Introduction In this tutorial, we learn how to install PostgreSQL 10 on Ubuntu 20.04 (Focal Fossa). PostgreSQL, or usually called Postgres, is an open-source object-relational database management system (ORDBMS) with an emphasis on extensibility and standards compliance. PostgreSQL is ACID-compliant and transactional. It is developed by PostgreSQL Global Development Group (PGDG) that consists of many … Read more
factor command in linux print the prime factors of each specified integer number. If none are specified on the command line, factor command will read them from standard input.
If you’re using rpm based Linux distribution, most likely you’re familiar with yum whatprovides command. Using this command we can search which packages provides a specific file. In Ubuntu or Debian-based Linux distribution we can also do similar action using dpkg and apt-file. Searching File Using dpkg -S To get which packages provides a specific … Read more
Introduction whoami is a command which the user name associated with the current effective user ID. This command similar to running id command with -un option. whoami Syntax Getting help for whoami To get help for whoami we can run the command below. We can also read manpage and infopage for whoami by running the … Read more
What is AWS Service Prefix AWS Service Prefix is a prefix or namespace used by AWS service. Service Prefix groups IAM related action for specific service. For example, Amazon S3 has service prefix S3. Under this prefix, there is action like s3:GetObject. We can use service prefix on IAM policy or another AWS Organization policy … Read more