Direct upgrade and Migrate DB from 11.2.0.4 to 19c PDB

 /opt/oracle/product/19c/dbhome_1/jdk/bin/java -jar /opt/oracle/product/19c/dbhome_1/rdbms/admin/autoupgrade.jar -create_sample_file config

cat /home/oracle/autoupg/11204upgrade.cfg

global.autoupg_log_dir=/opt/oracle/cfgtoollogs/autoupgrade

upg1.sid=orcl1

upg1.dbname=orcl1

upg1.start_time=NOW

upg1.source_home=/opt/oracle/product/11g/dbhome_1

upg1.log_dir=/home/oracle/autoupg

upg1.target_home=/opt/oracle/product/19c/dbhome_1

upg1.upgrade_node=oracle11g

upg1.target_version=19.1.0

upg1.run_utlrp=yes

upg1.timezone_upg=yes

upg1.target_cdb=cdb1

/opt/oracle/product/19c/dbhome_1/jdk/bin/java -jar /opt/oracle/product/19c/dbhome_1/rdbms/admin/autoupgrade.jar -config /home/oracle/autoupg/11204upgrade.cfg -mode ANALYZE

/opt/oracle/product/19c/dbhome_1/jdk/bin/java -jar /opt/oracle/product/19c/dbhome_1/rdbms/admin/autoupgrade.jar -config /home/oracle/autoupg/11204upgrade.cfg -mode DEPLOY