Linux – Methods to repeat a command every X seconds

A Linux system administrator needs to know, sometimes for specific type of tasks, how to run or repeat a Linux command every X seconds. You may need to run a command repeatedly in a certain period of time. Using simple cron commands, for example, such tasks can be easily completed. But cron is not the only tool that we can use to do that. Read More …

Getting bash: /usr/local/bin/npm: No such file or directory on Linux [New Question]

A quick question, answered on Heelpbook, about “Getting bash: /usr/local/bin/npm: No such file or directory on Linux”, that prevents the usage of npm utility, even if completely reinstalled, in some cases. Read More …

Segmentation Fault using yarn (Linux) [New Question]

A quick question, answered on Heelpbook, about “Segmentation Fault using yarn (Linux)”, that prevents the usage of yarn utility, that is used to use and share code with other developers from around the world. Read More …

Rename an existing PostgreSQL Database

Renaming a PostgreSQL is one of the activities that could be necessary during a normal database lifecycle, sometimes due to testing or development related activities linked to a pre-existing database. Let’s see which PL/pgSQL statement we can use to rename a database. Read More …