https://www.cs.vassar.edu/ 2026-06-09T10:02:20+00:00 https://www.cs.vassar.edu/ https://www.cs.vassar.edu/_media/favicon.ico text/html 2016-05-20T15:49:16+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.cs.vassar.edu/tutorial/linux_tutorial_eight?rev=1463759356&do=diff Linux Tutorial Eight 8.1 UNIX Variables Variables are a way of passing information from the shell to programs when you run them. Programs look “in the environment” for particular variables and if they are found will use the values stored. Some are set by the system, others by you, yet others by the shell, or any program that loads another program. text/html 2016-05-20T15:48:51+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.cs.vassar.edu/tutorial/linux_tutorial_four?rev=1463759331&do=diff Linux Tutorial Four 4.1 Wildcards The characters * and ? The character * is called a wildcard, and will match against none or more character(s) in a file (or directory) name. For example, in your unixstuff directory, type compsci-user@tim:~$ ls list* text/html 2016-05-20T15:47:59+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.cs.vassar.edu/tutorial/linux_tutorial_one?rev=1463759279&do=diff Linux Tutorial 1.1 Listing files and directories ls (list) When you first login, your current working directory is your home directory. Your home directory has the same name as your user-name, for example, compsci-user, and it is where your personal files and subdirectories are saved. text/html 2016-05-20T15:48:35+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.cs.vassar.edu/tutorial/linux_tutorial_two?rev=1463759315&do=diff Linux Tutorial Two 2.1 Copying Files cp (copy) cp file1 file2 is the command which makes a copy of file1 in the current working directory and calls it file2 What we are going to do now, is to take a file stored in an open access area of the file system, and use the