SysAdmin

The free command in Linux is a utility that helps monitor RAM usage on a system. This guide shows how to use the free command and determine if there are enough resources for running new apps.

Jenkins is an open-source automation server used for automating code development. In this tutorial, we show you how to use environment variables in Jenkins to make automation even easier.

Bash scripting is a key skill for both system administrators and developers. Learn how to write a Bash through a practical example.

Although the builtin declare statement does not need to be used to explicitly declare a variable in Bash, the command is often used for more advanced variable management tasks. This tutorial shows how to use the declare command to set and display the variables and their attributes.

The pwd command outputs your current working directory in Linux. This tutorial shows how to use the command and showcases different examples of using the command.

A Bash shell script can run into problems during its execution, resulting in an error signal that interrupts the script unexpectedly. This tutorial will show you how to use the trap command to ensure your script always exits in a predictable manner.

Learn how to use the nohup command to continue running commands and processes in Linux even after the shell closes.

Jenkins offers a way for developers to automate building, testing, and deploying their applications. This tutorial show you how to restart Jenkins manually.

The bash case statement simplifies complex conditional statements and tests input strings against specified patterns to execute a command when the condition is met. This tutorial shows how to use the bash case statement.

This article shows how to use the for loop in bash scripts through various hands-on examples.