Updated sed command to resolve charset not updating issue in 23c free (#2675)

* Updated sed command to resolve charset not updating issue  in 23c free

* Updated sed in 21.3 xe to resolve charset issue

Author: aditya059

OracleDatabase/SingleInstance/dockerfiles/21.3.0/createDB.sh

@@ -151,7 +151,7 @@ if [ "${ORACLE_SID}" = "XE" ]; then
   export ORACLE_PWD=${ORACLE_PWD:-"$(openssl rand -hex 8)"}
 
   # Set character set
-  su -c "sed -i -e \"s|###ORACLE_CHARACTERSET###|$ORACLE_CHARACTERSET|g\" /etc/sysconfig/\"$CONF_FILE\""
+  su -c "sed -i -e \"s|^CHARSET=.*$|CHARSET=$ORACLE_CHARACTERSET|g\" /etc/sysconfig/\"$CONF_FILE\""
 
   # Creating Database
   su -c "/etc/init.d/oracle-xe-21c configure << EOF

OracleDatabase/SingleInstance/dockerfiles/21.3.0/oracle-xe-21c.conf

@@ -8,7 +8,7 @@ LISTENER_PORT=1521
 EM_EXPRESS_PORT=5500
 
 # Character set of the database
-CHARSET=###ORACLE_CHARACTERSET###
+CHARSET=AL32UTF8
 
 # Database file directory
 # If not specified, database files are stored under Oracle base/oradata

OracleDatabase/SingleInstance/dockerfiles/23.2.0/createDB.sh

@@ -150,7 +150,7 @@ if [ "${ORACLE_SID}" = "FREE" ]; then
   export ORACLE_PWD=${ORACLE_PWD:-"$(openssl rand -hex 8)"}
 
   # Set character set
-  su -c "sed -i -e \"s|###ORACLE_CHARACTERSET###|$ORACLE_CHARACTERSET|g\" /etc/sysconfig/\"$CONF_FILE\""
+  su -c "sed -i -e \"s|^CHARSET=.*$|CHARSET=$ORACLE_CHARACTERSET|g\" /etc/sysconfig/\"$CONF_FILE\""
 
   # Creating Database
   su -c "/etc/init.d/oracle-free-23c configure << EOF

OracleDatabase/SingleInstance/dockerfiles/23.2.0/oracle-free-23c.conf

@@ -5,7 +5,7 @@
 LISTENER_PORT=1521
 
 # Character set of the database
-CHARSET=###ORACLE_CHARACTERSET###
+CHARSET=AL32UTF8
 
 # Database file directory
 # If not specified, database files are stored under Oracle base/oradata