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skull-squadron/gist:941862

Created April 26, 2011 06:13
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Find the next free GID / UID on Mac OS X 10.6 snow leopard.
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gistfile1.sh
NEXTUID=$(dscl . -list /Users UniqueID | awk 'BEGIN{i=0}{if($2>i)i=$2}END{print i+1}')
NEXTGID=$(dscl . -list /Groups PrimaryGroupID | awk 'BEGIN{i=0}{if($2>i)i=$2}END{print i+1}')
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Add a new group:

sudo dscl . -create /Groups/$GROUPNAME gid $NEXTGID

Credit: http://serverfault.com/questions/131942/how-do-i-add-a-group-in-mac-os-x-10-6

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