<caption><image_0>The image shows a man standing in a room with a desk and a computer. He is wearing a dark suit and tie and has a beard and mustache. He appears to be in his late 40s or early 50s and is holding a cup of coffee in his hand. Behind him, there is a painting hanging on the wall and a plant on the left side of the image. On the desk, there are a few books and a printer. The man looks serious and is standing in front of the computer.</caption><caption><image_1>The image shows a man standing in a room with a painting on the wall behind him. He is wearing a dark suit with a white shirt and a red tie. He has a beard and is looking directly at the camera with a serious expression on his face. On the right side of the image, there is a stack of books and a plant. The man appears to be giving a presentation or giving a speech.</caption><video><caption><image_2>The image shows a man standing in a room with a painting on the wall behind him. He is wearing a dark suit and a maroon tie with white polka dots. He has a beard and is looking off to the side with a serious expression on his face. The room appears to be a formal setting with a plant and a painting hanging on the walls.</caption><caption><image_3>The image is a slide from a presentation. It has a black background with white text. The title of the slide is "Creating Command Files". Below the title, there is a subtitle that reads "Reading Command Line Arguments Using Shell Variables". 

Below the subtitle, there are three bullet points. The first bullet point reads "Shell Programming Commands" and the second bullet point says "Writing Interactive Shell Scripts". The third bullet point states "Interacting with the Process Environment".

The slide appears to be discussing the process of creating applications with Shell Programming.</caption></video><caption><image_4>The image shows a man standing in an office setting. He is wearing a dark suit and a maroon tie. He has a beard and is looking off to the side with a serious expression on his face. Behind him, there is a desk with a computer monitor, a plant, and a painting hanging on the wall. The man appears to be in his late 40s or early 50s.</caption> hi and welcome to UNIX shell programming my name is Rayce Swartz I'm the founder and president of Berkley decision systems a consulting firm specializing in seeing UNIX training and I'll be your instructor for this video course the goal of this course is to show you how to create your own UNIX applications using a programming language available from the UNIX shell this course is designed for experienced UNIX users and would not be appropriate for someone who had never used Unix before specifically we're going to cover creating command files reading command-line arguments using shell variables shell programming commands writing interactive shell scripts interacting with the process environment in creating applications with shell programming the video training course consists of three parts the first part is the video presentation you're currently watching the second part is a book I wrote on this very topic called UNIX application programming mastering the shell when I refer to the text I'll use words like
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