Install PuTTY and Xming

	[root@tesdb ~]#  yum install -y oracle-database-preinstall-19c
	Loaded plugins: langpacks, ulninfo
	Resolving Dependencies

	--> Running transaction check
	---> Package oracle-database-preinstall-19c.x86_64 0
		:1.0-3.el7 will be installed
	--> Processing Dependency: ksh for package: oracle-database
		-preinstall-19c-1.0-3.el7.x86_64
	--> Processing Dependency: libaio-devel for package: oracle
		-database-preinstall-19c-1.0-3.el7.x86_64
	--> Running transaction check

	---> Package ksh.x86_64 0:20120801-144.0.1.el7_9 will be installed
	---> Package libaio-devel.x86_64 0:0.3.109-13.el7 will be installed
	--> Finished Dependency Resolution

	Dependencies Resolved
	==============================================================================
	 Package		Arch	Version	Repository	Size
	==============================================================================
	Installing:
	 oracle-database	x86_64	1.0-3.el7		ol7_latest	27 k
	 -preinstall-19c

	Installing for dependencies:
	 ksh			x86_64	20120801-144.0.1.el7_9	ol7_latest	882 k
	 lilaio-devel		x86_64	0.3.109-13.el7		ol7_latest	12 k

	Transaction Summary
	==============================================================================
	Install  1 Package (+2 Dependent packages)

	[root@tesdb ~]#  yum update -y

	/sbin/sysctl -p

	Set the password for the "oracle" user.
	passwd oracle

	Create the directories in which the Oracle software will be installed.
	mkdir -p /u01/app/oracle/product/19.0.0/dbhome_1
	mkdir -p /u02/oradata

	chown -R oracle:oinstall /u01 /u02
	chmod -R 775 /u01 /u02

	su - oracle
	export TMP=/tmp
	export TMPDIR=$TMP

	export ORACLE_UNQNAME=dev
	export ORACLE_BASE=/u01/app/oracle
	export ORACLE_HOME=$ORACLE_BASE/product/19.0.0/dbhome_1
	export ORA_INVENTORY=/u01/app/oraInventory
	export ORACLE_SID=dev
	export DATA_DIR=/u02/oradata

	export PATH=/usr/sbin:/usr/local/bin:$PATH
	export PATH=$ORACLE_HOME/bin:$PATH

	export LD_LIBRARY_PATH=$ORACLE_HOME/lib:/lib:/usr/lib
	export CLASSPATH=$ORACLE_HOME/jlib:$ORACLE_HOME/rdbms/jlib

[oracle@gokul ]ll