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1. [centos@ip-172-30-3-146 instantclient]$ /opt/datical/DaticalDB/instantclient/sqlplus -v

   1. You should see eg. SQL*Plus: Release 12.1.0.2.0 Production

2. If you receive the below errors do the following:

   1. [centos@ip-172-30-3-146 instantclient]$ /opt/datical/DaticalDB/instantclient/sqlplus -v
      /opt/datical/DaticalDB/instantclient/sqlplus: error while loading shared libraries: libsqlplus.so: cannot open shared object file: No such file or directory

      1. Set the following in the .bashrc
         export ORACLE_HOME=/opt/datical/DaticalDB/instantclient
         export LD_LIBRARY_PATH=/opt/datical/DaticalDB/instantclient
         export PATH=$PATH:$ORACLE_HOME/bin

      2. Reference: https://askubuntu.com/questions/420395/sqlplus-error-while-loading-shared-libraries-libsqlplus-so-cannot-open-shared/420417

   2. [centos@ip-172-30-3-146 instantclient]$ /opt/datical/DaticalDB/instantclient/sqlplus -v
      /opt/datical/DaticalDB/instantclient/sqlplus: error while loading shared libraries: libaio.so.1: cannot open shared object file: No such file or directory

      1. Run: sudo yum install libaio

         1. or: sudo apt-get install libaio1 libaio-dev

      2. Reference: https://stackoverflow.com/questions/10619298/libaio-so-1-cannot-open-shared-object-file

   3. [centos@ip-172-30-3-146 instantclient]$ /opt/datical/DaticalDB/instantclient/sqlplus -v
      /opt/datical/DaticalDB/instantclient/sqlplus: error while loading shared libraries: libnsl.so.1: cannot open shared object file: No such file or directory

      1. Run: yum install libnsl*

         1. or: sudo apt-get install libnsl

      2. Reference: https://stackoverflow.com/questions/27717312/sqlplus-error-while-loading-shared-libraries-libsqlplus-so-cannot-open-shared

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