First of all thx for your time.This is the complete .xml file:<name>B2 - London</name>
<description>Calculates risk numbers for the global SCT desk and london credit flow desk</description>
<version>1.0</version>
<revision></revision>
<revcomment></revcomment>
<bline>Fixed Income</bline>
<userid>kkinha</userid>

<!-- define your global properties here -->
<property>
<SRC_PATH>/home/B2_dev/grid/B2_RiskEngine_Grid/OvernightLondon/VB2.STABLE</SRC_PATH>
</property>

<!-- define your instance here -->
<instance name='ins_B2Londondev' user='' group='' fullname='B2%20-%20London%20(dev)' >
<!-- ins_B2Londondev = B2 - London (dev) -->
<!-- define your instance specific properties here -->
<property>
</property>
</instance>
<instance name='ins_B2Londonprod' user='' group='' fullname='B2%20-%20London%20(prod)' >
<!-- ins_B2Londonprod = B2 - London (prod) -->
<!-- define your instance specific properties here -->
<property>
</property>
</instance>
<instance name='ins_B2LondonInt' user='' group='' fullname='B2%20-%20London%20(Stage)' >
<!-- ins_B2LondonInt = B2 - London (Stage) -->
<!-- define your instance specific properties here -->
<property>
</property>
</instance>

<component name='Undefined'>
<version>1.0</version>

<os>Red Hat Enterprise Linux AS 4</os>

<os>SunOS 5.8</os>

<package>B2_GridComponentInstall</package>
</component>

<package name='B2_GridComponentInstall'>
<description>Package for deploying B2 - London</description>
<version>1.0</version>

<dir src='${SRC_PATH}' dst='/home/${user}' owner='${user}' group='${group}' type='' exclude='' perm='755' option='' />
<post>${SRC_PATH}/deployOvernightRiskEngine.bat</post>
<auto_home key='${user}' path='/local/0/home/${user}' server='localhost' />


</package>

</application>


I have to change user='' to user='C2_Dev' , group='' to group='sports' and dst='/home/${user} to dst=$DST_PATH.Where DST_PATH is shell script variable.User and group shd be changed depending on user input i.e instance name for ex. if instance name is ins_B2Londondev then user and group for that instance shd be changed.I am doin like this buts it's giving error:
sed -n \
"/${Instance}/p"\
-e '/instance name/p'\
-e "s/user=''/user='B2_dev'/" -e "s/group=''/group='games'/" B2GridTemplate.xml

Error::Can't open -e
Can't open /instance name/p
Can't open -e
Can't open s/user=''/user='B2_dev'/
Can't open -e
Can't open s/group=''/group='games'/
<instance name='ins_B2Londondev' user='' group='' fullname='B2%20-%20London%20(dev)' >
<!-- ins_B2Londondev = B2 - London (dev) -->

Please help!!!!