make the name of file and fetch few things from log file

Shell Programming and Scripting
1

Hello All,
I am working on a script where I need to fetch the value from a log file and log file creates with different name but few thing are common

DEV_INFOMGT161_MULTI_PTC_BLD01.Stage_All_to_stp2perf1.042312114644.log

STP_12_02_01_00_RC01.Stage_stp-domain_to_stp2perf2.042312041739.log

STPPRODUCTS_01_01_PRE_BLD06.Stage_tag_to_stp2qa1.041912201909.log

First I need to make the name of file for example
${Source Tag}.Stage[Please help me to make the name of the file above]
and then I need to fetch the few things like from the below format

Build Complete. Values are:
    Today's Date:..............04/23/12
    Build Type:................Stage
    Build Context:.............intg
    Source Tag:................DEV_INFOMGT161_MULTI_PTC_BLD01
    Destination Tag:...........NotApplicable
    Destination Environment:...stp2perf1
    STP Application Name:......All
    Start Time:................11:46:44 GMT
    End Time:..................11:53:43 GMT
    Elapsed Time:..............00:06:59
    Soa Version:...............08_07_00
    Override Properties File:.."/projects/stp/home/stpbuild/override.files/DEV_INFOMGT161_MULTI_PTC"
    Java Version:..............jdk1.6.0_13
    Tomcat Version:............/opt/apache-tomcat-7.0.19
    Result:....................SUCCESSFUL
    Log File:
      DEV_INFOMGT161_MULTI_PTC_BLD01.Stage_All_to_stp2perf1.042312114644.log

These below three thing which I want to fetch from the above log file
Build Type
Source Tag
Result

Thanks

2 
$ cat sample3.txt
Build Complete. Values are:
    Today's Date:..............04/23/12
    Build Type:................Stage
    Build Context:.............intg
    Source Tag:................DEV_INFOMGT161_MULTI_PTC_BLD01
    Destination Tag:...........NotApplicable
    Destination Environment:...stp2perf1
    STP Application Name:......All
    Start Time:................11:46:44 GMT
    End Time:..................11:53:43 GMT
    Elapsed Time:..............00:06:59
    Soa Version:...............08_07_00
    Override Properties File:.."/projects/stp/home/stpbuild/override.files/DEV_INFOMGT161_MULTI_PTC"
    Java Version:..............jdk1.6.0_13
    Tomcat Version:............/opt/apache-tomcat-7.0.19
    Result:....................SUCCESSFUL
    Log File:
      DEV_INFOMGT161_MULTI_PTC_BLD01.Stage_All_to_stp2perf1.042312114644.log

$ grep "Build Type" <sample3.txt | awk -F"." '{print $NF}'
Stage
3

I have on emore question here how could I make the format of below files like
Few thing I already know that is first parameter 1 parammeter.Stage(always hardcoded)...............Destination Environment(3rd parameter)

but how could I make it with something like wild card ie. between Stage and Destination Environment

 
DEV_INFOMGT161_MULTI_PTC_BLD01.Stage_All_to_stp2perf1.042312114644.log

STP_12_02_01_00_RC01.Stage_stp-domain_to_stp2perf2.042312041739.log

STPPRODUCTS_01_01_PRE_BLD06.Stage_tag_to_stp2qa1.041912201909.log