To know about the R12 oracle apps form,apache,oc4j,java,perl versions

create a shell file with the following script and execute as apps user.
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#
+===========================================================================+
# | FILENAME
# | Instancedetails_R12.sh
# |
# | DESCRIPTION
# |   This script can be used to collect Apache, Jserv, Forms, Jinitiator and 
# |   Perl version in E-Business suite R12
# |
# | PLATFORM
# | Unix Generic, Linux, HP-UX,IBM AIX, Sunsolaris 
# |
# | NOTES
# |   Before running the script ensure that you have sourced the environment 
# |   by running APPS<SID>_host.env file from $APPL_TOP. 
# |
# | HISTORY
# |   Version 1.0
# +===========================================================================+
#
(
echo "Script Started "
date
## The script shows output on screen and creates file named hostname_date.txt file in current ## directory
## Collect the Apache version
echo "*****Apache Version*****"
$IAS_ORACLE_HOME/Apache/Apache/bin/httpd -v
echo " "
## Collect perl version
echo "*****perl version******"
$IAS_ORACLE_HOME/perl/bin/perl -v|grep built
echo " "
## Collect Java version
echo "******Java Version******"
sh -c "`awk -F= '$1 ~ /^JSERVJAVA.*$/ {print $2}' $ADMIN_SCRIPTS_HOME/java.sh` -version;"
echo " "
## Collect client JRE version
echo "*****Client JRE version*****"
cat $FORMS_WEB_CONFIG_FILE|grep sun_plugin_version| cut -c 1-35
echo " "
## Collect Forms version
echo "*****Forms Version*****"
$ORACLE_HOME/bin/frmcmp_batch|grep Forms| grep Version
echo " "
## Collect PL/SQL Version
echo "*****PL/SQL Version****"
$ORACLE_HOME/bin/frmcmp_batch|grep PL/SQL|grep Version
echo " "
## Collect Forms communication mode
echo "****Forms Communication Mode****"
cat $FORMS_WEB_CONFIG_FILE|grep serverURL=
echo "If the serverURL parameter has no value then Forms is implemented in socket mode else it is servlet"
echo " "
echo "Script Completed Successfully and it has generated the file  zz`hostname`_`date +%m%d%y.%H%M`.txt file in current directory"
echo "Script completed "
date
) 2>&1 | tee zz`hostname`_`date +%m%d%y.%H%M`.txt
###
### END OF SCRIPT
###

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Run the above script to know the details of the oracle apps R12 instance details