create a dummy account for Mac OSX

dummy.sh

  cp $HOME/.bash_profile $HOME/bash_profile.$(date +%Y%m%d.%s).backup
    grep -q DUMMY_ACCOUNT= $HOME/.bash_profile || echo "export DUMMY_ACCOUNT=${DUMMY_ACCOUNT}" >> $HOME/.bash_profile
    
    last_uid=$(dscl .  -list /Users UniqueID | awk '$2 > 500 { print $2 }' | sort -ug | tail -n1) 
    unique_uid=`expr $last_uid + 1`
    echo "Creating user $DUMMY_ACCOUNT with UID $unique_uid"
    
    dscl . -create /Users/$DUMMY_ACCOUNT
    dscl . -create /Users/$DUMMY_ACCOUNT UserShell /bin/bash
    dscl . -create /Users/$DUMMY_ACCOUNT RealName 'dummy account'
    dscl . -create /Users/$DUMMY_ACCOUNT UniqueID $unique_uid
    dscl . -create /Users/$DUMMY_ACCOUNT PrimaryGroupID 1000
    dscl . -create /Users/$DUMMY_ACCOUNT NFSHomeDirectory /Users/$DUMMY_ACCOUNT
    dscl . -passwd /Users/$DUMMY_ACCOUNT 'dummy'
    dscl . append /Groups/com.apple.access_ssh user $DUMMY_ACCOUNT
    dscl . append /Groups/com.apple.access_ssh groupmembers `dscl . read /Users/$DUMMY_ACCOUNT GeneratedUID | cut -d " " -f 2`
    
    echo "Creating local ucp directory" 
    mkdir -pv $HOME/.ucp
    chown -Rv $USER $HOME/.ucp
    echo "Setting up $DUMMY_ACCOUNT directories"
    mkdir -pv /Users/$DUMMY_ACCOUNT/.ssh 
    mkdir -pv /Users/$DUMMY_ACCOUNT/.ucp
    cat $HOME/.ssh/id_rsa.pub >> /Users/$DUMMY_ACCOUNT/.ssh/authorized_keys
    chown -Rv $DUMMY_ACCOUNT /Users/$DUMMY_ACCOUNT

    echo "Creating softlink to ucp in dummy"

    if [ ! -h /Users/${DUMMY_ACCOUNT}/ucp ]; then
	ln -s "$(pwd)/src/ucp" /Users/${DUMMY_ACCOUNT}/ucp
    fi
    
    echo "All done"
    echo "You will want to set DYLD_LIBRARY_PATH in your .bash_profile to reference boost libraries, udt libraries and cryptopp libraries"
    echo ""
    echo "Password for $DUMMY_ACCOUNT is dummy"