: Unknown error '$RESULT' returned from usermod!"
                return 1
        else
                echo "     OK: Added the group '$2' to the user '$1'."
        fi

        return 0
}

create_group "uespadmin" 522
create_group "qmail"     601
create_group "nofiles"   602
create_group "vchkpw"    603

create_user "techiweb"    500
create_user "apache"      502
create_user "mysql"       503
create_user "backup"      504
create_user "uesp"        505
create_user "squid"       506
create_user "eqwiki"      507
create_user "dave"        519
create_user "sshbackup"   520
create_user "nephele"     523
create_user "rpeh"        524
create_user "uespinfo"    526
create_user "blog"        527
create_user "uespkey"     530
create_user "dungeonhack" 531
create_user "ocp"         532
create_user "svn"         533
create_user "zabbix"      535

create_user "qmail"     601
create_user "alias"     602  "nofiles"
create_user "qmaild"    603  "qmail"
create_user "qmaill"    604  "qmail"
create_user "qmailp"    605  "qmail"
create_user "qmailg"    606  "qmail"
create_user "qmailr"    607  "qmail"
create_user "qmails"    608  "qmail"
create_user "vpopmail"  609  "vchkpw"

add_user_to_group "dave" "uespadmin"
add_user_to_group "dave" "uesp"
add_user_to_group "dave" "apache"
add_user_to_group "dave" "mysql"