APT-GET INSTALL PS - SHELL-BASH

Introduction

As a programmer, you're likely familiar with the command line interface (CLI) of your operating system. The CLI allows you to interact with your computer using text commands instead of clicking buttons and navigating menus. One of the most powerful tools at your disposal in the CLI is the package manager.

In Linux, the most popular package manager is APT (Advanced Package Tool). APT is used to manage software packages on Debian-based distributions such as Ubuntu. In this tutorial, we will explain how to use APT to install the PS (process status) command, which is a powerful tool for monitoring running processes on your system.

Installing the PS Command

To install the PS command using APT, open a terminal and type the following command:

sudo apt-get install ps

This will install the PS command along with any dependencies it requires. Once the installation is complete, you can use the PS command to view information about running processes on your system.

Using the PS Command

To use the PS command, open a terminal and type the following command:

ps

This will display information about all running processes on your system. By default, the PS command displays the process ID (PID), the terminal or pseudo-terminal associated with the process (TTY), the time the process was started (TIME), and the command used to start the process (CMD).

You can use various options with the PS command to customize its output. For example, you can use the "-e" option to display information about all running processes, including those started by other users. You can use the "-f" option to display more detailed information about each process, such as its parent process ID (PPID) and the user who started the process (USER).

ps -e
ps -f

Conclusion

The PS command is a powerful tool for monitoring running processes on your system. By using APT to install the PS command, you can easily view information about all running processes on your system. Once you become familiar with the various options available with the PS command, you can use it to troubleshoot performance issues and monitor system resources.