Bash Script to Check if Port is Open

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When connecting to an Oracle database, it’s essential to ensure that the necessary network ports are open and accessible.

To establish a connection, it’s important to verify whether Port 1521 is open, as this default port is used for communication with the Oracle database.

Checking the port can help identify any network issues that may prevent the connection, such as firewalls or blocked ports.

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How to Run an Oracle SQL Script Using nohup on Linux

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You should run a shell with nohup on Linux to ensure long-running tasks or processes continue to execute even if your user session is terminated or a network connection is lost.

For instance, when managing an Oracle Database, you often need to execute tasks that can take a significant amount of time, such as data loading, database backups, or maintenance operations.

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