ORA-12162 TNS :net service name is incorrectly specified error.

we need to add the following Oracle environments to the Bash Profile file.

Go to bash profile.

PATH=$PATH:$HOME/.local/bin:$HOME/bin

export ORACLE_BASE=/u01/app/oracle

export ORACLE_HOME=/u01/app/oracle/product/19.3.0/db_home

export ORACLE_SID=PRIM

export LD_LIBRARY_PATH=\$ORACLE_HOME/lib:/lib:/usr/lib

export CLASSPATH=\$ORACLE_HOME/jlib:\$ORACLE_HOME/rdbms/jlib

PATH=$PATH:$HOME/.local/bin:$ORACLE_HOME/bin

export PATH