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How to Encrypt File in Linux

Sometimes you may need to encrypt file in Linux. Here are the steps to encrypt files & folders in Linux.

Sometimes you may need to monitor disk IO performance in Linux. Here are the steps to do so.

Sometimes you may need to get the last field in a file or command output, or remove last field in Linux. Here is how to delete last field in Linux.

It is important to secure Apache server against malicious attacks. Here is how to harden Apache Web Server on CentOS.

Sometimes you may need to display specific columns in Linux. Here are the steps to do so.

Sometimes you may need to repair MySQL databases & tables as they grow. Here is how to repair MySQL databases & tables.

Sometimes you may need to optimize MySQL tables to improve query speed and performance. Here is how to optimize MySQL tables.

Sometimes you may need to drop one or more columns in Python Pandas. Here are the steps to do it.

Sometimes you may need to copy/transfer data from one database to another in PostgreSQL. Here are the steps to do so.