Key To Command

The 50th Signal Battalion was activated July 1, 1940, at Fort Sheridan, Illinois, not long before the United States was drawn into World War II. In September of 1941, a portion of the Battalion was sent to Iceland, followed by the rest in January of 1942 in order to build a communications infrastructure for Iceland Base Command on the island. Upon completion of that assignment, the Battalion was sent to England to prepare for the invasion of continental Europe. On D-Day, June 6, 1944, the Battalion landed on Utah Beach in support of VII Corp and its assigned units, which continued until the end of the war in Europe. Much of the information and many of the photographs contained in this book came from meeting or conversing over the phone with World War II veterans of the 50th Signal Battalion or the surviving members of their families.

Demonstrates how to become adjusted to the Macintosh operating system and how to transfer data from a Windows system to a Macintosh, discussing topics such as moving files and Macintosh equivalents to Windows-only programs.

How to make the mail program start after pressing ALT? Most administrative work, both for the working station and the server, is done in the shell. Adjusting it to your needs, creating shortcuts on the level of command names as well as shortcuts makes this work quicker. This micro-course describes how to add commands contained in a file to the current session, how to manage command aliases, and how to join key shortcuts with a command or the shell command line editor action.

This book provides authoritative information on the theory behind the Macintosh 'look and feel' and the practice of using individual interface components. It includes many examples of good design and explains why one implementation is superior to another. Anyone designing or creating a product for Macintosh computers needs to understand the information in this book.

You've experienced the shiny, point-and-click surface of your Linux computer--now dive below and explore its depths with the power of the command line. The Linux Command Line takes you from your very first terminal keystrokes to writing full programs in Bash, the most popular Linux shell (or command line). Along the way you'll learn the timeless skills handed down by generations of experienced, mouse-shunning gurus: file navigation, environment configuration, command chaining, pattern matching with regular expressions, and more. In addition to that practical knowledge, author William Shotts reveals the philosophy behind these tools and the rich heritage that your desktop Linux machine has inherited from Unix supercomputers of yore. As you make your way through the book's short, easily-digestible chapters, you'll learn how to: • Create and delete files, directories, and symlinks • Administer your system, including networking, package installation, and process management • Use standard input and output, redirection, and pipelines • Edit files with Vi, the world's most popular text editor • Write shell scripts to automate common or boring tasks • Slice and dice text files with cut, paste, grep, patch, and sed Once you overcome your initial "shell shock," you'll find that the command line is a natural and expressive way to communicate with your computer. Just don't be surprised if your mouse starts to gather dust.

This is Linux for those of us who don’t mind typing. All Linux users and administrators tend to like the flexibility and speed of Linux administration from the command line in byte–sized chunks, instead of fairly standard graphical user interfaces. Beginning the Linux Command Line is verified against all of the most important Linux distributions, and follows a task–oriented approach which is distribution agnostic. Now this Second Edition of Beginning the Linux Command Line updates to the very latest versions of the Linux Operating System, including the new Btrfs file system and its management, and systemd boot procedure and firewall management with firewalld! Updated to the latest versions of Linux Work with files and directories, including Btrfs! Administer users and security, and deploy firewalld Understand how Linux is organized, to think Linux!

For many researchers, Python is a first-class tool mainly because of its libraries for storing, manipulating, and gaining insight from data. Several resources exist for individual pieces of this data science stack, but only with the Python Data Science Handbook do you get them all—IPython, NumPy, Pandas, Matplotlib, Scikit-Learn, and other related tools. Working scientists and data crunchers familiar with reading and writing Python code will find this comprehensive desk reference ideal for tackling day-to-day issues: manipulating, transforming, and cleaning data; visualizing different types of data; and using data to build statistical or machine learning models. Quite simply, this is the must-have reference for scientific computing in Python. With this handbook, you’ll learn how to use: IPython and Jupyter: provide computational environments for data scientists using Python NumPy: includes the ndarray for efficient storage and manipulation of dense data arrays in Python Pandas: features the DataFrame for efficient storage and manipulation of labeled/columnar data in Python Matplotlib: includes capabilities for a flexible range of data visualizations in Python Scikit-Learn: for efficient and clean Python implementations of the most important and established machine learning algorithms

For power users who want to modify Tiger, the new release of Mac OS X, this book takes them deep inside Mac OS X's core, revealing the inner workings of the system.

The Linux Command Line Beginner's Guide gives users new to Linux an introduction to the command line environment. In the Guide, you'll learn how to: -Copy, move, and delete files and directories. -Create, delete, and manage users. -Create, delete, and manage groups. -Use virtual terminals. -Use the bash shell. -Safely use the root account with su and sudo. -Change permissions and ownership of files and directories. -Create and edit text files from the command line, without using a graphical editor. -Diagnose network connectivity problems. -And many other topics.