http://woodruffscientific.com/wiki/ 2026-10-24T02:34:30+00:00 http://woodruffscientific.com/wiki/ http://woodruffscientific.com/wiki/lib/tpl/dokuwiki/images/favicon.ico text/html 2022-07-21T06:59:32+00:00 Anonymous (anonymous@undisclosed.example.com) http://woodruffscientific.com/wiki/doku.php?id=wiki:cli:creating_things&rev=1658408372&do=diff Objectives * Create a directory hierarchy that matches a given diagram. * Create files in that hierarchy using an editor or by copying and renaming existing files. * Display the contents of a directory using the command line. * Delete specified files and/or directories. text/html 2022-07-21T06:59:32+00:00 Anonymous (anonymous@undisclosed.example.com) http://woodruffscientific.com/wiki/doku.php?id=wiki:cli:files_and_directories&rev=1658408372&do=diff Navigating Files & Directories The part of the operating system responsible for managing files and directories is called the file system. It organizes our data into files, which hold information, and directories (also called “folders”), which hold files or other directories. text/html 2022-07-21T06:59:32+00:00 Anonymous (anonymous@undisclosed.example.com) http://woodruffscientific.com/wiki/doku.php?id=wiki:cli:pipes_and_filters&rev=1658408372&do=diff Objectives * Redirect a command's output to a file. * Process a file instead of keyboard input using redirection. * Construct command pipelines with two or more stages. * Explain what usually happens if a program or pipeline isn't given any input to process. text/html 2022-07-21T06:59:32+00:00 Anonymous (anonymous@undisclosed.example.com) http://woodruffscientific.com/wiki/doku.php?id=wiki:cli:scripts&rev=1658408372&do=diff Objectives * Write a shell script that runs a command or series of commands for a fixed set of files. * Run a shell script from the command line. * Write a shell script that operates on a set of files defined by the user on the command line. We are finally ready to see what makes the shell such a powerful programming environment. We are going to take the commands we repeat frequently and save them in files so that we can re-run all those operations again later by typing a single command. Fo… text/html 2022-07-21T06:59:32+00:00 Anonymous (anonymous@undisclosed.example.com) http://woodruffscientific.com/wiki/doku.php?id=wiki:cli:what_and_why&rev=1658408372&do=diff What and Why At a high level, computers do four things: * run programs * store data * communicate with each other * interact with us Most of us use windows, icons, mice, and pointers to interact with computers. These technologies didn't become widespread until the 1980s. Going back even further, the only way to interact with early computers was to rewire them. But in between, from the 1950s to the 1980s, most people used line printers. These devices only allowed input and output of th…