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1 #!/bin/bash
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2 # Copyright (c) 2000,2004 Matthias S. Benkmann <article AT winterdrache DOT de>
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3 # You may do everything with this code except misrepresent its origin.
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4 # PROVIDED `AS IS' WITH ABSOLUTELY NO WARRANTY OF ANY KIND!
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5
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6 #
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7 # This is a primitive script to serve as useradd until the real useradd
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8 # has been installed. It has little error checking, so don't pass it anything
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9 # stupid or it'll mess up your /etc/passwd and/or /etc/group file.
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10 #
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11
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12 if [ $# -ne 13 -o z$1 != z-c -o z$3 != z-d -o z$5 != z-g -o z$7 != z-G -o z$9 != z-s -o z${11} != z-u ]; then
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13 echo 1>&2 USAGE: useradd -c description -d home -g maingroup -G addgroup -s shell -u uid login
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14 exit 1
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15 fi
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16
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17 #test if user already exists
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18 grep "^${13}:.*" /etc/passwd
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19 if [ $? -eq 0 ]; then
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20 echo 1>&2 $0: User does already exist
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21 exit 1
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22 fi
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23
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24 g=`grep ^${6}:.\* /etc/group | cut -d : -f 3 -`
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25 if [ z${g} = z ]; then
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26 echo 1>&2 $0: Group ${6} does not exist!
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27 exit 1
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28 fi
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29
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30 grep ^${8}:.\* /etc/group >/dev/null || \
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31 {
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32 echo 1>&2 $0: Group ${8} does not exist!
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33 exit 1
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34 }
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35
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36
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37 cp /etc/passwd /tmp/passwd123456
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38 echo "${13}:x:${12}:$g:$2:$4:${10}" \
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39 | sort -t : -k3,3n -m /tmp/passwd123456 - > /etc/passwd
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40
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41
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42 cp /etc/group /tmp/group123456
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43 sed -e 's/^\('"${8}"':[^:]*:[0-9]*:..*\)$/\1,'"${13}"'/' \
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44 -e 's/^\('"${8}"':[^:]*:[0-9]*\):$/\1:'"${13}"'/' \
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45 /tmp/group123456 >/etc/group
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